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[HOW-TO]Set up Android SDK/ADB/Fastboot on Ubuntu Linux

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!!! :O​If 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?

[DEV] Apps2SD and Darchstar-2.1 ROM

The focus of this thread is to sort out the Apps2SD issue in cyanogenmod-darch 2.1 ROM (like the title says). Please do not post here unless it relates to this issue.
That being said, here is where I was at in the original darchstar 2.1 thread:
watzone69 said:
Taken from the instructions darchstar gave in the first post of his thread...
Code:
adb remount
adb push e2fsck /system/bin
adb shell
cd /system/bin
chmod a+x e2fsck
a2sd
reboot
First, the "chmod a+x e2fsck" command doesn't work for me (EDIT: I discovered that it WILL work in recovery mode). I had to use "chmod 777 e2fsck". After entering "a2sd" it gets enabled. After rebooting, apps2SD is NOT enabled anymore. I realized this by doing this test:
Code:
adb shell
cd /data/app
pwd
If your apps2sd is enabled, you will get "/system/sd/app" returned to you.
If you get "/data/app" returned instead then apps2sd is NOT enabled!
Click to expand...
Click to collapse
Gbhil then replied...
gbhil said:
After you restart, can you re-enable a2sd by running a2sd from a terminal as root?
If so, do all your apps still appear and are they usable?
If the above is true, try adding this to the end of gumbo.sh
Code:
su -C a2sd
for a quick fix.
Start a thread (to keep things less cluttered) about it and I'll help you guys dig into the boot image and see why it's not sticking.
Click to expand...
Click to collapse
So, I rebooted and tried to run "a2sd" from the android terminal but it spits out a long string of errors:
Code:
--- Checking ext filesystems
e2fsck 1.41.6 (30-May-2009)
ext2fs_check_if_mount: Can't check if filesystem is mounted due to missing mtab file while determining whether /dev/block/mmcblk0p2 is mounted.
/dev/block/mmcblk0p2: clean, 13/249856 files, 31387/499713 blocks
mount: permission denied. (are you root?)
chown: /system/sd: Read-only file system
chmod: /system/sd: Read-only file system
mkdir failed for /system/sd/app, Read-only file system
chown: /system/sd/app: No such file or directory
chmod: /system/sd/app: No such file or directory
cp: cannot create '/system/sd/app/android.tether.apk': No such file or directory
cp: cannot create '/system/sd/app/android.tether.usb.apk': No such file or directory
cp: cannot create '/system/sd/app/at.abraxas.mountusb.apk': No such file or directory...
(etc.)
...rm: cannot remove '/data/app/org.gmote.client.android.apk': Permission denied
rm: cannot remove '/data/app/org.hermit.substrate.apk': Permission denied
rm: cannot remove '/data/app/org.iplatform.android.apk': Permission denied
rm: cannot remove '/data/app/org.mikeyin.livewallpaper.apk': Permission denied
mkdir failed for /system/sd/app-private, Read-only file system
chown: /system/sd/app-private: No such file or directory
chmod: /system/sd/app-private: No such file or directory
cp: can't open '/data/app-private/com.android.aldiko.apk': Permission denied
cp: can't open '/data/app-private/com.protocol.x.su.fbs.apk': Permission denied
cp: can't open '/data/app-private/com.rerware.android.MyBackupPro.apk': Permission denied
rm: cannot remove '/data/app-private/com.android.aldiko.apk': Permission denied
rm: cannot remove '/data/app-private/com.protocol.x.su.fbs.apk': Permission denied
rm: cannot remove '/data/app-private/com.rerware.android.MyBackupPro.apk': Permission denied
ln: /data/app/app: Permission denied
ln: /data/app-private/app-private: Permission denied
+++ Apps-to-SD successfully enabled
So, there is no "app" or "app-private" in the "system/sd". Is a2sd supposed to generate those directories or are they supposed to be there before hand?
Anyway, the result is that I lose all of my shortcuts to the apps and market shows them as not installed even though they are.
BTW, I am not a dev or even that great at code or linux but I can usually pick stuff up fairly quickly. Just want to help fix this!
EDIT: The only thing I have found to work is to flash this kernel:
http://forum.xda-developers.com/showpost.php?p=5712377&postcount=1406
However, some people get stuck in a boot loop after flashing this.

Running into the same issues as Watzone so I can confirm that he is doing it correctly. =P

Here are all of the related commands that have been suggested whenever the question of apps2sd has come up in the darchstar 2.1 thread.
Code:
adb remount
adb shell
mkdir /system/sd
Code:
adb remount
adb shell
busybox --install /system/xbin
a2sd
Code:
cd C:\android-sdk-windows\tools
adb remount
adb shell
chown system.system /data/app
chmod 0771 /data/app
For the next command, boot into recovery and do the following:
Code:
adb shell
mount /system
exit
adb push e2fsck /system/bin
adb shell
cd /system/bin
chmod 777 e2fsck
Now, boot normally and go back to your CMD prompt...
Code:
adb remount
adb shell
a2sd
EDIT: In other threads I have seen the command...
Code:
apps2sd on
...used to enable apps2sd.
Doing all of these WILL allow the final "a2sd" command to enable (testing with the "pwd" command) but it all goes KAPUT after a reboot.

why it's not being enabled at boot time is because the init.rc isn't calling /system/etc/init.d/04apps2sd . I'll be sure that we fix that in my next release

And there you go.
It works here, but now I know why. I'm still using an old version of the boot image that looks for /system/bin/a2sd to load it, and an older version of the ROM. No sense in me to keep flashing fixes until I'm done tweaking the kernel. When darch says the kernel is good, then I'll catch up lol.
We might as well use this thread to learn to play with the boot image though, that is if you guys want to.

Awesome can't wait for the next release then! Lotsa apps out there calling out to me! Thanks guys =)

gbhil said:
We might as well use this thread to learn to play with the boot image though, that is if you guys want to.
Click to expand...
Click to collapse
You bet. It's about time I got my hands dirty.

I'm game let me know if you need me to test anything!

Cool deal. You need Linux to extract and compress the boot.img, and you need to be current with Perl and running jre5 or higher.
Ubuntu 9.04+ is set up out of the box, but any version can be made to work.
Then grab these files from Lox -
http://forum.xda-developers.com/attachment.php?attachmentid=231902&d=1254004933
http://forum.xda-developers.com/attachment.php?attachmentid=234040&d=1254622769
and extract them into your sdk/tools dir. (or any dir in your path)
get all that, then pick a boot.img from a rom and put it in a work folder.
Holler when you get that far, or if you have any q's.

I wanna learn myself. This should apply to mac os as well?

I have Mint on another machine. Gimme a bit to get caught up...

david279 said:
I wanna learn myself. This should apply to mac os as well?
Click to expand...
Click to collapse
Darwin might work. Never tried
watzone69 said:
I have Mint on another machine. Gimme a bit to get caught up...
Click to expand...
Click to collapse
np. I'm @work so going slow is better anyway lol.

ok i just ran the files in terminal. so i guess it might work.

I'm back
Inisde the work folder you dropped the boot.img into, run this from a term:
extract-kernel.pl boot.img
extract-ramdisk.pl boot.img
it will give you several files and a new directory. That dir is the unpacked ramdisk. The init.rc file is the one we're looking for. Open it with a Unicode editor and read it. It has it's own syntax, but it's almost like bash and not too hard to figure out. Hopefully you loaded a bootimg that has a2sd in it. Look near the bottom of the file for the a2sd start up line. It will have a2sd, apps2sd, a2sd004 or something like that. Once you find it so you can see the name used, search the rest of the file for that name.
Those lines will show you how a service gets declared and called at boot time.

I'm up and running now. I downloaded python 2.6.4. Do I need to install it or just extract it somewhere? Please forgive my linux noobness.
The other 2 zip files are extracted and in my tools folder. I'm getting the boot.img now.

idk if this will work as i too am a newb to android and the way they deal with the boot process is somewhat a bit different from what i'm used to, but heres a new boot.img if you guys want to flash it to see if apps2sd works. note, this is not a zip, remove that suffix.
to flash it to your phone just move the boot image to your sdcard then reboot into recovery. from there go into adb and mount your sdcard, then flash the new boot image.
Code:
adb shell
mount /sdcard
flash_image boot /sdcard/newBoot2.img
reboot
tell me if it fixes your apps2sd problem or not.

watzone69 said:
I'm up and running now. I downloaded python 2.6.4. Do I need to install it or just extract it somewhere? Please forgive my linux noobness.
The other 2 zip files are extracted and in my tools folder. I'm getting the boot.img now.
Click to expand...
Click to collapse
try it without doing anything to Python first....especially since I meant perl
Just try my last post and see if it works for ya. I'll edit my first post

gbhil said:
try it without doing anything to Python first....especially since I meant perl
Just try my last post and see if it works for ya. I'll edit my first post
Click to expand...
Click to collapse
Nope, I got "command not found" both times.

darchstar said:
idk if this will work as i too am a newb to android and the way they deal with the boot process is somewhat a bit different from what i'm used to, but heres a new boot.img if you guys want to flash it to see if apps2sd works. note, this is not a zip, remove that suffix.
to flash it to your phone just move the boot image to your sdcard then reboot into recovery. from there go into adb and mount your sdcard, then flash the new boot image.
Code:
adb shell
mount /sdcard
flash_image boot /sdcard/newBoot2.img
reboot
tell me if it fixes your apps2sd problem or not.
Click to expand...
Click to collapse
Thanks darchstar, I'll try that in a bit.

watzone69 said:
Nope, I got "command not found" both times.
Click to expand...
Click to collapse
you gotta make it executable
inside the directory with the perl scripts do this
Code:
chmod a+x ./

[HOWTO] Running debian via chroot on OO

This tutorial is based on this one for G1: http://www.saurik.com/id/10
Hi,
I'll show you how to run debian in chroot on our optimus one. It wont affect android in any way, and they can run simultaneously, side by side. You are only running bash from debian, not its kernel or any other low-level part. But you can use debian's programs.
Requirements
* Linux on your pc or in virtual machine
You need debootstrap to make debian image, so you need debian distro (maybe in *buntu it is too, but I am not sure). You dont need GUI, bash is all you need.
* Busybox(-> rooted phone)
Most custom roms comes with busybox, I am not sure how about store ROM.
* Terminal emulator on phone and/or ADB
I suggest you to make sure you have adb, because you dont wanna write it all on small touch keyboard.
Some knowledge about linux systems
If you are following this tutorial only because you want to /flex on your friends and you dont know anything about linux, then you really _should_ stop reading this tutorial.
I also recommend you to have a2sd, so we can put debian image on its partition, when it is on sdcard main partition, it _may_ cause some problems with usb mass storage.
So, lets start.
1. Getting debian image
Boot into debian and get bootstrap tool:
Code:
apt-get install debootstrap
Now, create an empty disk image, I'd say minimum size is about 150mb, but I recommend you use more:
Code:
dd if=/dev/zero of=debian.img seek=*size_in_bytes* bs=1 count=1
You need to create ext filesystem in image with this tool(you can try it with "sudo" if you have problems):
Code:
mke2fs -F debian.img
Image is ready now, now lets mount it so we can install debian into it:
Code:
mkdir debian
mount -o loop debian.img debian
Debootstrap tool will do all the work for us. You can try to use squeeze instead of lenny or download it from your country's mirror. "--variant=minbase" argument will install just base system with apt-get and only few other packages. (This also may need sudo)
Code:
debootstrap --verbose --arch armel --foreign lenny debian http://ftp.cz.debian.org/debian
umount debian
2. Mount the image
Now, we will use ADB shell to mount the image and finish debian installation. Do not forget to write "su" before you start, we need root for this.
You need to decide where to put debian.img. I suggest you to put it on a2sd partition, which is system/sd, so :
Code:
cp /sdcard/debian.img /system/sd
export kit=/system/sd
Our mount point will be /data/local/mnt, so lets make some variable to make it easier:
Code:
export mnt=/data/local/mnt
busybox mkdir -p $mnt
We also need to set these enviroment variables, and we can also make alias for busybox so we dont have to write busybox all the time.
Code:
export PATH=/usr/bin:/usr/sbin:/bin:$PATH
export TERM=linux
export HOME=/root
alias _=busybox
Now we need to create loop device for image:
Code:
_ mknod /dev/loop0 b 7 0
And if nothing went wrong, you should be able to mount image now ("mount: no /etc/mtab" is normal) :
Code:
_ mount -o loop,noatime $kit/debian.img $mnt
3. Finalizing installation of debian
With mounted image, we can proceed to second stage of debian bootstrap:
Code:
_ chroot $mnt /debootstrap/debootstrap --second-stage
If you want install some packages with apt-get, you also need to add repo to sources.list. Of course, if you downloaded squeeze instead of lenny, you need to change "lenny" to "squeeze"
Code:
echo 'deb http://ftp.cz.debian.org/debian lenny main' >$mnt/etc/apt/sources.list
Set correct DNS servers - debian can't take them from Android.
Code:
echo 'nameserver 4.2.2.2' >$mnt/etc/resolv.conf
Done, installation over.
4. Running debian bash
To get to debian bash, use this command. You can try "cat /etc/issue.net" or "uname -a" so you can see its really debian.
Code:
_ chroot $mnt /bin/bash
But its not all yet, you need to mount some things for debian:
Code:
mount -t devpts devpts /dev/pts
mount -t proc proc /proc
mount -t sysfs sysfs /sys
Now link mtab to /proc/mounts. You need to do this only once.
Code:
rm -f /etc/mtab
ln -s /proc/mounts /etc/mtab
And if you want to use ssh server to log in into debian, you also should set root pass:
Code:
passwd root
5. Installing packages
First, you need to update packages list:
Code:
apt-get update
and now you can install whatever you want with "apt-get install"!
6. Finishing
I suggest you to write some .sh script so you can mount it all with one command, for example something like this: http://pastebin.com/VT6272d5
What packages have you tested?
sshd - works great, you can connect to phone via putty or ssh
mc - works, but phone screen is to small
gcc-avr - if you are programming for avr microcontrollers, you can compile it on your phone
netcat - telnet connection
git-core - works great
htop - you can see this on screnshot below
apache2 - works like a charm
xfce4, Xorg server and tightvncserver - working but slow, see screenshots
gnash - working but slow, see screenshots. This is the only option how to run flash content on optimus one xD
Iceweasel - if you are using vnc server, you can browse web pages
gcc, g++, autoreconf, cmake and whatever else is needed to build mangos - working
mysql-server - you have to set "user = root" in /etc/mysql/my.conf, but works
MaNGOS - http://getmangos.com/ takes long to build, but works! See this post and also this one.
..and maybe some more which I dont remember.
Hope this tutorial helped you

I'll try bootstrapping debian when I figure out what the hell is wrong with my system. I can't download files from ftp (but I can with wget and other progs. just not with pacman, debootstrap, and the like).

debian on optimus v
searched around to avoid multiple posts, and found this.
I've been running chroot debian on my V as well, squeeze then sid now going back to squeeze.
the main problem I've encountered was in the "debootstrap --second-stage", which generally froze at "I: configuring sysvinit". I thought that was from overloading the CPU, but turns out android init doesn't create /dev/initctl like debian does, so debootstrap hangs waiting for a response reading/writing /dev/initctl
I didn't have that issue using SL4A's shell instead of android terminal.
being a bit of a 'noid, I have used "mknod /dev/initctl p" in the chroot before running "debootstrap --second-stage" since reading of that solution. not sure if it's making much difference, because that didn't fix the issue before I found SL4A and was still using android terminal for shell functions.
I like xfce4 as a window manager in the VNC, it's small but still functional.
I did a bit of things different than saurik, but used his guide extensively, along with much googling for other deb->droid ports.
my chroot runs in the android root directory with bind-mounts since the custom kernel I like doesn't include unionfs. I also directly use an ext4 2nd partition on the SD rather than a loop-mounted filesystem image. (yes, ext4 journals will eventually frag my SD but the cost of another is worth the crash-resistance to me.)
my short-term goal is to mix inits between the two os's and run X through an android app frontend to avoid the framebuffer copy lag from the VNC. my 3 main reasons for debian on the phone are program development (works currently,) flash (actually gnash, and needs a working full-speed access to framebuffer, not working yet,) and emulators for J2ME and MAME (same boat as flash.)
so far trying to run X directly blanks my screen and forces a battery pull to get it back, so kinda giving up that route for the moment.

so installing Archlinux on O1 must be possible? how?

pymebrahimi said:
so installing Archlinux on O1 must be possible? how?
Click to expand...
Click to collapse
All must work, as long as they support running on ARM. AFAIK Arch doesn't have an (official) ARM port. You can try Arch Mobile though

This command fails me
Code:
_ mount -o loop,noatime $kit/debian.img $mnt
The error I get is no device or file exists.
Tried creating more number of loop devises too. Still it didn't work. I am using cyanogemmod 2.3.3 ROM.

onehomelist said:
This command fails me
Code:
_ mount -o loop,noatime $kit/debian.img $mnt
The error I get is no device or file exists.
Tried creating more number of loop devises too. Still it didn't work. I am using cyanogemmod 2.3.3 ROM.
Click to expand...
Click to collapse
What is the exact wording of the error?

The exact error that I get:
Code:
# busybox mknod /dev/loop0 b 7 0
# busybox mount -o loop,noatime $kit/debian.img $mnt
mount: can't setup loop device: No such file or directory

Instead of using $kit/debian.img, try manually pointing to the debian image.
For example, if you have it on the sdcard's debian folder:
Code:
/sdcard/debian/debian.img

That too didn't work.

make sure that debian image is where it should be. Also try to "ls /dev/" and look for loop0 - i had some problems with loop devices on mik's 2.3, but I did not really solved it, because I went back to froyo after while.

The loop0 device exists is /dev. As you have experienced same issue on the same ROM, I am convinced that its a ROM issue.

I just tried to install xorg, xfce4 & tightvncserver - everything work just fine, although its kinda slow

ext partition instead of loop filesystem
Tasssadar said:
I just tried to install xorg, xfce4 & tightvncserver - everything work just fine, although its kinda slow
Click to expand...
Click to collapse
I think it runs faster from a sdcard partition than a loop filesystem, if I remember right. I tested a loop-mounted preconstructed debian img from some tutorial for another device before debootstrapping my own.
partition your card with a second partition, ext2 if you're worried about journalling wearing out your sd, or ext4 if you're more worried about corrupting your precious debian filesystem in a crash or unclean umount. gparted in ubuntu seemed to work well for me.
resize your ntfs partition instead of deleting it or android may complain.
with your debian img mounted as a loop filesystem on a linux box at the same time as your new partition, you can copy everything from the img to the ext partition by:
Code:
cp -av /path/to/loopmountedimg/* /path/to/extpartition
if you replace the loop-mounting code in your boot script with a vold mount of your ext partition, android is supposed to umount the partition cleanly on powerdown or reboot.
on my optimus v, the mount looks like the following in my boot script (I'm posting the comments too for info)
# mount 2nd sdcard partition from vold, should prevent dirty unmount at reboot
# if your linux is on a different partition than 2, substitute that number for the 2 in .../vold/179:2 below
# first unmount it; if not already mounted, system will echo 'umount: can't forcibly umount /dev/block/vold/179:2: Invalid argument' but this isn't an error to worry about
Code:
umount -l /dev/block/vold/179:2
mount -o noatime,exec,suid /dev/block/vold/179:2 /$mnt
maybe someone here can use this info.
also, for anyone who wants to save some hours and bandwidth, I have a basic squeeze debootstrap uploaded to 4shared.
it shouldn't be missing any of the readme's or licensing docs, so it should be GPL ok AFAIK.
resolv.conf and sources.list are already configured for 3g access and the main Debian repository, so it's pretty much plug-n-play.
no extra packages. you'll need to apt-get tightvncserver and a window manager unless you just want the bash shell.
the first time you chroot in, you should use passwd to set a root password, and adduser to get a non-root account on there.
the only glitch is that I accidentally tar'd it into a compressed folder; so you can't just untar it into the ext partition, it needs unpacked with an archive manager. sorry!
here is the filesystem image
uncompressed, 9645 items, totalling 264.3 MB
compressed, 116.3 MB (121929580 Bytes)

Tried to put it on ext2 partition without image, its a bit faster but still very slow.
But i took some screenshots this time. You can see flash (well, gnash) player on optimus one working on last screenshot
And I have one question: is debian using its own libc or android's bionic?

Tasssadar said:
Tried to put it on ext2 partition without image, its a bit faster but still very slow.
Click to expand...
Click to collapse
guess I'm biased, first linux I used was on a 100MHz pentium 1, so this handheld flies by comparison.
But i took some screenshots this time. You can see flash (well, gnash) player on optimus one working on last screenshot
Click to expand...
Click to collapse
I could only get gnash to play ads. boo. froze up iceweasel every time I tried to open a flash video. what browser are you using? oh, man, it's iceweasel, isn't it?? also, chromium just refused to start on my optimus.
And I have one question: is debian using its own libc or android's bionic?
Click to expand...
Click to collapse
pretty sure it's standard debian libc. you could integrate the android toolchain if you were so motivated, probably.

bigsupersquid said:
I could only get gnash to play ads. boo. froze up iceweasel every time I tried to open a flash video. what browser are you using? oh, man, it's iceweasel, isn't it?? also, chromium just refused to start on my optimus.
Click to expand...
Click to collapse
Chromium does not work for me, too.
Well, it froze for me too, but after while it at least got to show what you see on the screenshot
bigsupersquid said:
pretty sure it's standard debian libc. you could integrate the android toolchain if you were so motivated, probably.
Click to expand...
Click to collapse
I was just thinking if this is possible, then normal android aplication could have libc included, if its needed.

Do you know MaNGOS? It is open-source server for World of Warcraft (for more info go to http://getmangos.com/). I just compiled it and I run it on my optimus one. And guess what - without world db, its really fast! I am extracting UDB to database right now, I will post some screenshots and results with full-featured db soon.
And thats why I love linux and android

I got no words to describe my eyes when reading that at the moment.

So, what you might wanna know if you wanna try it too:
All packages needed for mangos to compile are working good, except for mysql server: you need to set "user = root" in my.cnf - it is located in /etc/mysql/ - because you cant put any root rights to any other user than root, so mysql user cant create tcp socket.
You will most likely need swap file - optimus has plenty of RAM, but yet not enough. All you need is to compile kernel with CONFIG_SWAP=y and follow this tutorial: http://www.cyberciti.biz/faq/linux-add-a-swap-file-howto/. 512mb swap is enough. Just for the record, swap is working on optimus one, I think nobody tried it here yet.
Now as for the compilation of mangos, it is mostly working as it is, only problems are intel tbb library and g3dlite library.
TBB is not available for arm yet, so you need to compile without it. Use -DUSE_STD_MALLOC=0 in cmake line.
As for the g3dlite, things are little bit more tricky - you need it, and there are some asm() instructions in it, which are different for arm. I only commented them, because I dont know assembler: https://github.com/Tasssadar/mangos-arm/commit/67c442fa0c10e82b282b83a8fe485588f8786e12
I have no idea how it can even work without all that code in g3dlite, but it just does.
You can use scriptdev2 from its git, theres no problem in it.
Thats all, after that just "make" and get something good to read, because it will take really long. At least 5 hours for compilation and nearly hour and a half for linking of scriptdev2 and mangosd binary.
Creating of databases is just like on normal pc, so I just skip it...same goes for dbc files, maps and vmaps.
Loading of mangos takes around 4 minutes with full-featured db. mangos then takes around 180mb of ram and cpu usage is...surprisingly low, considering the fact that our cpu does not have hw float operations. I tried to clear Azjol Nerub instance (well, solo with gm character) and maximal cpu usage was 60%, when fighting a boss with lots of spawns. I could imagine some 5-man dungeon run would be just fine
Also, you will get slight lag when moving into new location, when phone loads map files from sdcard.
Thats all, see screenshots

[Guide] Installing Fedora 12 on SGS4G

Good news for this guide:
I've done it already so you just need to download the files and follow these simple instructions:
YouTube Video of earlier stages of me running Fedora 12
0) make sure your Android Device is rooted (added so I get less nonsensical "It doesn't work!!!!!" and more "I followed everything I get an <insert error here> error! HELP!"
1) download files from http://zornco.net/androfedora/
2) extract fedora_scripts.rar and place all four files (bootfedora, unmountfedora, fedora.sh, fedora.img) in /sdcard/fedora/
3) open android terminal emulator
4) run command "su" (you might have to press allow in the Superuser App)
5) run command "cd /sdcard/fedora"
6) run command "sh fedora.sh"
7) run command "bootfedora" If that returns "not found" run "sh /sdcard/fedora/bootfedora"
8) now you're in fedora (should now see [[email protected] /]#)
OPTIONAL:
9) run "service sshd start" - to run an SSH server
P.S.: I set the root password to password
P.S.S.: I'm pretty sure it's impossible to screw up your Android OS doing this unless you terribly, terribly mess up this guide
Run the scripts and post your errors <- this will help me immensely to make this available on all Android Devices! please, thank you, and have fun!

N4melessS0ldier said:
Good news for this guide:
I've done it already so you just need to download the files and follow these simple instructions:
0) make sure your SGS4G is rooted (added so I get less nonsensical "It doesn't work!!!!!" and more "I followed everything I get an <insert error here> error! HELP!"
1) download files from http://anonymouslyacquired.info/fedoraonsgs4g/
2) place all three files in /sdcard/fedora/
3) open android terminal emulator
4) run command "su" (you might have to press allow in the Superuser App)
5) run command "sh /sdcard/fedora/fedora.sh"
6) run command "bootfedora" If that returns "not found" run "sh /sdcard/fedora/bootfedora"
7) now you're in fedora (should now see [[email protected] /]#)
8) run "startvnc" (my automated vncserver script)
AND/OR
9) run "service sshd start"
If you want to see your newly installed Fedora 12 OS:
android-vnc-client to localhost:5901 with password = password
P.S.: I set the root password to password
P.S.S.: I'm pretty sure it's impossible to screw up your Android OS doing this unless you teriibly, terribly mess up this guide
P.S.S.S: I'm running a rooted Bionix Frost SGS4G ROM with Bali KERNEL (don't think that matters but I do know being rooted matters!)
edit: apparently this isn't working for anyone but myself so far sooooo:
To Moderators: You may delete this thread and move the thread in Galaxy S 4G General: [Guide] Installing Fedora 12 on SGS4G to Galaxy S 4G Android Development (I only posted in General because I didn't have permissions to post here yet and posting here (I hope) will increase my ability to make this available to all SGS4G owners!)
Click to expand...
Click to collapse
forgive me for asking because im usually one to read to learn, but since you made this
what BENEFITS are gained from fedora?
i just dont know exactly what it is? thank you

I suppose mainly for developing. If you have fedora installed on a phone with a kernel that supports adding kernel modules and the kernel headers then you can build new modules for your phone on your phone. Also, it's sortof fun to show off, and it can potentially do some neat things (potentially aircrack-ng if it supports the WiFi device - maybe unlocking some features by allowing you to add linux tools and binaries - adding new media players - converting different media files to things accessible by Android Apps (or just playing them from Fedora) - extracting weird archives - and I'm sure if you take them time you can probably think of cool things you can do with an extremely portable, extremely customizable Linux Operating System Distribution (whether "legit" or less than))
edit: also, most things are already precompiled on a Fedora 12 ARM repo but if they aren't you can easily compile them from your phone (I suggest plugging it in and compiling/installing so you don't waste battery life (also I suggest doing that from your computer to your phone through SSH for easier typing, quicker command entering, etc.) and it may take some time depending on how overclocked the phone is)

Thanks for the explanation brotha!
sent from my sgs4g 2.3.3, finally

So I would be able to modify the frameworkres.apk and other things of that nature?
Sent from my SGH-T959V using XDA Premium App

I got it!
http://forum.xda-developers.com/showpost.php?p=8755526&postcount=7
If bootubuntu gets executed before Android loads all app2sd applications, it is possible solves the loop device busy error even with App2SD applications installed. It requires a very perfect timing, today after few experiments on my phone, I worked out a process which can always boot up Ubuntu on my phone:
1. Reboot phone
2. as soon as you enter lock screen, unlock screen
3. quickly go to terminal emulator
4. become su by typing su and enter
5. type bootubuntu and wait (type it fast... practice )
Click to expand...
Click to collapse
So apparently it's apps2sd causing this problem. I used the ubuntu guide but I'm sure fedora will work now, since it was just a mounting issue.
What I did to type this quickly was change the bootubuntu (or bootfedora in this case) script to just b so i could just do su, press enter, then b, press enter
EDIT
This means that it's possible to boot it as an init.d script to make sure it loads before the phone is done scanning the SD card. I think I'll wind up doing that... It's easier to kill the script when you don't need it than boot it when you want it.

Oh gosh, thank you so much I was just about to give up on public releases. Now that I know the problem I can fix my scripts to get arpund it. Thanks so much!
Sent from my SGH-T959V using XDA App

Just wanted to post again to express my gratitude I will definitely post a new script that will mount regardless of app2sd. Thank you! Thank you! Thank you!
Sent from my SGH-T959V using XDA App

Hey man I'm as happy as you are... Just spent the last few hours messing with ubuntu on the phone. Piece of work that is. You said fedora has sound support when booting on the phone?

Yeah I managed to get sound working.... sad part is my (granted I forgot to make a backup) version of the filesystem image became corrupt.... oops. Well, I'm buying a larger sd card in about 30 mins and I'm going to redo it so soon I'll upload the new img and scripts aswell as a kernel module for you and others using a different linux distro than fedora
Sent from my SGH-T959V using XDA App

Sounds great. Just a heads up, I was messing with the bootscript and I added the lines that mount the sdcard to the other OS's filesystem. Twice I got the phone freezing up so I did a hard reboot (battery pull) and when the phone rebooted it seems as if the /data partition got wiped (except for my background image which got saved, go figure). Weird, not even sure how that could've happened.

Very odd. If this forum has private messaging, PM me exactly what you added so I can make sure that or something more serious doesn't happen to others. Thanks
Sent from my SGH-T959V using XDA App

I just updated the script to mount whether or not you have App2SD installed on your phone.
It turns out App2SD uses a separate loop device for each app you have moved to your SD Card.
I've set the script "bootfedora" to create a "/dev/loop99"
So, unless you have 99 or more Apps moved to your SD Card it should work!
Re-download "bootfedora" from:
http://anonymouslyacquired.info/fedoraonsgs4g/
edit: currently working on new version of my Fedora 12 filesystem (should include a lot more (including working sound for a "nicer" feel) but it sucks if you have less than 2GB of freespace on your SD Card)

I'm completely in the dark when it comes to Fedora but I find it very interesting. It is going to be a Big Development for our phone I'm sure.
Wish I could help you but this is way out of my league.
I'm definitely following your progresses closely. Keep up the Great Work fellas!
Thanks

N4melessS0ldier said:
I just updated the script to mount whether or not you have App2SD installed on your phone.
It turns out App2SD uses a separate loop device for each app you have moved to your SD Card.
I've set the script "bootfedora" to create a "/dev/loop99"
So, unless you have 99 or more Apps moved to your SD Card it should work!
Re-download "bootfedora" from:
http://anonymouslyacquired.info/fedoraonsgs4g/
edit: currently working on new version of my Fedora 12 filesystem (should include a lot more (including working sound for a "nicer" feel) but it sucks if you have less than 2GB of freespace on your SD Card)
Click to expand...
Click to collapse
Alright man, I got it to boot perfectly without doing this at boot startup! Aww yeah, it's on!
One thing though, the scripts you've been posting lately have windows line endings insteads of Unix, so I had to convert them before they worked.

FBis251 said:
Alright man, I got it to boot perfectly without doing this at boot startup! Aww yeah, it's on!
One thing though, the scripts you've been posting lately have windows line endings insteads of Unix, so I had to convert them before they worked.
Click to expand...
Click to collapse
I'm not sure what I'm doing wrong but I keep getting the error
chroot: notfound
: not found
Shutting down Fedora
: not found

glt0404 said:
I'm not sure what I'm doing wrong but I keep getting the error
chroot: notfound
: not found
Shutting down Fedora
: not found
Click to expand...
Click to collapse
What rom/kernel are you using?

FBis251 said:
What rom/kernel are you using?
Click to expand...
Click to collapse
Stock rom with Bali 3.3UV
I'm pretty sure that's not the problem cause I've successfully booted Ubuntu (without gui).

Post up the whole list of commands you ran, plus the errors. Just copy the whole command line text

FBis251 said:
Post up the whole list of commands you ran, plus the errors. Just copy the whole command line text
Click to expand...
Click to collapse
This is what I got.
Code:
export PATH=/data/local/bin:$PATH
# #cd /sdcard/fedora/
# su
# sh fedora.sh
Usage: mount [-r] [-w] [-o options] [-t type] device directory
Usage: mount [-r] [-w] [-o options] [-t type] device directory
rm failed for -f, No such file or directory
: not found
: not found
: not found
: not found
: not found
: not found
Fedora Chroot Bootloader v0.1
Fedora Bootloader is now installed!
This process does NOT damage Android OS!
Original Installer by Charan Singh
Modified for Fedora Chroot by N4melessS0ldier
To enter the Fedora Linux console just type 'bootfedora'
: not found
: not found
# sh bootfedora
Usage: mount [-r] [-w] [-o options] [-t type] device directory
Usage: mount [-r] [-w] [-o options] [-t type] device directory
: No such file or directoryxtcard2
': Read-only file systemctory '/mnt/extcard2
'knod: invalid number '0
losetup: not found
failed: No such file or directory/extcard2
': No such file or directoryy '/mnt/extcard2/rootfs-f12
failed: No such file or directoryp1 on /mnt/extcard2/rootfs-f12
': No such file or directoryy '/mnt/extcard2/rootfs-f12
failed: No such file or directoryard2/rootfs-f12
': No such file or directoryrd2/rootfs-f12
': No such file or directoryrd2/rootfs-f12
failed: No such file or directoryrd2/rootfs-f12
failed: No such file or directoryxtcard2/rootfs-f12
failed: No such file or directoryrd2/rootfs-f12
failed: No such file or directoryrd2/rootfs-f12
Setting /etc/resolv.conf to Google Open DNS 8.8.8.8 and 8.8.4.4
: directory nonexistentte /mnt/extcard2/rootfs-f12
: directory nonexistentte /mnt/extcard2/rootfs-f12
Setting localhost on /etc/hosts
: directory nonexistentte /mnt/extcard2/rootfs-f12
Operation complete!
Courtesy N4melessS0ldier!
chroot: not found
: not found
Shutting down Fedora
: not found
#

"No such file or directory" if tried run binary file in TWRP

I need to run a binary file, dalvikvm which located in /system/bin from TWRP terminal, but no matter what, it says, "No such file or directory found", and then I found that this is link file located another directory, I cd'd there and tried, but still the same result
I can be able to run the same file in Termux without any issues
Can anybody please help me on this?
Thanks

Hi, I think you need to mount the system partition before being able to access it. It's not mounted by default on TWRP, but when the phone is on it is (otherwise Android wouldn't work)
If you need help on how to mount partitions on TWRP, ring me (or google it, it's actually pretty simple)

Raiz said:
Hi, I think you need to mount the system partition before being able to access it. It's not mounted by default on TWRP, but when the phone is on it is (otherwise Android wouldn't work)
If you need help on how to mount partitions on TWRP, ring me (or google it, it's actually pretty simple)
Click to expand...
Click to collapse
Thanks for replying, it wasn't mounted at first, so I had mounted, still it didn't work, while some of the files in bin do work, some don't.
Then I copied the file to /sdcard and /tmp, and tried execute from these folders, still
Well, if when you're free, can you confirm if it's running on yours?
File: /system/bin/dalvikvm
Thanks once again

mizzunet said:
Thanks for replying, it wasn't mounted at first, so I had mounted, still it didn't work,
...
Thanks once again
Click to expand...
Click to collapse
I didn't found it inside, but it may be because I'm not rooted.
While searching around I've found this :
No such file or directory while running dalvikvm
I built AOSP Android and push the dalvik virtual machine in my device just to see if my built dalvik vm runs properly. I pushed it my device /opt directory but when I run dalvikvm, I get the error...
stackoverflow.com
It might get you out of trouble

Raiz said:
I didn't found it inside, but it may be because I'm not rooted.
While searching around I've found this :
No such file or directory while running dalvikvm
I built AOSP Android and push the dalvik virtual machine in my device just to see if my built dalvik vm runs properly. I pushed it my device /opt directory but when I run dalvikvm, I get the error...
stackoverflow.com
It might get you out of trouble
Click to expand...
Click to collapse
I looked into it.
I had no opt folder in root directory. So I made one, and moved dalvikvm to there and tried execute this time, it said permission denied, so I gave it chmod 755. But after that, it says "there no such file or directory".
Well, do you telegram account, so I could contact you there.
Thanks

Raiz said:
I didn't found it inside, but it may be because I'm not rooted.
While searching around I've found this :
No such file or directory while running dalvikvm
I built AOSP Android and push the dalvik virtual machine in my device just to see if my built dalvik vm runs properly. I pushed it my device /opt directory but when I run dalvikvm, I get the error...
stackoverflow.com
It might get you out of trouble
Click to expand...
Click to collapse
And even "file" binary, it says, there no file.

mizzunet said:
I looked into it.
I had no opt folder in root directory. So I made one, and moved dalvikvm to there and tried execute this time, it said permission denied, so I gave it chmod 755. But after that, it says "there no such file or directory".
Well, do you telegram account, so I could contact you there.
Thanks
Click to expand...
Click to collapse
This is really curious, tbh I'm not an expert around that subject, idk what's wrong with this binary...
Hopefully someone who knows more may help you with that. Have a nice day

This is because the binary you are trying to execute was compiled to run in the Android context, but you're trying to execute it in the TWRP one. Each binary has a path to a linker used during execution. The problem is that it refers to a linker that doesn't exist in TWRP.
Suppose we want to execte a binary file and obviously we can't:
Bash:
x00h:/ # /system/bin/awk
/sbin/sh: /system/bin/awk: No such file or directory
Let's take a look to its linker:
Bash:
x00h:/ # strings /system/bin/awk | head -n 1
/system/bin/linker64
Then, you will actually discover that it's sym linked to a linker that is available only when Android is running:
Bash:
x00h:/ # ls -ald /system/bin/linker64
lrwxr-xr-x 1 root shell 38 2009-01-01 00:00 /system/bin/linker64 -> /apex/com.android.runtime/bin/linker64
Since TWRP comes with its linker in /sbin/linker64, we can sym link it to /system/bin/linker64.
So, the hack:
Bash:
x00h:/ # mkdir -p /apex/com.android.runtime/bin/
x00h:/ # ln -s /sbin/linker /apex/com.android.runtime/bin/linker
x00h:/ # ln -s /sbin/linker64 /apex/com.android.runtime/bin/linker64
Retry, and it works:
Bash:
x00h:/ # /system/bin/awk
usage: /system/bin/awk [-F fs] [-v var=value] [-f progfile | 'prog'] [file ...]
Pray to God the TWRP's linker will be compatible and do the job (most binaries works fine), but sometimes you may get CANNOT LINK EXECUTABLE.