Related
I started looking at Android Development and got the whole Dev kit and the Eclipse enrionment setup and working fine.
The question I have is that I would try different apps I develop on the different ROMs available.
How do I get any of the new ROMs, like the HERO ROM ZIP files I can download to run in the emulator or is it even possible?
Im assuming that the system.img file in the SDK id the file I need to replace or re-create, but how is this done?
I am a noob to the develop stuff so step by step instructions would be much appreciated.
I also think this would be great for other developers and ROM makers to be able to test in this way.
Thanks
Simon
Hopefully THIS one dont get closed, it IS asking a development question...anyway,
I would like to know this as well. I would like to test things myself (getting better at manipulating them), and would like to know what he is asking as well.
Thanks.
I don't think this would work, as the ROMs are hardware depending, me thinks. Or at the least the kernel and drivers are.
maybe this will help, maybe not, just an emulator primer, so maybe people can jump on board with this
under <sdk path>/tools
to list out your AVD(android virtual device)
android list targets
will return:
Available Android targets:
id:1
Name: Android 1.1
Type: platform
API level: 2
Skins: HVGA (default), HVGA-L, HVGA-P, QVGA-L, QVGA-P
id:2
Name: Android 1.5
Type: platform
API level: 3
Skins: HVGA (default), HVGA-L, HVGA-P, QVGA-L, QVGA-P
id:3
Name: Google APIs
Type: add-on
Vendor: Google Inc.
Description: Android + Google APIs
Based on Android 1.5 (API level 3)
Libraries:
* com.google.android.maps (maps.jar)
API for Google Maps
Skins: HVGA (default), HVGA-L, QVGA-P, HVGA-P, QVGA-L
from here we choose our integer target, lets say 2
creating an AVD:
android create avd -n your_chosen_name_here -t 2
When you create an AVD, the android tool creates a dedicated directory for it on your development computer. The directory contains the AVD configuration file, the user data image and SD card image (if available), and any other files associated with the device. Note that the directory does not contain a system image — instead, the AVD configuration file contains a mapping to the system image, which it loads when the AVD is launched.
By default, the android tool creates the AVD directory inside ~/.android/avd/ (on Linux/Mac), C:\Documents and Settings\<user>\.android\ on Windows XP, and C:\Users\<user>\.android\ on Windows Vista
Click to expand...
Click to collapse
to run your newly created AVD:
emulator -avd your_chosen_name_here
maybe this will help, but I'm guessing everyone here already knows all of this.
references:
http://developer.android.com/guide/developing/tools/emulator.html#starting
Yeah, I understand that you can specify the AVD.
The only thing now is to edit the AVD to point to a different image. This is easy!
The system image file is a *.img file.
So how do we get our ROM images compiled into the IMG file format?
There must be a tool, but I cant find anything.
And what hardware does the emulator, emulate? Maybe it ignores the hardware specific calls throu an API so the ROM image target hardware shouldn't matter.
I just started messing around with rom's and after I build one I put system.img userdata.img and ramdisk.img from my /mydroid/out folder into the sdk's image folder and start the and it uses the new rom when I start the emulator
thats the easy part
do a nandroid backup
copy the sdk/platforms/android-1.5
to something like sdk/platforms/MINE
go to your AVD directory AVD/whateveryoucalledit
open up the config.ini
edit:
skin.name=HVGA
skin.path=platforms\MINE\skins\HVGA
image.sysdir.1=platforms\MINE\images\
go to your nandroid backup on your sdcard
copy system.img
go to sdk/platforms/MINE/images/
and paste the nandroid system.img
now run your AVD and it will boot that system.img
im running CyanogenMod rom right now in the emulator
hint* number pad 7 with numlock off in the emulator is how to open up the hardware keyboard
Awesome. I'll be giving this a try later.
One question: The apps are in the system.img file on the SDK images as far as I can tell. What do you do with all the apps in the new ROMs?
whatever you want to do with them, they're all there, even android market works perfectly
And where are you guys getting the system.img file from?
The ROM zip files dont have them.
Sorry....Im noob to this. LOL
ggolemg said:
whatever you want to do with them, they're all there, even android market works perfectly
Click to expand...
Click to collapse
OK, Im confused. Can you just unzip the ROM files and place in the folder that you point using the same folder structure?
OR
Do you have to have a system.img ?
Another thought:
I dont want to have to install all the ROMs just to create a Nandroid backup to get the images. There must be a way to create the images from the raw files in the ZIP files.
Any ideas?
UPDATE: The same technology used by Nandroid itself!
The google android emulator included in the google android sdk is limited. Although you can use 'adb push' to upload more tools, but one has to do it again next time. Follow the steps to create a enhanced system.img:
1. system.img is yaffs2 flash file system, so firstly you need the mkfs.yaffs2 tool, download it in the following link: Release Android Yaffs2 Tool (Both X86 And ARM). One has to be a registered user to download the tools.
2. use the 'adb push' to upload tools to android emulator, executables in /system/bin/, libraries in /system/lib, one can also create folder. One need change the file mode necessary.
3. upload the ARM mkfs.yaffs2 tool, use the following command to create system.img: # mkfs.yaffs2 /system /system.img
4. download the system.img to local with command 'adb pull', replace the system.img in your emulator folder/tools/lib/images/
Click to expand...
Click to collapse
so it seems like it would be just as much fun doing a nandroid backup
*edit*
so now the real question is, how do we go about ripping out the nandroid functionality to be able to do this locally?
*edit 2*
it is the mkfs.yaffs2 tool
Usage:
mkfs.yaffs2 yourdir yourimage
Ohsaka said:
NANDROID - CYGWIN DIRECTIONS (not not not, I repeat, not fully tested and verified yet)
Changes so far if you are using cygwin:
1) Make sure you have the 'netcat' and 'gcc' packages, else just run cygwin.exe again and get them.
You can test if you have them by running 'which nc' and 'which gcc', both commands should return /usr/bin/<command>
2) Compile the mkyaffs2image executable.
Inside the extracted nandroid archive directory, goto the tartools\yaffs2\utils\ directory (inside a cygwin prompt) and type 'make'.
This should generate a file named "mkyaffs2image.exe" which you need to place somewhere on your path.
(Hint: If you haven't downloaded the Android SDK, abort now. Wait for more explicit directions... Else, place the .exe where adb is, since it should be on your path already)
3) Edit the nandroid.sh script. (else you get a permission denied error when the script tries to run the dump_image-arm file)
Find the line:
adb push ./$tool /cache/$tool
Add the following line after it:
adb shell chmod 777 /cache/$tool
4) Make a managed mount named /tmp (else windows will puke on the long unix filenames with colons, etc)
mkdir /tmp
mount -o managed c:/cygwin/tmp /tmp (Note: change c:/cygwin to be the directory cygwin was installed to, you can find it by typing 'cd /' and then 'explorer .')
5) Follow the standard "tar + mkyaffs2image" directions to generate the last three .img files. They refer to the /tmp directory which you created in the previous step.
Viola! Looks like I have a complete backup image now...
$ ls -l
total 117504
-rw-r--r-- 1 Osaka None 2621440 Jun 12 21:31 boot.img
-rw------- 1 Osaka None 737088 Jun 12 22:07 cache.img
-rw------- 1 Osaka None 53570880 Jun 12 22:06 data.img
-rw-r--r-- 1 Osaka None 262144 Jun 12 21:31 misc.img
-rw-r--r-- 1 Osaka None 5242880 Jun 12 21:31 recovery.img
-rw------- 1 Osaka None 57885696 Jun 12 22:06 system.img
Now I just need to drink up the courage to test it on my phone!
Click to expand...
Click to collapse
ggolemg said:
so it seems like it would be just as much fun doing a nandroid backup
*edit*
so now the real question is, how do we go about ripping out the nandroid functionality to be able to do this locally?
*edit 2*
it is the mkfs.yaffs2 tool
Usage:
mkfs.yaffs2 yourdir yourimage
Click to expand...
Click to collapse
Is this for Linux (which I don't have) and if so, is there a Windows version?
short answer: yes its only for linux
long answer is a plea for help i posted in the nandroid thread about it:
I was wondering if there was a method to use the yaffs3 command to make a system.img from an unzipped rom placed on the sdcard through ADB, from what I've seen nandroid is almost exactly what I'm after.
The issue of why I can not just do this through linux, i can. I just want to be able to do it through windows some way without loading the entire rom on the phone and nandroiding the system.img out.
Either the aforementioned method, or the ability to mount a portion of my computers hard drive as a recognizable mountable partition within android running on the usb connected phone, loading the rom on that partition, unzipping it there, running ADB and making the system.img. But this way seems to bring up more problems than it's worth.
Or.. running the make yaffs3 command through ADB running the emulator with the rom unzipped on the virtual sdcard. This would actually be the best option as it would not require an actual phone.
I hope someone can help. Thank you very much.
Click to expand...
Click to collapse
hopefully someone knows the answer, I'm still trying though.
so on windows we would adb push the update.zip to the sdcard on the emulator
unzip it on the sdcard, there are apps for that
adb shell mkfs.yaffs2 sdcard/<extractedzipfilename>/system/ sdcard/system.img
adb pull the newly created system.img and proceed to load it in the emulator
i know im missing a ton here, please someone correct me
I'd love to be able to run these images in the emulator on windows!
ggolemg said:
thats the easy part
do a nandroid backup
copy the sdk/platforms/android-1.5
to something like sdk/platforms/MINE
go to your AVD directory AVD/whateveryoucalledit
open up the config.ini
edit:
skin.name=HVGA
skin.path=platforms\MINE\skins\HVGA
image.sysdir.1=platforms\MINE\images\
go to your nandroid backup on your sdcard
copy system.img
go to sdk/platforms/MINE/images/
and paste the nandroid system.img
now run your AVD and it will boot that system.img
im running CyanogenMod rom right now in the emulator
hint* number pad 7 with numlock off in the emulator is how to open up the hardware keyboard
Click to expand...
Click to collapse
Hm, the emulator just hangs on the ANDROID.. message, similar to when the standard system.img was in.
anyone figure out how to do this on a mac?
thanks if anyone can.
johnnylicious said:
anyone figure out how to do this on a mac?
thanks if anyone can.
Click to expand...
Click to collapse
I found this somewhere else and take no credit for it. I did shorten the steps.
Of course this is once you have the sdk installed on your mac
1. Run Terminal, and change to the 'tools' directory of the SDK (or add the tools directory to the path settings in ~/.profile).
2. Type './android list target'
3. Note the 'id' number of the '1.5' target (in my case it's '2')
4. Type './android create avd -n enhanced -t 2' (substitute 2 with the target number determined above if required)
5. You will be prompted to create a hardware profile. {You can leave as default no}
6. Use nandroid to create a backup then copy system.img
7. Copy file to ~/.android/avd/enhanced.avd/system.img
8. You're ready! Type './emulator -avd enhanced' to run! Note: inital boot may take a few minutes!
Can anyone post up the
Android Yaffs2 Tool (Both X86 And ARM)
for download? The above link doesn't work. I did a google search and all the D/L links are referring to the same location.
thanks!
When I first attempted to install the SDK, I found tutorials that only had bits and pieces about the whole procedure. A lot of Google searches and hours of eye strain. I wanted to write a solid tutorial, but instead of publishing it in a personal blog, I chose to publish it here on xda-developers. This is the definite forum to come to if you are interested in Android/G1/HTC Dream development or costumization. I wrote this to make the enlarge the knowledge of this community.
!! THIS TUTORIAL IS FOR THE LATEST UBUNTU RELEASE: JAUNTY JACKALOPE 9.04 !!
!!START -------------------------------------- Optional Preparation --------------------------------------
This applies if you -
Are interested in installing Ubuntu for the first time.
Are/will be reinstalling Ubuntu from scratch.
Want to keep your SDK installation easy to reach.
Want to keep things nice and clean.
And your machine -
Has a second hard drive.
Has free space for another small partition.
This procedure will make things easier during installation of the SDK and in the long run. Hopefully you've read about partitions. If you are dualbooting, please read this first to get an idea of what you're doing.
While installing Ubuntu and on the Prepare Disk Space screen (partition editor), select "Specify partitions manually (Advanced)"
On the Create Partition dialog, select the following options:
Type for the new partition: Primaryor Logical if you're dualbooting and know what you are doing.
New partition size in megabytes: 5120MB (5GB) might work. BUT:
ccyrowski said:
It should be noted that if you ever plan on compiling kernels and/or cupcake ROM's you will NEED ubuntu8.04. You'll also need at least 10GB.
Click to expand...
Click to collapse
Location for the new partition: Beginning
Use as: Ext4 or Ext3Filesystem doesn't matter. (?)
Mount point: /AndroidSDKEnter this manually
Complete Ubuntu installation as usual.
-------------------------------------- Optional Preparation -------------------------------------- END!!
You will now install the SDK.
!!START -------------------------------------- Installing Android SDK --------------------------------------
Installing the SDK is the easiest of all.
Download the SDK.169.9 MB [http://developer.android.com/sdk/download.html?v=android-sdk-linux_x86-1.5_r3.zip]
Right-click and select Extract Here.
Move the contents of the android-sdk-linux_x86-1.5_r3 directory to your desired location.If you followed Optional Installation, move the contents to your /AndroidSDK directory in the root of your filesystem.
Close directory window.
-------------------------------------- Installing Android SDK -------------------------------------- END!!
You will now set up your bashrc file and UDEV to recognize your HTC Device.
!!START -------------------------------------- ADB + FASTBOOT --------------------------------------
The Android Debug Bridge (adb) is one of the tools that will help you the most when you run into flashing problems or running shell commands directly from your machine. UDEV will not recognize your G1 out of the box, but we will configure it with some rules so it can connect.
We will work with /AndroidSDK as the location of your sdk. If this is not your setup, I think you're smart enough to figure it out.
Editing .bashrc file to use tools from /AndroidSDK/tools/ directory -
Go to your home folder.Example: /home/wddglr/
Press Control + H to view hidden files.
Look for your .bashrc file and double click to open it with gedit.
Add the following lines to the top of the file:
Code:
#AndroidDev PATH
export PATH=${PATH}:/AndroidSDK/tools
IMPORTANT NOTE
savethechicken said:
This is the way that I have my .bashrc file setup. For those having problems with it not recognizing the adb as a command try this...
Code:
export PATH=$PATH:/AndroidSDK/tools
I removed the {} around ${PATH} and it is working if I had them on it would say that it didn't recognize the command. Removed them and all works well.
Click to expand...
Click to collapse
Setting up UDEV to recognize HTC Device -
Type the following into a terminal (Applications > Accessories > Terminal):
Code:
gksudo gedit /etc/udev/rules.d/51-android.rules
Now add the following line to the blank file:
Code:
SUBSYSTEM=="usb", SYSFS{idVendor}=="0bb4", MODE="0666"
Click save and close.
To restart udev, open up a terminal and enter:
Code:
sudo /etc/init.d/udev restart
Setting up fastboot -
Download this fastboot binary from http://android-dls.com.130.4 KB [http://android-dls.com/files/linux/fastboot]
Once downloaded to your desktop, right click and select Properties.
Navigate to the Permissions tab and configure the following option:Execute: [√] Allow executing file as program
Click Close.
Move the fastboot bianary to your /AndroidSDK/tools/ directory.
Reboot.
-------------------------------------- ADB + FASTBOOT -------------------------------------- END!!Now you can use adb and fastboot directly from any terminal. If you chose to do the Optional Preparation, you can now save your Eclipse Workspace and your downloaded/custom ROMs/Themes in this new /AndroidSDK directory keeping things easier to reach and safe from evil disk errors or other mishaps!!! :OIf you are having problems, send me a PM. I will be happy to help.
*applaudes* awesome. Should be added to helpful threads.
very nice! perhaps add a "(How-To)" prefix to thread??
Everything was going great in setting this up until I got to this part "gedit /etc/udev/rules.d/51-android.rules"
I cannot find "51-android.rules" inside of "rules.d"
Any thoughts>?
nicholasbithell said:
Everything was going great in setting this up until I got to this part "gedit /etc/udev/rules.d/51-android.rules"
I cannot find "51-android.rules" inside of "rules.d"
Any thoughts>?
Click to expand...
Click to collapse
it does not exist, you will make it.
do the command as stated above.
Code:
gksu gedit /etc/udev/rules.d/51-android.rules
Damn you beat me to it!
I was just thinking earlier about doing this same "How-To" guide, I was surprise to see it posted just now.
Anyways, great job!
Can someone sticky this thread. Now I have ADB & fastboot on my Win7, Ubuntu, and OS X Partition. Thank you wddglr.
bravo...linux rocks even better now!...
Awesome tutorial for setting this up. Have been using adb/sdk on ubuntu since oct. but this would have saved me some headaches back in the first couple of weeks.
The onlything that is not clear and/or confuses me is
Setting up the udev to recognize the device.
SUBSYSTEM=="usb", SYSFS{idVendor}=="0bb4", MODE="0666"
Have never used this (will now to see if it will do anything) and the only problem i have is that sometimes i have to kill-server to get it to connect correctly but i have seen this happen to almost everyone on many forums since the 9.04 came out. And even after putting this file on the computer i have had the problem.
savethechicken said:
Awesome tutorial for setting this up. Have been using adb/sdk on ubuntu since oct. but this would have saved me some headaches back in the first couple of weeks.
The onlything that is not clear and/or confuses me is
Setting up the udev to recognize the device.
SUBSYSTEM=="usb", SYSFS{idVendor}=="0bb4", MODE="0666"
Have never used this (will now to see if it will do anything) and the only problem i have is that sometimes i have to kill-server to get it to connect correctly but i have seen this happen to almost everyone on many forums since the 9.04 came out. And even after putting this file on the computer i have had the problem.
Click to expand...
Click to collapse
It happens to me also from time to time. especially when i reboot and want to go into adb while the device is rebooting. although that file, 51-adndroid.rules, is what helped me get adb to recognize the device. the guide on developer.android.com talked about 50-android.rules but after a few deep searches i found this: http://groups.google.com/group/android-developers/browse_thread/thread/1d3488c601243686
Okay A few questions for you....
First I fixed the whole "couldnt find the (51-android.rules) file now I am having issues with executing ADB!
When in terminal this is what I get...
"[email protected]:/home/nick# /AndroidSDK/tools/adb
bash: /AndroidSDK/tools/adb: cannot execute binary file
[email protected]:/home/nick#"
and I also noticed something different from when I start terminal the first lines now state
"bash: : command not found
[email protected]:~$"
I dont remember the first line ever being there, but I could be mistaken!
Any help would be greatly appreciated!
Edit: You state creating "Mount point: /AndroidSDK" During Installation, and what I did was Just place my AndroidSDK at root so it is at "/AndroidSDK". I dont know if this makes a difference.
I am actually running ubuntu 8.10 ha! I just tried to update But I keep getting errors! is there anything I can change to get this to work on ubuntu 8.10?
nicholasbithell said:
First I fixed the whole "couldnt find the (51-android.rules) file now I am having issues with executing ADB!
When in terminal this is what I get...
"[email protected]:/home/nick# /AndroidSDK/tools/adb
bash: /AndroidSDK/tools/adb: cannot execute binary file
[email protected]:/home/nick#"
and I also noticed something different from when I start terminal the first lines now state
"bash: : command not found
[email protected]:~$"
Edit: You state creating "Mount point: /AndroidSDK" During Installation, and what I did was Just place my AndroidSDK at root so it is at "/AndroidSDK". I dont know if this makes a difference.
I am actually running ubuntu 8.10 ha! I just tried to update But I keep getting errors! is there anything I can change to get this to work on ubuntu 8.10?
Click to expand...
Click to collapse
okay, a few things -
seems like your .bashrc file isn't setup right (?)
make sure that the two lines you inserted into it are on separate line
Code:
#AndroidDev PATH
export PATH=${PATH}:/AndroidSDK/tools
because maybe export PATH=${PATH}:/AndroidSDK/tools got commented on accident if you copy pasted.
When copying your SDK to the root of your filesystem, did you copy it as your own user or as root? you can use:
Code:
gksu nautilus
to copy system files with complete root privileges.
What exactly are you trying to update, Ubuntu or ... ? There shouldn't be a difference to get this working on 8.10, the only thing that seemed to change was the 51-android.rules file. Maybe this can help -
renaming it to 50-android.rules with
Code:
gksu nautilus
and deleting any backups (use CTRL+H to view hidden files).
restarting udev using:
Code:
sudo /etc/init.d/udev restart
Remember this is for 9.04, not 8.10. I hope this helps.
wddglr said:
okay, a few things -
seems like your .bashrc file isn't setup right (?)
make sure that the two lines you inserted into it are on separate line
Code:
#AndroidDev PATH
export PATH=${PATH}:/AndroidSDK/tools
because maybe export PATH=${PATH}:/AndroidSDK/tools got commented on accident if you copy pasted.
When copying your SDK to the root of your filesystem, did you copy it as your own user or as root? you can use:
Code:
gksu nautilus
to copy system files with complete root privileges.
What exactly are you trying to update, Ubuntu or ... ? There shouldn't be a difference to get this working on 8.10, the only thing that seemed to change was the 51-android.rules file. Maybe this can help -
renaming it to 50-android.rules with
Code:
gksu nautilus
and deleting any backups (use CTRL+H to view hidden files).
restarting udev using:
Code:
sudo /etc/init.d/udev restart
Remember this is for 8.10, not 9.04. I hope this helps.
Click to expand...
Click to collapse
Okay this is how I moved my "AndroidSDK" Folder to root....
[email protected]:~$ su
Password:
[email protected]:/home/nick# mv /home/nick/Desktop/AndroidSDK /
[email protected]:/home/nick#"
And I went to the bashrc file and it is entered in there correctly.
This is still what I get even after restarting Udev...
" bash: : command not found
[email protected]:~$ adb
bash: /AndroidSDK/tools/adb: cannot execute binary file
[email protected]:~$ su
Password:
[email protected]:/home/nick# adb
bash: adb: command not found"
Edit: This is what my .bashrc file looks like, well the top part of it anyways....
#AndroidDev PATH
export PATH=${PATH}:/AndroidSDK/tools
# ~/.bashrc: executed by bash(1) for non-login shells.
# see /usr/share/doc/bash/examples/startup-files (in the package bash-doc)
# for examples
Okay your .bashrc is setup right and it's recognizing adb and its directory.
I would say it's something to do with permissions. since you moved it under su, you are not the owner so i would say that you'd have to change the permissions of /AndroidSDK
you can do that with -
Code:
gksu nautilus
Navigate to /
Right click on /AndroidSDK and select Properties
Click on Permissions tab
Select your user account as the owner
hopefully now it will function correctly
wddglr said:
Okay your .bashrc is setup right and it's recognizing adb and its directory.
I would say it's something to do with permissions. since you moved it under su, you are not the owner so i would say that you'd have to change the permissions of /AndroidSDK
you can do that with -
Code:
gksu nautilus
Navigate to /
Right click on /AndroidSDK and select Properties
Click on Permissions tab
Select your user account as the owner
hopefully now it will function correctly
Click to expand...
Click to collapse
I dont understand what this line does...
"gksu nautilus"
when i type it in it asks me for my administrative password and then after i put it in it hangs for a sec and then back to...
bash: : command not found
[email protected]:~$ gksu nautilus
[email protected]:~$
nautilus is the file browser, while using gksu nautilus you can use the file browser under root privileges
wddglr said:
nautilus is the file browser, while using gksu nautilus you can use the file browser under root privileges
Click to expand...
Click to collapse
I dont have Nautilus as a file browser I have Thunar I believe.
Then gksu thunar
wddglr said:
nautilus is the file browser, while using gksu nautilus you can use the file browser under root privileges
Click to expand...
Click to collapse
For permissions it says that I am the owner and the group (I=Nick) for Others it says Read and Write, Access says Read and write. So it seems it has all the right permissions. Any other Ideas?
Partitioning HD
First off, thank you for this thread, it's most excellent. I have a question that is slightly off topic, but not so much. I have Ubuntu 9.04 installed on my recovery partition. This partition is only 10 GB, while I have Vista on my main. I have almost 100 GB free on my main drive, and what I want to know is, if I resized my partitions to give more space to Ubuntu, how would it affect my comp? (if at all). And which OS should I be on while resizing, Ubuntu or Vista?
DO NOT POST IN THIS THREAD BEFORE READING THE WHOLE POST
PLEASE ADD GUIDES TO COMMON ISSUES YOURSELVES
To my recollection, the previous WM Guides thread was successful.. so we'll be moving on to android as well - from beginner to pro.
I hope this thread will provide answers to a decent percentage of your questions.
Please hold until guide collecting is finished..
In the meanwhile you are ALL invited to send me links or full guides to add to this thread.. remember, we are all about sharing.
COMING SOON! (in the meanwhile, you've got a great battery life guide at http://forum.xda-developers.com/showthread.php?t=471521 - be sure to thank BruceElliot for it!)
also, if you decide to post a guide, please keep the guide as neat as possible, with a title containing the LEVEL ([BEGINNER], [INTERMEDIATE], [PRO]) and the commonly searched words so that people who look for it can find it easily. (if you can, use the same color (dark orange) and same size (4) and Bold.. for the main title.. tho that's not a must )
post #2. [BEGINNERS+INTERMEDIATE] Replacing System Files using Android Commander
post #3. [EVERYONE] ADB Workshop by Adrynalyne and Guide by Captainkrtek
post #4. [QUICK FAQ's] Common QnA's for beginners by Timmymarsh (work in progress)
[BEGINNERS] Replacing system files using Android Commander
Replacing system files using Android Commander:
(This post was formally based in the HD2's RTL support thread and revolved around our need to replace frameworks)
so:
1. Download the android SDK from: http://dl.google.com/android/android...08-windows.zip
2. EXTRACT(!!!) the android-sdk-windows to c:\
(make sure you extract the dir - not run the setup from inside the zip file)
3. install Android Commander from http://androidcommander.com
4. Connect your device and make sure it's set to Debugging mode in /settings/applications/development/
5. You might have to set a dir containing your adb.exe file. set it to c:\android-sdk-windows\tools\
6. You will see a Total Commander-like interface. you can then copy the framework.jar file to the correct directory (there's no difference between SD android builds and androids in ROM - the system dir will be shown the same way)
a. Yes, you can replace/delete system files while android is running.
b. (for androids running from SD) Any file copied to /sdcard/android/root/system/X will be copied to /system/X in the system file. The sdcard/android root dir is JUST LIKE your root in ROM androids.
c. Make sure you either created a backup or verified a match in any other way before replacing files like frameworks, zimage, modules, etc.. your android might not boot afterwards (I keep all system.ext2 files backed up so that i can restore them incase i screw something up.)
enjoy
[EVERYONE] ADB Workshop by Adrynalyne and Guide by Captainkrtek
This following guide was rewritten by Captainkrtek, please make sure to thank him for it
Original Post:
(http://forum.xda-developers.com/showthread.php?t=879701)
This workshop was held in #android-learning on irc.freenode.net by XDA Member Adrynalyne. All credit to him for this guide, I simply am taking it and turning it into a guide. Here we go!
You can find the raw IRC log here
Good evening folks, and welcome to my ADB workshop. This is by no means a full explanation on the subject, but more of a crash course to help folks get up to speed, and get more from their devices. There may be some things you already know here, so please be patient and respect those who do not.
Reference Files
http://adrynalyne.us/files/How to install adb.pdf
http://adrynalyne.us/files/Using ADB.pdf
So, lets just start with the basics.
What is ADB?
ADB stands for the android debugging bridge and is used for testing and debugging purposes by developers.
However, we like to get more out of our devices, and its a great way to fix things.
Knowing adb can mean the difference between a paperweight and a working phone.
So, to start with, we will look at installing ADB.
Generally speaking, the Sun/Oracle JDK is required to run all SDK functions.
ADB is but one tool in the SDK arsenal.
So, we begin by downloading and installing the JDK. This can be found here:
https://cds.sun.com/is-bin/[email protected]_Developer
Choose your OS, download and install. I recommend that 64 bit users use the regular x86/32 bit version as well.
Moving ahead, we download the Windows sdk from here:
http://dl.google.com/android/installer_r08-windows.exe
Due to already installing JDK, you won't be stopped by the install process.
Now, if you notice, I installed it to:
C:\android-sdk-windows
I did this because it makes things easier when setting up path variables.
I encourage everyone to do the same, but obviously it is not required.
So, this SDK is handy, but is only good up to 2.2. We want the latest and greatest! (Well I do)
So, we navigate to:
C:\android-sdk-windows\
and we run SDK Manager.exe
If you notice in your PDF file for installing adb, you will notice that you can update, and I made a choice not to include earlier sdk versions.
I won't go into full detail on that, but depending on the version of SDK you have, 8 or 9, it WILL make a difference in using adb.
By default, for version 8 adb.exe resides in C:\android-sdk-windows\tools
By default, for version 9 adb.exe resides in C:\android-sdk-windows\platform-tools
We will assume version 9 in this guide
Really, the SDK is installed and adb is usable right now, but in my humble opinion, its not enough
I like the ability to use adb in ANY directory on my machine.
To do this, we edit Windows's environment variables.
Specifically, the system path.
To do this, we click on start, or the orb (depending on OS), and right click on Computer, left clicking on properties in the menu.
If its windows XP, I believe it brings you into advanced system properties immediatly. Vista and 7 need a second step.
On the left hand side, as you notice I have highlighted in the pdf, left click advanced system settings.
Under advanced tab, we left click environment variables...
There are two boxes here.
We are concerned with system variables, however.
So we scroll down the list and highlight path and click edit.
Ignoring all the extra stuff in here, make sure you are at the end of the line, and type
Code:
;C:\android-sdk-windows\platform-tools
The semicolon allows us to separate it
from the previous path statement.
Click ok all the way out.
We now have ADB setup globally. We can use cmd.exe (I use powershell) and no matter what directory we are in, adb is recognized.
If it is not, make certain you entered the path into system variables, and made no typos.
If you installed to a different location, you will need to adjust the path accordingly.
This concludes the section on installing the Android SDK to use ADB.
This next section will be on using ADB, so please open that pdf now.
Now, this applies to any OS, not just Windows.
Well, with the exception of the USB drivers.
I will not go too much into that, but if you take a look at the PDF, it goes through installing usb drivers for the sdk, and how to download them.
Fiarly straightforward, in that rspect.
Now, to setup our phones to use with the SDK and ADB, we must change some settings.
First, we go to menu softkey, then settings.
We scroll down to Applications and tap it.
Under Development, we will check Enable USB Debugging. Please note the SGS phones are different in this respect.
The USB cable must be unplugged before enabling or disabling this setting.
Once this is done, we are now ready to play with adb
One quick note: If you get device not found/conencted, please reboot your phone. DJ05 has a quirk in it where ADBD randomly crashes on boot.
A reboot will fix this
ADBD= ADB Daemon
Ok, continuing on.
Lets look at installing applications. This is also known as sideloading.
Unlike installing from the SD card, it does not require unknown sources to be enabled.
The command for this is
Code:
adb install packagename
This assumes that you are working from the directory where the file is located.
This will install the application to /data/app.
It will also show sometimes useful errors if install fails.
That is not something you will see from the Android GUI.
Now, a lot of us have probably deleted files with apps like Root Explorer. While this isn't really a bad thing, it leaves behind databases and data for the application removed.
This is where the 0kb applicaiton entries come from.
If you take that application entry name, you can uninstall the extra data via adb.
First we go to the adb shell which logs into the phone.
Code:
adb shell
If we end up with a $, we will want admin rights, in many cases. This is not one of them, I don't beleive.
To get admin rights, you want to type
Code:
su
Look at your phone if this is the first time, it may prompt you to allow access. Else you will get permission denied.
If you are not rooted, this will not work either.
Ok, now that we are logged in, we will type
Code:
pm uninstall packagename
where packagename is the name of the 0kb listing.
Now this seems like a pain in the a** and I agree.
HOWEVER
There will be a time where Manage applications crashes when you try to uninstall it from the phone. In this case, a factory reset, or this method is the only effective way to fix the problem.
Moving on.
How many of us have removed system applications or renamed them? Did you know that you can simply disable them from the system?
Code:
adb shell
su
pm disable appllicationname
This will disable it, and the system will ignore it.
This can be seen as safer than deleting or renaming things, but your mileage may vary.
On the other hand, you can also re-enable these applications.
Code:
adb shell
su
pm enable applicationname
Please note: Not all applications will properly re-enable. I believe a factory reset or reinstall of said application will fix the issue.
Also, application names are absolutely case sensitive.
*nix based Operating Systems see the letter 'a' and 'A' as two different things.
when you log into adb shell, you are playing by android rules
Ok, a lot of us tweak and mod our phones and turning off the device to get to clockwork recovery, or battery pulls, or multiple button holds to get into Download mode are troublesome and annoying at best.
ADB can help us here.
Here, we do not need to be logged into the shell
If we want to merely reboot the phone:
Code:
adb reboot
If we want to go to recovery (works well with voodoo5)
Code:
adb reboot recovery
If we want to go to Download Mode because we need Odin, heaven forbid:
Code:
adb reboot download
Its instant. No waiting on animations or anything else.
Its also handy if Android has locked up, but yet still works in adb.
I for one hate taking my case off to battery pull.
So now we move on to pushing and pulling files.
Sometimes, I don't feel like mounting my sd card to copy a file over to my phone.
I can use this command to push a file straight to my sd card:
Code:
adb push filename /pathtodirectoryonphone
So for instance, if I have test.txt that I want to send, I would type:
Code:
adb push test.txt /sdcard/
and there it goes.
Ok moving on
Pushing files can be done to any directory, however, some are protected.
For instance, /system is going to give you a permission denied or a read only filesystem error.
To get around this, the easiest thing to do is push the file to your sdcard, then log into the shell:
Code:
adb shell
Code:
su
We will then mount the system as writable
Code:
mount -o rw,remount /dev/block/stl9 /system
Then we can use something like
Code:
cp /sdcard/test.txt /system/app/test.txt
cp stands for copy
and it requires the path of the file and destination path. The name of the file is optional
When you copy it, you can rename it to whatever you like.
For instance, if we wanted to backup a file
Code:
cp /sdcard/test.txt /sdcard/backuptest.txt
Now, lets assume you do not have busybox installed.
You non rooted users will not.
Then you must use a slightly more complicated command called dd
This is used like this:
Code:
dd if=/sdcard/test.txt of=/system/app/test.txt
if is for inputfile
of= output file
Not every user friendly, but probably one of the safer copy commands.
Ok, moving on to pulling files.
Lets say you want to get a file from your phone, to modify, backup, etc.
To do this, we simply use adb in this manner:
Code:
adb pull /pathtofile/filename destinationname
For instance, if I wanted to backup ADW launcher in system/app
I would do this
Code:
adb pull /system/app/ADWLaucnher.apk ADWLauncher.apk
And it will pull the file from the phone and put it in the current directory.
Like above, you can specifcy where it goes.
pushing files to the sdcard, it seems prudent to talk about changing permissions.
sdcards are typically fat32, which destroys permisisons, and Android is heavily permission based.
So if you push an application to your sd card, then try to copy it to /system/app/ bad things are going to happen, or the app may not even show up.
So in that case, we use something called chmod.
This is used in this manner
Code:
adb shell
su
chmod 755 /pathtoapplication/applicationname
Keep in mind
you dont want to do this while its still on your sd card.
an example
Code:
adb shell
su
chmod 755 /system/app/ADWLauncher.apk
755 is good for applications and script files.
Just a couple more topics to cover.
Lets go over deleting files.
This becomes especially handy for removing rogue applications.
To do this, we must be in the adb shell.
Code:
adb shell
su
rm /system/app/ADWLauncher.apk
You may need to remount system as writable with:
Code:
mount -o rw,remount /dev/block/stl9 /system
That applies when using chmod as well.
So what I did above was delete ADW Launcher from system/app
However, what if I wanted to delete the entire contents of a directory?
Same thing as before, except
Code:
adb shell
rm -f /data/dalvik-cache/*.*
I just cleared my dalvik-cache with that command
very quick, very effective.
If you just tried that, please reboot your phone now
Ok....this leaves us with the final topic: logcat
logcat allows us to log what the OS is doing, and possibly delve information for when things are not working
its quite simple Reading it is another.
To use logcat
Code:
adb shell
logcat
To logcat to a certain file do
Code:
adb shell
logcat > /sdcard/logcat.txt
Now we let the log settle down to a reasonable amount of data coming in and not a wall of scrolling, then start the app in question. When it gives an error, we hit ctrl-C and kill the adb shell session.
This should have captured enough data to see the error. Now, I prepared an example. A user came to me on IRC, and Google Maps was force closing. Clearing data didnt fix it, Clearing dalvik-cache, and fix permissions did not fix it. In this case, the user did not know how to use adb So I had him grab an app called alogcat from the market and email me the log. This is also a very valid method.
this file explains what the problem was, and highlights what to look for as an example.
http://adrynalyne.us/files/logcat.pdf
___________________________________________________________________
This concludes the guide from Adrynalyne, there will be more workshops such as this one in irc.freenode.net #android-learning.
Thanks to everyone in #samsung-fascinate !
QUICK FAQ's
sources: Q&A Section, The Weekly Q&A Section by XDA News Writers (thanks guys)
Q: ‘Is there any way to block specific apps from using my data connection?’
A: Try the Droid Wall application.
Q: ‘I read how you can make changes in the build.prop file on my Android device. How exactly do I get to it?’
A: Install ASTRO file manager, browse to /system, long press on build.prop – Edit – Copy. Press on the home icon then Edit icon – Paste. Connect sd card, edit it, and paste it over from where you copied build.prop
Q: What happens if I update my phone? will I need to re-root it and get the ROM again? will all of my applications get erased? If so, is there a way around this?
A: You will lose your root, but not apps if it is just an update.
Q: I just tried to flash a ROM from recovery on my Android phone and got “Verification Failed, Installation Aborted” What happened?
A: Before you can flash a custom ROM the .zip file must be digitally signed in the ROM kitchen, if unzipped and re-zipped it will lose its verification, this happens often using the Safari browser as it likes to decompress .zip’s. Or if your download is corrupted (download the ROM again) it will fail the Verification.
Q - HTC Location Widget shows "map data unavailable"
A - On the widget, click the pin/then click the windows button/click get more/scroll to download maps/download relevant map (care, maybe a big file). Now exit and click onto map, your location should now be visible :)
Q:So, I moved all the apps on the SD, but is still not enough. How can I free some memory? I could delete the cache of the older upgrade or something else?
A:Do you have pictures and videos? If so, check if they are on the SD card and not on your internal memory. Cleaning your cache helps, and try deleting your text messages threads.
Q: ‘What exactly is a kernel and what are the benefits in changing it?’
A: A kernel is a bridge between the applications and the actual data processing done at the hardware level. The kernel’s responsibilities include managing the system’s resources – the communication between hardware and software components. Flashing different kernels gives you different operating speeds, better battery life, the ability to overclock, and more.
Android control other device with IOIO Board.
It use ADB.
http://androidcontrol.blogspot.com/2011/10/ioio-board-for-android-control-io.html
timmymarsh said:
QUICK FAQ's
sources: Q&A Section, The Weekly Q&A Section by XDA News Writers (thanks guys)
Q: ‘Is there any way to block specific apps from using my data connection?’
A: Try the Droid Wall application.
Q: ‘I read how you can make changes in the build.prop file on my Android device. How exactly do I get to it?’
A: Install ASTRO file manager, browse to /system, long press on build.prop – Edit – Copy. Press on the home icon then Edit icon – Paste. Connect sd card, edit it, and paste it over from where you copied build.prop
Q: What happens if I update my phone? will I need to re-root it and get the ROM again? will all of my applications get erased? If so, is there a way around this?
A: You will lose your root, but not apps if it is just an update.
Q: I just tried to flash a ROM from recovery on my Android phone and got “Verification Failed, Installation Aborted” What happened?
A: Before you can flash a custom ROM the .zip file must be digitally signed in the ROM kitchen, if unzipped and re-zipped it will lose its verification, this happens often using the Safari browser as it likes to decompress .zip’s. Or if your download is corrupted (download the ROM again) it will fail the Verification.
Q - HTC Location Widget shows "map data unavailable"
A - On the widget, click the pin/then click the windows button/click get more/scroll to download maps/download relevant map (care, maybe a big file). Now exit and click onto map, your location should now be visible :)
Q:So, I moved all the apps on the SD, but is still not enough. How can I free some memory? I could delete the cache of the older upgrade or something else?
A:Do you have pictures and videos? If so, check if they are on the SD card and not on your internal memory. Cleaning your cache helps, and try deleting your text messages threads.
Q: ‘What exactly is a kernel and what are the benefits in changing it?’
A: A kernel is a bridge between the applications and the actual data processing done at the hardware level. The kernel’s responsibilities include managing the system’s resources – the communication between hardware and software components. Flashing different kernels gives you different operating speeds, better battery life, the ability to overclock, and more.
Click to expand...
Click to collapse
Thank you for your patience and taking the time to answer those questions. I loved your simple and easily digestible format.
There is a note
*nix based Operating Systems see the letter 'a' and 'A' as two different things.
when you log into adb shell, you are playing by android rules
Click to expand...
Click to collapse
this note is all wrong..
1. linNUX is not *NIX.
2. Mac OS-X is a *NIX OS, it is based upon UNIX, they use their own variant called Darwin. Darwin does not require capitolization.
3. The word should be POSIX. Linux is POSIX compliant and POSIX defines the capitolization standardards
soft brick
Taioba said:
Is there any way to use ADB even though I can not enable USB debugging by the android?
I have an Atrix with soft-brick. How can I restore a file (framework-res.apk) knowing that my USB debugging is off?
I can enable ADB via fastboot?
Thanks!
Click to expand...
Click to collapse
I found this for atrix 4g....
http://forum.xda-developers.com/showthread.php?t=965546
hope it helps
knoknot said:
i have a bricked s2 not so sure how to go about reviving it via adb
Click to expand...
Click to collapse
check this thread
http://forum.xda-developers.com/showthread.php?t=1237815
thanks. searched for that
Thanks for it.
Great Guys............ :good:
Thanks for sharing.
Thanks for sharing this guild :d, i am new member for reccod
Great job~ Sometimes could be used this.
I'm using Windows 10 RTM and I've set the path, yet I still get the "unrecognized application" error in the command console. What am I missing?
Nevermind, a restart fixed it. Used to be you didn't have to.... sheesh.
nir36 said:
Replacing system files using Android Commander:
(This post was formally based in the HD2's RTL support thread and revolved around our need to replace frameworks)
so:
1. Download the android SDK from: http://dl.google.com/android/android...08-windows.zip
2. EXTRACT(!!!) the android-sdk-windows to c:\
(make sure you extract the dir - not run the setup from inside the zip file)
3. install Android Commander from http://androidcommander.com
4. Connect your device and make sure it's set to Debugging mode in /settings/applications/development/
5. You might have to set a dir containing your adb.exe file. set it to c:\android-sdk-windows\tools\
6. You will see a Total Commander-like interface. you can then copy the framework.jar file to the correct directory (there's no difference between SD android builds and androids in ROM - the system dir will be shown the same way)
a. Yes, you can replace/delete system files while android is running.
b. (for androids running from SD) Any file copied to /sdcard/android/root/system/X will be copied to /system/X in the system file. The sdcard/android root dir is JUST LIKE your root in ROM androids.
c. Make sure you either created a backup or verified a match in any other way before replacing files like frameworks, zimage, modules, etc.. your android might not boot afterwards (I keep all system.ext2 files backed up so that i can restore them incase i screw something up.)
enjoy
Click to expand...
Click to collapse
Thanks, this Guide is very informative
Help with LG D722
I'm using LG D722 phone and I somehow unlocked bootloader and installed twrp recovery. I backed up Lollipop that's what I'm using and i want to restore custom ROM
I know I need to install Google Apps after installing Custom ROM. But Do I also need to install Modem files on my device ? Because I can't find them on XDA Forums. Please give me a link or something. The help is not just appreciated but seriously needed.
Success. Thanks
Hello, I walk testing one recovery but I'm booting before flashing, the question is, will the recovery feel same when booted vs flashed? I've booted and used to flash a pair of zips but felt very laggy and bugged although did the work right. Thanks
Edit: solved, tried myself
Sent from my SHIELD Tablet K1 using XDA-Developers mobile app
http://forum.xda-developers.com/showthread.php?t=872128&page=2
Hey TF owners,
For anyone looking for a way to mount their Transformer to Linux Mint, I wrote a script to automate the process of configuring your machine to allow you to browse/modify files on the tablet's SSD. This will probably also work on Ubuntu, but I have only so far tested it on Linux Mint.
Download the attached file, and run it.
Edit: Connect your Transformer to your PC before running.
Edit 2: You only need to run this script once - not every time you connect the tablet to your PC.
Hit the thanks button/comment if this worked for you. If not, also comment and I/someone will probably help you out. Also, if anyone tests it on Ubuntu successfully, be sure to comment and let people know.
Note: All configuration files are backed up in the script before changes are made. You can always revert safely.
I'll throw in the ever so popular "use at your own risk" for safe measure.
Cheers.
June 29: Updated script uploaded.
-Cleaner
-Removes an unnecessary comment pushed into fstab in the previous script
-Already executable. Just run it. [Thanks MagnusRagnarok for the idea]
-Packed in 7z from Linux Mint this time as opposed to in zip format from the TF, for [hopefully] universal accessibility.
-md5sum 615f2bfa820ee9ac8ea2c967149a2f03 TransformerMount2.7z
ok so maybe a stupid question, but does my tf need to be rooted to try this? also if you can create an automated script to install a linux distro you think it would be possible for you to create a script to root?? btw any idea on what actually works? can the tegra 2 run with compiz??
0lddirtypaki said:
ok so maybe a stupid question, but does my tf need to be rooted to try this? also if you can create an automated script to install a linux distro you think it would be possible for you to create a script to root?? btw any idea on what actually works? can the tegra 2 run with compiz??
Click to expand...
Click to collapse
I thin you've misunderstood the intention of the OP.
It was to be able to mount your Transformer under Linux and be able to read/write the files stored on the Transformer's internal storage. Not to actually install a full blown Linux Distro on your Transformer.
Wow, talk about reading before posting.
Sent from my Transformer TF101 using XDA Premium App
only on linux mint--
does it work on ubuntu?
Yes, this works perfectly on ubuntu
I have a problem extracting the zip file with Ubuntu 10.10
Do I need an alternate unzip program? If so please specify. I do not run MS products.
Error:
7-Zip 9.04 beta Copyright (c) 1999-2009 Igor Pavlov 2009-05-30
p7zip Version 9.04 (locale=en_CA.UTF-8,Utf16=on,HugeFiles=on,4 CPUs)
Processing archive: /tmp/TransformerMount.zip
Extracting TransformerMount.bash Unsupported Method
Sub items Errors: 1
I can extract it with 7zip on Windows on the work computer, and with both Explorer and AndroZip on the TF without issue.
Sent from my Milestone using XDA App
Acer Mod of the script
I'm trying to edit the file for use with an Acer Iconia. So far everything works but the modifying of the android.rules file. You see, it doesn't exist on my laptop (mint 11) in the directory the script looks at nor is there an android.rules file in lib/udev/rules.d. While I could probably write a rules file and make it work, I'd like to know where it comes from and maybe discover why it does not exist on my system. Anyone have any ideas? Also - rootblock - if I can get this to work would you object to my posting it in the Iconia forum? Thanks!
UPDATE:
Creating the file worked fine. Any reason to edit the script to check if the file exists and create it if it doe not or am I the exception to the rule? i.e. Would most users have it there in the first place?
3DSammy said:
I have a problem extracting the zip file with Ubuntu 10.10
Do I need an alternate unzip program? If so please specify. I do not run MS products.
Error:
7-Zip 9.04 beta Copyright (c) 1999-2009 Igor Pavlov 2009-05-30
p7zip Version 9.04 (locale=en_CA.UTF-8,Utf16=on,HugeFiles=on,4 CPUs)
Processing archive: /tmp/TransformerMount.zip
Extracting TransformerMount.bash Unsupported Method
Sub items Errors: 1
Click to expand...
Click to collapse
Probably a bad download. And you could also try file-roller to open it (I think its installed by default, it is on Debian/Gentoo)
Tortel1210 said:
Probably a bad download
Click to expand...
Click to collapse
I installed the "p7zip" deb, re-downloaded a few times with Firefox and even tried wget. Each time I get the same error result. I was more interested in examining the bash file as I do not have a TF yet. Oh well not a big deal.
3DSammy said:
I have a problem extracting the zip file with Ubuntu 10.10
Do I need an alternate unzip program? If so please specify. I do not run MS products.
Error:
7-Zip 9.04 beta Copyright (c) 1999-2009 Igor Pavlov 2009-05-30
p7zip Version 9.04 (locale=en_CA.UTF-8,Utf16=on,HugeFiles=on,4 CPUs)
Processing archive: /tmp/TransformerMount.zip
Extracting TransformerMount.bash Unsupported Method
Sub items Errors: 1
Click to expand...
Click to collapse
Had the same issue with Archive manager - Xarchiver worked, however.
ubuntu & Asus transformer
If anyone having a problem with mtpfs on ubuntu especially version 10.4 ( segfault problem which prevents from mounting the TF), use newer version of mtpfs in the link below.
http://pkgs.org/download/debian-wheezy/debian-main-i386/mtpfs_0.9-3_i386.deb.html.
1. install the package
ubuntu> sudo dpkg -i mtpfs_0.9-3_i386.deb
2. Then run rootblock script if you did not do it.
just wondering, would this have any effect for the adb connections ? My ubuntu cannot find the transformer from adb but could mount it just find
Try This....
anyone having issues try one of the following extensions.. tar.gz would be my first suggestion for those using ubuntu like myself. i also took the liberty of changing the perms to exe on the script before i compressed all these so now all you need to do is
1.download the extension pack i upped
(find the one that works for you)
2.open file
3.execute
*i also tossed the edited script in the pack for anyone who cannot get it to open.
fyi; ark also worked for me to access the file from the op, while my 7z kept erroring out.
ari197 said:
just wondering, would this have any effect for the adb connections ? My ubuntu cannot find the transformer from adb but could mount it just find
Click to expand...
Click to collapse
I can access the TF with adb just fine. Just cd to the android-sdk-linux_x86/platform-tools folder containing adb and run:
Code:
./adb devices
or
Code:
./adb shell
if that folder isn't already configured into your path. Works for me anyway.
I've been looking at this and trying to do it with udev instead, since I want the dynamic creation of the folder in /media. Mounting works great, but removing doesn't. So anyone with knowledge of udev rules is more than welcome to give me some hints. Here's the rules so far:
Code:
See below...
The command run when removing works if I enter it as root in a terminal, so it seems to me that it's either not run when removing or it's failing somehow when run from udev. Edit: I've figured out that it's not run at all. Looking into it...
Also, hint for those who follow the manual instructions you could also get the necessary permissions through Users and Groups instead of editing the groups file. You still have to edit /etc/fuse.conf to allow other though.
These are instructions for automatically mounting and unmounting your pad (not keyboard!). This will create (when plugged in and detected) and remove (when unplugged) the Transformer directory under /media, so that the experience is more in line with other USB devices.
For those of you who already have run the script in the first post, you need to do some cleanup. Edit /etc/fstab and /etc/udev/rules.d/51-android.rules and remove the lines which the script created. Which lines in fstab should be straight forward, and in 51-android.rules look for rows that either have no idVendor set or has it set to 0b05. If unsure, post here FIRST before making changes!
This is the content of /etc/udev/rules.d/51-android.rules:
Code:
ACTION=="add", SUBSYSTEM=="usb", ENV{ID_MODEL}=="MTP", ENV{ID_MODEL_ID}=="4e0f", MODE="0666", RUN+="/bin/bash -c 'mkdir -p /media/Transformer && mtpfs /media/Transformer -o allow_other'"
ACTION=="remove", SUBSYSTEM=="usb", ENV{ID_MODEL}=="MTP", ENV{ID_MODEL_ID}=="4e0f", RUN+="/bin/bash -c 'fusermount -u /media/Transformer && rmdir /media/Transformer'"
If you have other Android devices you may or may not have other lines here too. If so, just add these two lines to the end of the file. My Transformer is bought in Sweden so if things don't work for you, maybe there's another idProduct/ID_MODEL_ID out there? Check with lsusb when your pad is plugged in, the vendor (xxxx) and product (yyyy) ID is [xxxx:yyyy] on the line that says ASUSTek Computer Inc. For my pad, the productID/ID_MODEL_ID is 4e0f.
You need to uncomment allow_other in /etc/fuse.conf and add your user to the fuse group (preferably via Users and Groups) apart from adding the above two lines to your 51-android.rules:
Start Users and Groups, choose your user and press Advanced settings. Under the tab User Privileges you should mark Mount user-space filesystems (FUSE).
Open and edit /etc/fuse.conf (see below on how to use nano). Uncomment user_allow_other in the end (remove the # at the beginning of the line).
After this you should reboot your computer. This will have two effects: The udev rules will be reloaded so the changes apply, and your user will have the necessary privileges granted.
Now you can try to plug in your pad and see if it shows up under /media. Give it some time, it takes a while. (Approx. 30 seconds for me.)
A note on editing files from the terminal window
When editing files from the terminal I always use nano. The command is (if opening a file that requires super user rights):
sudo nano [path-to-file]
The editing is straightforward, works just like any other text editor. When you're finished, press Ctrl+X (Exit) and answer the question with Y (if your system is in english that is) if you want to overwrite the earlier file.
Problems?
If you have ADB activated you could try rmbell's udev rules. This removes the match ID_MODEL == MTP and changes the productID to 4e1f. The productID changes depending on what functions are activated, as discussed in this post by ritterkeks. If you want the pad to be mounted with and without ADB activated, you can add all four rules.
If the udev rules doesn't work, run this command in the terminal and see what happens when you plug the pad in:
udevadm monitor --property --udev
Exit with Ctrl+C. Are the values the same as in the udev rules you're using? If not, change accordingly or deactivate some function which has made the productID change.
"unable to mount location" error
I'm getting an error that reads "Unable to mount location"
Then:
fusermount: failed to open /etc/fuse.conf: Permission denied
fusermount: option allow_other only allowed if 'user_allow_other' is set in /etc/fuse.conf
I'm a monkey in a spaceship when it comes to some of this stuff Any idea what I should do (in layman's terms)?
All help appreciated!
I'm not sure if your problem is from the script in the first post or my instructions. But as the message says you need to edit fuse.conf. Also, you need to be a member of the FUSE group.
Open and edit fuse.conf with this command in a terminal:
sudo nano /etc/fuse.conf
Uncomment (remove the #) user_allow_other in the end, exit with Ctrl+X and save with Y.
Start Users and Groups, choose your user and press Advanced settings. Under the tab User Privileges you should mark Mount user-space filesystems (FUSE). I believe that you need to reboot after this change, otherwise the necessary privileges hasn't kicked in.
Try it and let me know
Hey-
I was wondering if I could get some help and feedback on a script I conceived to help 4.2 multi-user tree structure to work with pre 4.2 backups (Device, ROMs, Recoveries, Nandroids, Titaniums). Can one of you guru's (_that, becomingx, etc.) chime in and let me know if this seems logical and a good solution, what syntax errors I have, and partially test the theory and code as I am still on 4.1 and locked.
Assuming you have no stock /*/0 directories this script finds all instances of /*/0 (created from the 4.2 multi-user tree structure). /* is "the parent directory" and /*/0 is the "nested directory". First it backs up the parent directory then copies the nested directory (overwrites) into their parent directory. It also combines the backup and the parent directory in the parent directory at the end. This script assumes the user to be single-nested and after running it allows pre-4.2 backups to find their data and targets for restoration. Maybe its OK to combine before the restoration, or after, or not at all? Please give me your feedback on this and don't beat me up too hard as this is my first script with a variable and an array.
Code:
#!/system/bin/sh
nests=( grep ! /*/0 )
for NEST in "${nests[@]}"
do
mkdir /Removable/MicroSD/$NEST_bak
cp -r /$NEST /Removable/MicroSD/$NEST_bak
cp -rf /$NEST/0 /$NEST
#[Restore Pre-4.2 backups]
cp /Removable/MicroSD/$NEST_bak/*.* /$NEST
#[Backup in 4.2]
rm -rf /Removable/MicroSD/$NEST_bak
done
[Edit] Yup, this script needs some serious help. The first line doesn't even work. But when you type it as a command from the prompt it does what I'm looking to capture. How can I put this output in an array?
Code:
grep ! /*/0
Why after running the code above does my prompt which was "[email protected]: #" now show "1|[email protected]: #"? When I was trying to debug the script I even got a 2 and 3|[email protected]: #" Are these some kind of grep shells?
I've now read your post twice, and I still have no idea what you want to do - neither from the script itself nor from the textual description. The confusion starts with the fact that I have no "0" directories on my MicroSD card.
The first step in software development is always to clearly define the problem that should be solved by the software. As long as I don't understand what you want to do, I can't help you with the script - except maybe a hint: "grep" searches for text inside files, "find" searches for files or directories.
Why after running the code above does my prompt which was "[email protected]: #" now show "1|[email protected]: #"? When I was trying to debug the script I even got a 2 and 3|[email protected]: #" Are these some kind of grep shells?
Click to expand...
Click to collapse
The number is the last exit code from the previous command. It indicates that something went wrong.
_that said:
I've now read your post twice, and I still have no idea what you want to do - neither from the script itself nor from the textual description. The confusion starts with the fact that I have no "0" directories on my MicroSD card.
Click to expand...
Click to collapse
No, but you do have some in `/storage/emulated' and `/mnt/shell/emulated' , which I *think* might be what elfaure is referring to (confirm?).
The first step in software development is always to clearly define the problem that should be solved by the software. As long as I don't understand what you want to do, I can't help you with the script - except maybe a hint: "grep" searches for text inside files, "find" searches for files or directories.
Click to expand...
Click to collapse
True words indeed. Although, just telling someone what you want to do and having them show you how to do it, or having them do it for you, is never as much fun as trying to do it for yourself first.
elfaure said:
Hey-
I was wondering if I could get some help and feedback on a script I conceived to help 4.2 multi-user tree structure to work with pre 4.2 backups (Device, ROMs, Recoveries, Nandroids, Titaniums). Can one of you guru's (_that, becomingx, etc.) chime in and let me know if this seems logical and a good solution, what syntax errors I have, and partially test the theory and code as I am still on 4.1 and locked.
Assuming you have no stock /*/0 directories this script finds all instances of /*/0 (created from the 4.2 multi-user tree structure). /* is "the parent directory" and /*/0 is the "nested directory". First it backs up the parent directory then copies the nested directory (overwrites) into their parent directory. It also combines the backup and the parent directory in the parent directory at the end. This script assumes the user to be single-nested and after running it allows pre-4.2 backups to find their data and targets for restoration. Maybe its OK to combine before the restoration, or after, or not at all? Please give me your feedback on this and don't beat me up too hard as this is my first script with a variable and an array.
Code:
#!/system/bin/sh
nests=( grep ! /*/0 )
for NEST in "${nests[@]}"
do
mkdir /Removable/MicroSD/$NEST_bak
cp -r /$NEST /Removable/MicroSD/$NEST_bak
cp -rf /$NEST/0 /$NEST
#[Restore Pre-4.2 backups]
cp /Removable/MicroSD/$NEST_bak/*.* /$NEST
#[Backup in 4.2]
rm -rf /Removable/MicroSD/$NEST_bak
done
Click to expand...
Click to collapse
This is indeed a bit confusing. First I need to know what you're expecting `(grep ! /*/0)' to evaluate to before I can comment on the rest of the code.
[Edit] Yup, this script needs some serious help. The first line doesn't even work. But when you type it as a command from the prompt it does what I'm looking to capture.
Click to expand...
Click to collapse
To capture the output of a command into a variable, you need a dollar sign in front of the opening parenthesis, i.e.:
Code:
nests=$(grep ! /*/0)
But, as _that mentioned, the `grep' call probably isn't the right one to use here. `find' can surely do what you want, but requires busybox to be installed and usually needs to have a bunch of options supplied to it to make sure it's giving you exactly what you want and expect. A simple `ls' command might be all that's needed.
How can I put this output in an array?
Click to expand...
Click to collapse
I, and most other people based on the code I've seen, don't use arrays much in shell scripts. Usually a value separated list is used instead, where the separator value is a space, tab, or newline. Take the example:
Code:
ROOT_LISTING=$(ls /)
for OBJ in $ROOT_LISTING; do
...
done
When the variable $ROOT_LISTING gets expanded at execution time it winds up looking like:
Code:
for OBJ in Removable acct cache [snipped for brevity]; do
and so the `for' loop will iterate through each value after the `in' keyword that is seperated from the next one by a space, tab, or newline. (If we have files, directories, etc. with spaces (possible), tabs (unlikely), or newlines (also unlikely) in the name, we have to be trickier, but I won't get into that here. )
Hopefully this helps. If there's anything else technical that I can yammer on about for the betterment of your understanding, just holler. :good:
Hi Guys-
Thanks for the reply. What service! I simply call for the two guys I need most and like rubbing a magic lamp my genies appear.
When _that reads it twice and still has no clue what you are trying to do you know you need some serious schooling. That's why I'm here - to listen twice as often as I speak and learn something useful.
So here's what I am trying to do. JB 4.2 implemented a radical depart from previous Android versions to the directory tree structure for multi-users as you know, similar to the way Windows uses user profiles to separate users desktops, accessible installed apps, etc. This new structure created /0 subdirectories for certain directories like /sdcard and /sdcard/0 (/data/media and /data/media/0, /clockworkmod and /clockworkmod/0) and others. Playing with grep I discovered I could find all instances of any directory containing a /0 subdirectory (pair). "Find" seems a better approach than "grep" and works exactly the same with no fancy options required.
Code:
find */0
For these directory pairs I'll call them from the above output, the data that was in /directory in 4.1 is now located and pointed to in /directory/0 in 4.2. I figured if I could find all these pairs, and copy /directory/0 into /directory (after backing up /directory to SD) then 4.1 backups looking for data in /directory could now find their data and targets. Then I could copy the SD backup of /directory into /directory (now overwritten by /directory/0) to merge everything into a single folder. But after thinking about this again, this is incorrect. What I meant to do at this step is copy all /0 subdirectories of a given /directory/0 into that folder [ /directory/0/0 into /directory/0 and directory/0/0/0 into /directory/0 and /directory/0/0/0/0... into /directory/0 ] to combine all these sub-nested directories into a single /0 directory. Deep subnesting causes by crack flashing custom ROMs over and over on JB 4.2. This is the concept and I'm trying to implement a script to do it.
So I will attempt to replace grep with find and the array with a variable value space separated list and see what I come up with. Becomingx, you are right about wanting to use my brain a bit to figure it out on my own, even if it sends me down a one-way road to a dead end. If I learned something in the process then its all good and I can always ask for directions at the locked gate if I arrive there, but even with 4 flat tires and a broken axle I'm still moving (forward hopefully) as long as there's still road to travel on.
Thks
So you want to write a script to downgrade from 4.2 to 4.1?
Test new avitar
How do you delete a post? Under Edit/Delete I only find Edit??
_that said:
So you want to write a script to downgrade from 4.2 to 4.1?
Click to expand...
Click to collapse
No, I want to write a script that lets you restore a pre 4.2 backup (Nandroid, Titanium, Recovery, ROM) on 4.2 without having to move/copy files.
elfaure said:
No, I want to write a script that lets you restore a pre 4.2 backup (Nandroid, Titanium, Recovery, ROM) on 4.2 without having to move/copy files.
Click to expand...
Click to collapse
Are you sure that this is not already handled by TWRP, or by TB?
Recovery and ROM themselves are not affected by the /0 move in /data anyway.
Thanks becomingx, getting somewhere now but I still have problems.
When I type this at the terminal I get what i am looking for as output
Code:
su
cd /
find */0
Output: (These are test directories I created)
data/0
sdcard/0
sdcard/0/0
But when I run this script, the above output is repeated 3 times? Why is that?? One for each file system /(rootfs), /data, and /sdcard? How can I rewrite the script to produce the same output as from the terminal?
Code:
#!/system/bin/sh
cd /
NEST=$(find */0)
for OBJ in $NEST; do
echo "$NEST"
done
_that said:
Are you sure that this is not already handled by TWRP, or by TB?
Recovery and ROM themselves are not affected by the /0 move in /data anyway.
Click to expand...
Click to collapse
Long story short, yes if you had all the latest and greatest installed before you upgraded to 4.2 then its a transparant issue. But if you're already "nested" because you used an older custom recovery and factory reset a few times to crack flash some some 4.2 ROMs or need to recover to a previous Android version then there is a use for this script. If I can learn how to script variables and help some nested folks out at the same time then _that's what I call a win-win. I'm not on 4.2 nor do I plan on going there anytime soon so this won't help me out less what I learn by doing it, although it is interesting and challenging to try to implement an automated solution for. Plus I'm like you guys, I just really enjoy rooted Android and helping people with it when I can (within my very limited but expanding skill set).
By the way, what is the name and /data path to that special file?
****************************************************************************************************
http://androidforums.com/verizon-ga...t/649940-4-2-sdcard-sdcard-0-observation.html
http://androidforums.com/verizon-ga...y-bean-roms-edited-3-24-13-a.html#post5796630
Quoted from Androidspin.com -
"With Android 4.2, Google introduced multiple users as a new feature. In order to accommodate multiple users, Google is now giving each user a their own folder for storage. If you upgraded to 4.2 from 4.1, then the 4.2 ROM will look for a certain file in /data to determine whether it needs to migrate all of your files to the new multi-user data structure. By default, 4.2 migrates all of /data/media to /data/media/0.
A problem arose though with custom recoveries. A custom recovery retains the /data/media folder during a factory reset. When you factory reset and then boot a 4.2 ROM again, the 4.2 ROM will migrate everything in /data/media again. It will migrate your files every time you factory reset. This multiple migration is what resulted in some people having their files moved to /sdcard/0 or even /sdcard/0/0 etc.
In TWRP 2.3.2.0 we have corrected this problem by ensuring that we do not delete the special file during a factory reset. However, if ended up having your files upgraded you will need to move or merge them back into /sdcard. Also, if you have moved your TWRP folder from /data/media/0 to /data/media so that you could restore backups while using prior TWRP versions, you may now need to move the TWRP folder back into /data/media/0.
As a special note, if you restore a backup to a prior version of Android, you may have to move your files out of /data/media/0 and into /data/media to be able to see them again."
elfaure said:
TBut when I run this script, the above output is repeated 3 times? Why is that?? One for each file system /(rootfs), /data, and /sdcard? How can I write the script to produce the same output as from the terminal?
Code:
#!/system/bin/sh
cd /
NEST=$(find */0)
for OBJ in $NEST; do
echo "$NEST"
done
Click to expand...
Click to collapse
Read your script - for each item in $NEST you output all of $NEST instead of the single item $OBJ.
_that said:
Read your script - for each item in $NEST you output all of $NEST instead of the single item $OBJ.
Click to expand...
Click to collapse
Ah ha. Lost sight of the fact that a multi-object variable really behaves like an array and you can call its objects as independent variables (syntax wise; I thought that was what I was doing with echo $NEST). Variables in a variable. That's why I started with an array. Thanks.
Code:
#!/system/bin/sh
cd /
NEST=$(find */0)
for OBJ in $NEST; do
echo "$OBJ"
done
Output:
data/0
sdcard/0
sdcard/0/0
New Questions:
How can I strip off all the "/0's" from each object variable and store it in a new mutil-variable until there are no more "/0's to strip off and consolidate duplicates? The desired result here would be VAR=$(data, sdcard).
If two or more object variables have the same root directory name, how can I select only the object variable with the most /0's between two variables (sdcard/0 and sdcard/0/0; I would want only the latter) then store those object variable in a new variable including all other object variables? The desired result here would be VAR1=$(data/0, sdcard/0/0)
Code:
#!/system/bin/sh
nests=( grep ! /*/0 )
for NEST in "${nests[@]}"
do
mkdir /Removable/MicroSD/$NEST_bak
cp -r /$NEST /Removable/MicroSD/$NEST_bak
cp -rf /$NEST/0 /$NEST
#[Restore Pre-4.2 backups]
cp /Removable/MicroSD/$NEST_bak/*.* /$NEST
#[Backup in 4.2]
rm -rf /Removable/MicroSD/$NEST_bak
done
becomingx said:
To capture the output of a command into a variable, you need a dollar sign in front of the opening parenthesis, i.e.:
Code:
nests=$(grep ! /*/0)
[snipped]
I, and most other people based on the code I've seen, don't use arrays much in shell scripts. Usually a value separated list is used instead...[snipped]
Click to expand...
Click to collapse
"nests" in my original code here refers to an array not a variable. Assuming that, is the syntax correct (for reference)? I like the multi-item(object) variable value separated list you showed me and _that corrected my use of and will use that instead for this script.
elfaure said:
For these directory pairs I'll call them from the above output, the data that was in /directory in 4.1 is now located and pointed to in /directory/0 in 4.2. I figured if I could find all these pairs, and copy /directory/0 into /directory (after backing up /directory to SD) then 4.1 backups looking for data in /directory could now find their data and targets. Then I could copy the SD backup of /directory into /directory (now overwritten by /directory/0) to merge everything into a single folder. But after thinking about this again, this is incorrect. What I meant to do at this step is copy all /0 subdirectories of a given /directory/0 into that folder [ /directory/0/0 into /directory/0 and directory/0/0/0 into /directory/0 and /directory/0/0/0/0... into /directory/0 ] to combine all these sub-nested directories into a single /0 directory. Deep subnesting causes by crack flashing custom ROMs over and over on JB 4.2. This is the concept and I'm trying to implement a script to do it.
Click to expand...
Click to collapse
Wow! This is very messy, no wonder you're trying to automate the cleanup.
So I will attempt to replace grep with find and the array with a variable value space separated list and see what I come up with. Becomingx, you are right about wanting to use my brain a bit to figure it out on my own, even if it sends me down a one-way road to a dead end. If I learned something in the process then its all good and I can always ask for directions at the locked gate if I arrive there, but even with 4 flat tires and a broken axle I'm still moving (forward hopefully) as long as there's still road to travel on.
Click to expand...
Click to collapse
Love the analogy here :laugh:
elfaure said:
By the way, what is the name and /data path to that special file?
Click to expand...
Click to collapse
Looks to be `/data/.layout_version' [ref].
elfaure said:
Code:
#!/system/bin/sh
cd /
NEST=$(find */0)
for OBJ in $NEST; do
echo "$OBJ"
done
Output:
data/0
sdcard/0
sdcard/0/0
New Questions:
How can I strip off all the "/0's" from each object variable and store it in a new mutil-variable until there are no more "/0's to strip off and consolidate duplicates? The desired result here would be VAR=$(data, sdcard).
Click to expand...
Click to collapse
If we're going full steam ahead with the requirement of Busybox being installed, then this is pretty easy:
Code:
VAR="$(find */0 | sed -e 's!/0!!g' | sort -u)"
Sed is our Stream EDitor. The option `-e' tells sed that what follows is a sed script.
The script itself (s!/0!!g) breaks down like this:
* `s' means we are doing a substitution.
* The exclamation point (!) is just a delimeter; any character can be used. Typically a forward slash (/) is used, but since directory paths have forward slashes in them, we go with something else to make it easier to read. Otherwise we'd have to escape the forward slashes and it would look like this: s/\/0//g
* `/0' is what we are looking to match.
* Another exclamation point (!) indicates we are done with our "search" pattern and next begins our "replace" pattern.
* Since we are just looking to just get rid of all occurences of `/0', our replacement pattern is literally nothing.
* Another exclamation point (!) to indicate the end of the replacement pattern.
* Finally, `g' (for global) tells sed to keep applying the substitution until it no longer matches. This means a path like `/dir/0/0/0' gets each `/0' stripped away one at a time until there are none left.
The last command sorts our listing so that the `-u' (for unique) option can be applied to it, which removes duplicate lines.
If two or more object variables have the same root directory name, how can I select only the object variable with the most /0's between two variables (sdcard/0 and sdcard/0/0; I would want only the latter) then store those object variable in a new variable including all other object variables? The desired result here would be VAR1=$(data/0, sdcard/0/0)
Click to expand...
Click to collapse
The easiest way to do this is just check for the presence of a `0' dir at each level. If one exists then there's another level of nesting below us and we ignore the current level:
Code:
VAR1=""
for i in $(find */0); do
if [ ! -d $i/0 ]; then
VAR1="$VAR1 $i"
fi
done
Wow! Thanks!! But now I'm suffering from cognitive dissonance (dis-sed-ance). I knew it would require either find, grep, awk, or sed but using those commands without having any grip on regex is nearly impossible. Can you point me to a good resource for learning Android regex or is any GNU/Linux resource valid? Is this a good one?
http://www.linux.org/article/view/introduction-to-regular-expressions-within-a-shell
elfaure said:
I'm not on 4.2 nor do I plan on going there anytime soon so this won't help me out less what I learn by doing it
Click to expand...
Click to collapse
So does that mean you don't have any "0" directories in your /sdcard right now, and you are doing all this just for fun?
At least, after reading your additional material, I am now beginning to understand the problem.
However I don't understand how you get any useful output from "find */0" - I get either "No such file or directory", or a listing of thousands of files, depending on where I start this.
elfaure said:
Can you point me to a good resource for learning Android regex or is any GNU/Linux resource valid?
Click to expand...
Click to collapse
The nice thing with regular expressions is that the basics are the same everywhere.
But I don't know if you even need such powerful tools... Correct me if I am wrong, but your script should convert this structure:
/data/media/0
/data/media/0/stuff1
/data/media/0/0
/data/media/0/0/stuff2
/data/media/0/0/0
/data/media/0/0/0/stuff3
to
/data/media/0
/data/media/0/stuff1
/data/media/0/stuff2
/data/media/0/stuff3
?
So you'd basically need to run this inside /data/media/0:
1. If there is no subdirectory named "0", there is nothing to do, and we can exit
2. If there is a subdirectory named "0", move everything from inside one level out
2a. how do you want to handle conflicts, if the file or directory you want to move outside already exists in the parent directory?
3. go to step 1
[Reply to _that's last post. Getting lazy, I'm at lunch...]
Here is my output from
Code:
find */0
[email protected]:/ $ su
[email protected]:/ # find */0
data/0
sdcard/0
sdcard/0/0
[email protected]:/ # exit
[email protected]:/ $ find */0
data/0
find: data/0: Permission denied
sdcard/0
sdcard/0/0
1|[email protected]:/ $
I'm not sure about the structure I am looking for until I get some output from this code run on a 4.2 device with nested /0's so I can see all of them and their variations. I also want to see what happens to subsequent user directories nested starting with /data/media/10 (second user) and /data/media/11 (third user) and how they nest in comparison.
The only /0 directories that I have on my device were created by me to test this script. I am still on 4.1 and this is a 4.2 only issue so as you state its "just for fun" or rather "for the fun of learning" but at least its not a "hello world" script that does nothing useful. I'm hoping to automate someone's cleanup after installing 4.2 with this, maybe my own at some point, if required.
Here's some more info about the issue:
http://teamw.in/DataMedia
ps-I just discovered the equivalent to the stock browser "about:debug" for Chrome is "about:flags" which brings up an extensive list of experimental settings. I enabled all that were GPU and speed related and its a marked improvement (it feels 25-75% faster). With a 100MB Chrome cache I can have about 20 tabs open at the same time now and its still fast and snappy.
Not sure if this will work or not, but if you want to try to retain single user mode in 4.2 you can try this:
http://androidforums.com/verizon-ga...y-bean-roms-edited-3-24-13-a.html#post5806236
If anyone has a copy of the .layout_version file, please post it or a link to it so I can check it out.
Thks
becomingx said:
Wow! This is very messy, no wonder you're trying to automate the cleanup.
Love the analogy here :laugh:
Looks to be `/data/.layout_version' [ref].
If we're going full steam ahead with the requirement of Busybox being installed, then this is pretty easy:
Code:
VAR="$(find */0 | sed -e 's!/0!!g' | sort -u)"
Sed is our Stream EDitor. The option `-e' tells sed that what follows is a sed script.
The script itself (s!/0!!g) breaks down like this:
* `s' means we are doing a substitution.
* The exclamation point (!) is just a delimeter; any character can be used. Typically a forward slash (/) is used, but since directory paths have forward slashes in them, we go with something else to make it easier to read. Otherwise we'd have to escape the forward slashes and it would look like this: s/\/0//g
* `/0' is what we are looking to match.
* Another exclamation point (!) indicates we are done with our "search" pattern and next begins our "replace" pattern.
* Since we are just looking to just get rid of all occurences of `/0', our replacement pattern is literally nothing.
* Another exclamation point (!) to indicate the end of the replacement pattern.
* Finally, `g' (for global) tells sed to keep applying the substitution until it no longer matches. This means a path like `/dir/0/0/0' gets each `/0' stripped away one at a time until there are none left.
The last command sorts our listing so that the `-u' (for unique) option can be applied to it, which removes duplicate lines.
The easiest way to do this is just check for the presence of a `0' dir at each level. If one exists then there's another level of nesting below us and we ignore the current level:
Code:
VAR1=""
for i in $(find */0); do
if [ ! -d $i/0 ]; then
VAR1="$VAR1 $i"
fi
done
Click to expand...
Click to collapse
Thanks again for your help and explanations. I find it amazing what a few (not so) simple lines of code can do with a complex task. Learning regex will take me until next year so for now I will go blindly forward with my plan. The next step would be to use BOTH of these variables in some call statement like [ ] to automate the process of backing up and moving data around. And combining it all into a script here it is below. Is the syntax in the main block I added correct?
Code:
#!/system/bin/sh
VAR="$(find */0 | sed -e 's!/0!!g' | sort -u)"
VAR1=""
for i in $(find */0); do
if [ ! -d $i/0 ]; then
VAR1="$VAR1 $i"
fi
done
for OBJ in $VAR and OBJ1 in $VAR1; do
#Backup $OBJ to SD
mkdir /Removable/MicroSD/$OBJ_BAK
cp -r /$OBJ /Removable/MicroSD/$OBJ_BAK
#Over write $OBJ with $OBJ1
cp -rf /$OBJ1 /$OBJ
#Merge backup and $OBJ
cp /Removable/MicroSD/$OBJ_BAK/*.* /$OBJ
#Remove $OBJ backup
rm -rf /Removable/MicroSD/$OBJ_BAK
done
elfaure said:
Wow! Thanks!! But now I'm suffering from cognitive dissonance (dis-sed-ance). I knew it would require either find, grep, awk, or sed but using those commands without having any grip on regex is nearly impossible. Can you point me to a good resource for learning Android regex or is any GNU/Linux resource valid? Is this a good one?
http://www.linux.org/article/view/introduction-to-regular-expressions-within-a-shell
Click to expand...
Click to collapse
lolz. Any resource on regexes should be applicable, just know that there are some small differences between the three main dialects (basic, extended, and perl). If you've got money to spend, Mastering Regular Expressions is considered *the* book to own on the subject. Also good is this pocket reference for sed and awk, which is a bit cheaper. I've used my copy so much the spine has completely gone out and it's just a collection of loose pages inside the cover now!
---------- Post added at 11:29 AM ---------- Previous post was at 11:00 AM ----------
_that said:
So does that mean you don't have any "0" directories in your /sdcard right now, and you are doing all this just for fun?
At least, after reading your additional material, I am now beginning to understand the problem.
However I don't understand how you get any useful output from "find */0" - I get either "No such file or directory", or a listing of thousands of files, depending on where I start this.
Click to expand...
Click to collapse
This is what I was hinting at back in post #3.
Using `find' like this, the `*/0' will get expanded by the shell if there happens to exist at least one `SOMEDIR/0', which will result in `find' printing out every file/directory/etc. that exists under any and every `SOMEDIR/0'. Otherwise, if none exist, it will get passed to the `find' command as literally `*/0', which is where the "No such file or directory" comes from.
The proper way to do this is using a `find' option like `-name', to limit scope of what gets returned. Again, though, one still has to be careful because we could still get search matches that we don't want. Something like this might be a good starting point:
Code:
find -name '0' -type d
@elfaure: Try populating your self-created `0' directories with some files and directories, the output of `find */0' should become a bit surprising.
But I don't know if you even need such powerful tools... Correct me if I am wrong, but your script should convert this structure:
/data/media/0
/data/media/0/stuff1
/data/media/0/0
/data/media/0/0/stuff2
/data/media/0/0/0
/data/media/0/0/0/stuff3
to
/data/media/0
/data/media/0/stuff1
/data/media/0/stuff2
/data/media/0/stuff3
?
So you'd basically need to run this inside /data/media/0:
1. If there is no subdirectory named "0", there is nothing to do, and we can exit
2. If there is a subdirectory named "0", move everything from inside one level out
2a. how do you want to handle conflicts, if the file or directory you want to move outside already exists in the parent directory?
3. go to step 1
Click to expand...
Click to collapse
Seems simple enough, but need a little time to think about it...
---------- Post added at 11:31 AM ---------- Previous post was at 11:29 AM ----------
elfaure said:
If anyone has a copy of the .layout_version file, please post it or a link to it so I can check it out.
Thks
Click to expand...
Click to collapse
Mine just contains the number "2", nothing else, not even a newline.
---------- Post added at 11:43 AM ---------- Previous post was at 11:31 AM ----------
elfaure said:
Thanks again for your help and explanations. I find it amazing what a few (not so) simple lines of code can do with a complex task. Learning regex will take me until next year so for now I will go blindly forward with my plan. The next step would be to use BOTH of these variables in some call statement like [ ] to automate the process of backing up and moving data around. And combining it all into a script here it is below. Is the syntax in the main block I added correct?
Code:
#!/system/bin/sh
VAR="$(find */0 | sed -e 's!/0!!g' | sort -u)"
VAR1=""
for i in $(find */0); do
if [ ! -d $i/0 ]; then
VAR1="$VAR1 $i"
fi
done
for OBJ in $VAR and OBJ1 in $VAR1; do
#Backup $OBJ to SD
mkdir /Removable/MicroSD/$OBJ_BAK
cp -r /$OBJ /Removable/MicroSD/$OBJ_BAK
#Over write $OBJ with $OBJ1
cp -rf /$OBJ1 /$OBJ
#Merge backup and $OBJ
cp /Removable/MicroSD/$OBJ_BAK/*.* /$OBJ
#Remove $OBJ backup
rm -rf /Removable/MicroSD/$OBJ_BAK
done
Click to expand...
Click to collapse
Negatory, good buddy. Everthing after the `in' keyword till the semicolon gets treated as part of the (one and only) list. This would be a good place for two parallel arrays, but I suspect that might be overkill. Need a little time to think...
P.S. Never go blindly forward when working as user `root'. Much too dangerous.