[Q] Write, Execute Permissions - Android Software/Hacking General [Developers Only]

I have been googling far too long for an explanation of how to change the Read, Write, Execute options on individual system and data apps, when I remembed how fast someone usually answers my n00b questions here. It is not even clear to me what the differences are between the Write and Execute options. Can someone give me a link to a tutorial regarding this?
I did read the suggested threads, not helpful, and one I didn't understand about remounting the "entire /system partion to read-write".
thanks. d
To be more specific, I want to change the permission on certain system apps so I can uninstall them.

If your phone is rooted then you need a file manager that will remount the system partition as RW ( read write). Or you can use adb with your first command being adb remount.
Sent from my HTC Vision using XDA App

As ESKIMOn00b started to explain, the process of removing apps from the /system partition isn't a matter of individual file or folder permissions. Android secures the /system partition by preventing it from being written to under normal circumstances. If you have rooted your device then you have the ability to become the root user and run most if not all commands.
ADB provides a nice convenience command, 'adb remount', that will allow you to modify the /system partition. This command will only work if you have root user privileges but will unlock all of the apps for you to remove. Be careful though, you shouldn't just delete APK's directly out of /system/app as the package manager in Android might not keep up with your deletions. The best way to go about it (after remounting /system read/write) is to use the 'pm uninstall' command:
# pm uninstall com.myapp
To figure out the package names you can use 'pm list packages' and it will dump a huge list of all installed apps on the device. You'll need to hunt through and find the right ones. Most developers use obvious naming schemes such as Amazon's MP3 Store: com.amazon.mp3.
Hope this helps!
-ObsidianX

I have root and some recent experience w/the AndroidSDK. Using the SDK on my SonyEricsson phone:
c:\Users\dSpr> cd c:\AndroidSDK\tools
c:\AndroidSDK\tools>dir
{list}
c:\AndroidSDK\tools>adb devices
{0123456789ABCDEF device}
c:\AndroidSDK\tools>adb ls /system/app
{list}
c:\AndroidSDK\tools>adb shell
$ pm list packages
{list}
Note the shell command produces a $ instead of a #, but it still gives me a list.
But w/the $ and the command adb remount this:
$adb remount
adb remount
adb: permission denied.
If: tools>adb remount
This: remount failed; Operation not permitted
Same operation w/my QT7 and tools>adb shell produces a #. In fact, I don't even have to I don't have to use the adb remount command on my first uninstall, just
#rm /system/app/{app}.apk
#pm uninstall {package name}
I don't recall that I used the remount command between uninstalls-don't think I did or I would have noted it because I was keeping careful track of what I was doing. I can't test it because I have no apps on that device to uninstall.
Get the same result when using the terminal with the su command on the phone itself.
This is why I thought I had to change the Read/Write permissions.
What are you telling me that's not getting thru.
Thank you both very much.
d

to remount your system, you can try this
Code:
adb shell
Code:
su
Code:
mount -o remount,rw -t yaffs2 /dev/block/mtdblock4 /system

hesperides said:
to remount your system, you can try this
Code:
adb shell
Code:
su
Code:
mount -o remount,rw -t yaffs2 /dev/block/mtdblock4 /system
Click to expand...
Click to collapse
Nope. adb shell results in a $. su results in a su w/out the $ and after some (close to a minute) hesitation: Permission denied $
Debugging is on, as is mock locations. I am also having the exact same problem with my new enTourage Pocket eDGe, but it isn't that bothersome because it doesn't have a lot of garbage like the cell phone.
d

Related

How to get APPS back into system/apps/

I updated my rom and there are some omitted apps that I would like to get back into system/apps/ for example VoiceDialer.apk, but I cannot seem to get them back on. I am using Fresh Rom 0.4 and the phone is obviously rooted. maybe I am doing something wrong in adb shell but I keep getting one of 2 different erors. Either permission denied or adb not found. Thank you in advance for your help.
flaav8r said:
I updated my rom and there are some omitted apps that I would like to get back into system/apps/ for example VoiceDialer.apk, but I cannot seem to get them back on. I am using Fresh Rom 0.4 and the phone is obviously rooted. maybe I am doing something wrong in adb shell but I keep getting one of 2 different erors. Either permission denied or adb not found. Thank you in advance for your help.
Click to expand...
Click to collapse
1) Permission denied - make sure that when you do an adb shell, you're root (have the # prompt) and make sure you've mounted /system as rw (adb remount)
2) adb not found - make sure there's only one adb.exe on your computer and that it's the one from the SDK and that the SDK's /tools directory is in your path (to be safe, you can always just run adb from that directory)
jmanley69 said:
1) Permission denied - make sure that when you do an adb shell, you're root (have the # prompt) and make sure you've mounted /system as rw (adb remount)
2) adb not found - make sure there's only one adb.exe on your computer and that it's the one from the SDK and that the SDK's /tools directory is in your path (to be safe, you can always just run adb from that directory)
Click to expand...
Click to collapse
1. the procedure I used is this: from the cmd prompt in the androidsdk/tools/ directory:
adb shell
$ su
# mount -o rw,remount -t yaffs2 /dev/block/mtdblock3 /system
# cd /system/app
# adb push VoiceDialer.apk system/app
but its a no go. Can't understand why.
BTW, I have the VoiceDialer.apk file in the androidsdk/tools folder just to make the push easier.
Ok, here is a screen shot from my command prompt window. I know someone knows what the hell I'm doing wrong. Just wanna get the damn voice dialer back on my phone. Please help, thank you.
Microsoft Windows XP [Version 5.1.2600]
(C) Copyright 1985-2001 Microsoft Corp.
C:\Documents and Settings\Barry>cd \
C:\>cd androidsdk\tools\
C:\AndroidSDK\tools>adb shell
* daemon not running. starting it now *
* daemon started successfully *
$ su
su
# mount -o rw,remount -t yaffs2 /dev/block/mtdblock3 /system
mount -o rw,remount -t yaffs2 /dev/block/mtdblock3 /system
# adb push VoiceDialer.apk /system/app/
adb push VoiceDialer.apk /system/app/
adb: not found
#
you cant do adb push while in shell ($ or #). Exit out and just try tying the adb push
goku14238 said:
you cant do adb push while in shell ($ or #). Exit out and just try tying the adb push
Click to expand...
Click to collapse
When I do that I get permission denied or something to that effect.
Yeah there's a post about this in the Fresh thread.
The most straightforward way is this:
Reboot to the recovery partition.
adb shell into the phone.
Issue the following command to mount the system partition:
mount -t yaffs2 /dev/block/mtdblock3 /system
Type exit to exit the shell.
Then do:
adb push c:\directory-with-the-apks /system/app
jonnythan said:
Yeah there's a post about this in the Fresh thread.
The most straightforward way is this:
Reboot to the recovery partition.
adb shell into the phone.
Issue the following command to mount the system partition:
mount -t yaffs2 /dev/block/mtdblock3 /system
Type exit to exit the shell.
Then do:
adb push c:\directory-with-the-apks /system/app
Click to expand...
Click to collapse
Thank-you, I will give it a try.

ADB prompt question

I'm having some trouble with the mount command. More specifically when trying to mount the system without going into shell. It worked fine on 2.1, but on 2.2 I get an error. The command I'm typing is:
./adb shell mount -t rfs -o remount,rw /dev/block/stl9 /system
The error I get is:
mount: Operation not permitted
However, when I go into shell su, and just type the mount command, it works fine. I need to get the mount command to work outside of shell for a bash script that I am writing. If I enter shell in the script, the script does not finish executing, and I cannot enter commands into the adb shell prompt. Any idea?
I have a Samsung Fascinate running EB01 and the phone has been rooted. I'm also doing this on a mac.
Thanks.
Braydon525 said:
I'm having some trouble with the mount command. More specifically when trying to mount the system without going into shell. It worked fine on 2.1, but on 2.2 I get an error. The command I'm typing is:
./adb shell mount -t rfs -o remount,rw /dev/block/stl9 /system
The error I get is:
mount: Operation not permitted
However, when I go into shell su, and just type the mount command, it works fine. I need to get the mount command to work outside of shell for a bash script that I am writing. If I enter shell in the script, the script does not finish executing, and I cannot enter commands into the adb shell prompt. Any idea?
I have a Samsung Fascinate running EB01 and the phone has been rooted. I'm also doing this on a mac.
Thanks.
Click to expand...
Click to collapse
Hi, what does the following output?
adb shell id
Also, what about just
adb remount
- jc
JimmyChingala said:
Hi, what does the following output?
adb shell id
Also, what about just
adb remount
- jc
Click to expand...
Click to collapse
Tried both remount and shell remount..
$ ./adb shell id
uid=0(root) gid=2000(shell) groups=1007(log)
$ ./adb remount
remount failed: No such file or directory
$ ./adb shell remount
remount: not found

How do I install netflix patch

Hi,
I am rooted now (I guess/hope) I would like to fix it, I have the patch and have tried to copy the libnvomx.so to the lib dir n my TF using file manager HD, but it wont let me paste it, I dont have or seem to have access.
also, is the libnvomx.so the only one I need to copy from the patch?
does this mean I am not rooted?
Is there somewhere/link where I can learn how to, and what terms like adb, push, clear the cache sideload, quickboot, recovery, etc... mean? (search hasnt helped me much with the ones I have looked for, too many results or too few)
thanks for any help,
John
use the terminal emulator, and make sure you "su" before you try to copy.
Another option is Root Explorer: https://market.android.com/details?id=com.speedsoftware.rootexplorer
Root Explorer will allow you to establish write access to system files. It's what I used to get Netflix working on my Transformer
AustinMartin said:
use the terminal emulator, and make sure you "su" before you try to copy.
Click to expand...
Click to collapse
Hi,
Thanks, what is su?
I tried using adb (at dos prompt) I tried
adb push libnvomx.so /system/lib/
it said read only access
will the su give me access? how do I su?
I am not even sure what the terminal emu is?
thanks,
John
I don't know if your rooting added the terminal app to the tf101.
You need to run the su(superuser) command to gain access to the system files.
I think you can run it from adb as well, if you used adb to root, then you probably already used this command.
you can also just download the netflix patch zip to the microsd card, and install the zip from cwm recovery mode.
Xerravon said:
Hi,
Thanks, what is su?
I tried using adb (at dos prompt) I tried
adb push libnvomx.so /system/lib/
it said read only access
will the su give me access? how do I su?
I am not even sure what the terminal emu is?
thanks,
John
Click to expand...
Click to collapse
Close, no cigar:
try this:
adb remount
adb pull /system/lib/libnvomx.so libnvomx.so.orig
adb push libnvomx.so /system/lib/
adb chmod 644 /system/lib/libnvomx.so
adb remount
adb reboot
----
I'm not recalling if you can do an adb chmod, but probably you can so I'll add that in up there just in case it works: Also I added a bit where you get a copy of the original in case this all somehow goes bad.
hachamacha said:
Close, no cigar:
try this:
adb remount
adb pull /system/lib/libnvomx.so libnvomx.so.orig
adb push libnvomx.so /system/lib/
adb chmod 644 /system/lib/libnvomx.so
adb remount
adb reboot
----
I'm not recalling if you can do an adb chmod, but probably you can so I'll add that in up there just in case it works: Also I added a bit where you get a copy of the original in case this all somehow goes bad.
Click to expand...
Click to collapse
hI,
Thanks,
I havnt tried yet but will asap. Where did you learn this stuff? I was reading this thread (I finally looked in general)
http://forum.xda-developers.com/showthread.php?t=872128
It has some info but real detailed, like in your script, the "chmod 644" the 644 part. I guess it takes time, I ave only had this TF for a week or so and it is my first android OS.
thanks again, (I will let you know when I try,
John
edit
Just wondering before I try this, the pull command (Is that backing up the libnvomx file to the pc?
after reading the thread linked above, wont I have to be in adb shell to geet permission to copy the file to the lib dir?
AustinMartin said:
I don't know if your rooting added the terminal app to the tf101.
You need to run the su(superuser) command to gain access to the system files.
I think you can run it from adb as well, if you used adb to root, then you probably already used this command.
Click to expand...
Click to collapse
I used nvflash and adb to install busybox and superuser and su.
I dont know anything about su or superuser, I havent found any threads with info on them yet.
thanks,
It might sound confusing but this is just all basic linux.
when you're running the adb shell just enter su. This gives you permission to edit the /system files
Then pull(copy) the file from your tf101, to your local machine. this is a backup.
Then change the permissions on the file on your tf101.
Then push the new file from your local machine to your tf101.
AustinMartin said:
It might sound confusing but this is just all basic linux.
when you're running the adb shell just enter su. This gives you permission to edit the /system files
Then pull(copy) the file from your tf101, to your local machine. this is a backup.
Then change the permissions on the file on your tf101.
Then push the new file from your local machine to your tf101.
Click to expand...
Click to collapse
Hi,
I broke down and used your script, I tried doing it on my own but kept getting errors. I did seem to get one error in this line of yours
adb chmod 644 /system/lib/libnvomx.so
when I ran it (and I copy and pasted it to dos window)) it gave an error, well not an error but it listed commands and switches like if there is a typo. I dont know if it took the command or not here is a paste
Microsoft Windows [Version 6.1.7601]
Copyright (c) 2009 Microsoft Corporation. All rights reserved.
C:\Users\Kerr Avon>cd adb
The system cannot find the path specified.
C:\Users\Kerr Avon>
C:\Users\Kerr Avon>cd\adb
C:\ADB>adb remount
remount succeeded
C:\ADB>adb pull /system/lib/libnvomx.so libnvomx.so.orig
3429 KB/s (189660 bytes in 0.054s)
C:\ADB>adb push libnvomx.so /system/lib/
1174 KB/s (164764 bytes in 0.137s)
C:\ADB>adb chmod 644 /system/lib/libnvomx.so
Android Debug Bridge version 1.0.26
-d - directs command to the only connected USB device
returns an error if more than one USB device is present.
-e - directs command to the only running emulator.
returns an error if more than one emulator is running.
-s <serial number> - directs command to the USB device or emulator with
the given serial number. Overrides ANDROID_SERIAL
environment variable.
-p <product name or path> - simple product name like 'sooner', or
a relative/absolute path to a product
out directory like 'out/target/product/sooner'.
If -p is not specified, the ANDROID_PRODUCT_OUT
environment variable is used, which must
be an absolute path.
devices - list all connected devices
connect <host>:<port> - connect to a device via TCP/IP
disconnect <host>:<port> - disconnect from a TCP/IP device
device commands:
adb push <local> <remote> - copy file/dir to device
adb pull <remote> [<local>] - copy file/dir from device
adb sync [ <directory> ] - copy host->device only if changed
(see 'adb help all')
adb shell - run remote shell interactively
adb shell <command> - run remote shell command
adb emu <command> - run emulator console command
adb logcat [ <filter-spec> ] - View device log
adb forward <local> <remote> - forward socket connections
forward specs are one of:
tcp:<port>
localabstract:<unix domain socket name>
localreserved:<unix domain socket name>
localfilesystem:<unix domain socket name>
dev:<character device name>
jdwp:<process pid> (remote only)
adb jdwp - list PIDs of processes hosting a JDWP transport
adb install [-l] [-r] [-s] <file> - push this package file to the device and install it
('-l' means forward-lock the app)
('-r' means reinstall the app, keeping its data)
('-s' means install on SD card instead of internal storag
e)
adb uninstall [-k] <package> - remove this app package from the device
('-k' means keep the data and cache directories)
adb bugreport - return all information from the device
that should be included in a bug report.
adb help - show this help message
adb version - show version num
DATAOPTS:
(no option) - don't touch the data partition
-w - wipe the data partition
-d - flash the data partition
scripting:
adb wait-for-device - block until device is online
adb start-server - ensure that there is a server running
adb kill-server - kill the server if it is running
adb get-state - prints: offline | bootloader | device
adb get-serialno - prints: <serial-number>
adb status-window - continuously print device status for a specified device
adb remount - remounts the /system partition on the device read-write
adb reboot [bootloader|recovery] - reboots the device, optionally into the bootloader or
recovery program
adb reboot-bootloader - reboots the device into the bootloader
adb root - restarts the adbd daemon with root permissions
adb usb - restarts the adbd daemon listening on USB
adb tcpip <port> - restarts the adbd daemon listening on TCP on the specifie
d port
networking:
adb ppp <tty> [parameters] - Run PPP over USB.
Note: you should not automatically start a PPP connection.
<tty> refers to the tty for PPP stream. Eg. dev:/dev/omap_csmi_tty1
[parameters] - Eg. defaultroute debug dump local notty usepeerdns
adb sync notes: adb sync [ <directory> ]
<localdir> can be interpreted in several ways:
- If <directory> is not specified, both /system and /data partitions will be updated.
- If it is "system" or "data", only the corresponding partition
is updated.
C:\ADB>remount
'remount' is not recognized as an internal or external command,
operable program or batch file.
C:\ADB>adb remount
remount succeeded
C:\ADB>adb reboot
C:\ADB>adb reboot
Click to expand...
Click to collapse
Looks like it probably did work, anyway netflix is running.
some of the lines I tried that didnt work (and did) are here, not sure what was wrong.
adb push libnvomx.so /system/lib/
adb pull /system/lib/libnvomx.so libnvomx.so.orig
(I think push and pull wont work under shell)
*******************************************
cp /system/lib/libnvomx.so removable/microsd/isoa/libnvomx.so.orig
cp /system/lib/libnvomx.so removable/microsd/isoa/libnvomx.so.orig
cp isoa/libnvomx.so /system/lib/libnvomx.so
(dont know why these didnt work, I did su first)
***************************************************************
this worked!!!
cp /system/lib/libnvomx.so sdcard/isoa/libnvomx.so.orig
***************************************************************
cp sdcard/isoa/libnvomx.so system/lib/libnvomx.so
file exists error
********************************************************
Click to expand...
Click to collapse
Oh, so the android runs linux, or a version of it (like ubuntu, freebsd, etc...)? that should help me a lot. I installed ubuntu on one of my PC's a few years back but they didnt have drivers for sli and raid for my system at the time, I played with it a day or 2 and went back to MS. It has always been on the list to do. I am going to have to try it again.
I just looked, it looks like there are lots of new "distro's" (versions) now a day from back when I tried it.
anyway, thank you very much for the help,
John
once you did this:
C:\ADB>adb push libnvomx.so /system/lib/
1174 KB/s (164764 bytes in 0.137s)
you already copied it, so you must have already had permissions. Therefore this next command:
C:\ADB>adb chmod 644 /system/lib/libnvomx.so
Android Debug Bridge version 1.0.26
was redundant anyways. I suspect you needed to run
adb shell chmod 664 /system/lib/libnvomx.so
for adb to run the command on the transformer(shell) rather than in the dos directory.
AustinMartin said:
once you did this:
C:\ADB>adb push libnvomx.so /system/lib/
1174 KB/s (164764 bytes in 0.137s)
you already copied it, so you must have already had permissions. Therefore this next command:
C:\ADB>adb chmod 644 /system/lib/libnvomx.so
Android Debug Bridge version 1.0.26
was redundant anyways. I suspect you needed to run
adb shell chmod 664 /system/lib/libnvomx.so
for adb to run the command on the transformer(shell) rather than in the dos directory.
Click to expand...
Click to collapse
I see, so shell is like I am running it in/from the TF. I guess that is why push and pull doesn't work in shell, it could be confusing??
I downloaded/installed root explorer but I would rather learn it the harder way.
thanks again for your help!!
John
Cool. I wasn't sure about the "adb chmod" working since I'd only done that from a linux shell before this, but it was worth a shot. If you went into adb shell, then typed "mount -o rw,remount /system"; chmod 644 /system/lib/{whatever that file name was}; and mount -o remount,ro the thatt that would work", or I suspect he is right about how you can use "adb shell chmod 644 /../../.....".
Anyway, glad it worked out.
hachamacha said:
Cool. I wasn't sure about the "adb chmod" working since I'd only done that from a linux shell before this, but it was worth a shot. If you went into adb shell, then typed "mount -o rw,remount /system"; chmod 644 /system/lib/{whatever that file name was}; and mount -o remount,ro the thatt that would work", or I suspect he is right about how you can use "adb shell chmod 644 /../../.....".
Anyway, glad it worked out.
Click to expand...
Click to collapse
Hi,
If I shell, do su, then exit the shell (which I couldn't figure out how to do) do the su rights still apply, if I then use adb commands?
mount and remount, I see those are for mounting partitions, do the partitions each have different rights? and what does chmod do?
thanks again,
John
Xerravon said:
Hi,
If I shell, do su, then exit the shell (which I couldn't figure out how to do) do the su rights still apply, if I then use adb commands?
mount and remount, I see those are for mounting partitions, do the partitions each have different rights? and what does chmod do?
thanks again,
John
Click to expand...
Click to collapse
If you did an $su ; # inside the shell (adb shell), then when you typed in exit, that'd exit the shell, and cause any subshell's kicked off with a command (like "su" to pick one from a hat), to 'go away', So no, you wouldn't still be su.
But: There is a 'switch' or setting somewhere that brings up the adb shell in # su mode, but it escapes me right now.
Mount -o remount,rw||ro /{mountshare} (one command) will just remount some partition like system as you direct it to. It will 'outlast' the adb session. If you leave adb after doing a mount -o remount,rw /system, then you've left /system mounted rw. It doesn't hurt anything, but in theory you type in $sync; sync and $ mount -o remount,ro, and then the clean police will be happier.
chmod changes permissions. You could look up the man page on google, and it'll show you that you have 3 groups, owner, group and world. You could do the command in a couple forms, like #chmod {permission mask like 777} {filename} or chmod w+x {filename} where first one gave all permissions (rwe/rwe/rwe) to some file, 2nd gave the world execute permission.
hachamacha said:
If you did an $su ; # inside the shell (adb shell), then when you typed in exit, that'd exit the shell, and cause any subshell's kicked off with a command (like "su" to pick one from a hat), to 'go away', So no, you wouldn't still be su.
But: There is a 'switch' or setting somewhere that brings up the adb shell in # su mode, but it escapes me right now.
Mount -o remount,rw||ro /{mountshare} (one command) will just remount some partition like system as you direct it to. It will 'outlast' the adb session. If you leave adb after doing a mount -o remount,rw /system, then you've left /system mounted rw. It doesn't hurt anything, but in theory you type in $sync; sync and $ mount -o remount,ro, and then the clean police will be happier.
chmod changes permissions. You could look up the man page on google, and it'll show you that you have 3 groups, owner, group and world. You could do the command in a couple forms, like #chmod {permission mask like 777} {filename} or chmod w+x {filename} where first one gave all permissions (rwe/rwe/rwe) to some file, 2nd gave the world execute permission.
Click to expand...
Click to collapse
hI,
Thanks again, this is over my head right now, I am going to do like you say and search Google for a good beginners site. I am thinking about putting linux on my pc also, been wanting to for a while, I think that will help. I do know a lot more than I did when I started the thread
thank you,
John

Issues with c4droid. "Permission Denied". [Solved]

I have a rooted ASUS Transformer running Revolver 2.1.1 (Android 3.2).
I am a programmer and want a simple programming environment for my Transformer. I purchased an app called c4droid the other day and have had issues compiling c++ code using the g++ compiler.
When I try to compile/run code, I get the messages below:
C4droid has been granted superuser permissions
Click to expand...
Click to collapse
Then....
sh: /sdcard/Android/data/com.n0n3m4.droidc/files/gcc/compile-g++.sh: Permission Denied
Click to expand...
Click to collapse
How can I get this to work? Did I root wrong?
If you face these issues, click on the link below -
http://forum.xda-developers.com/showpost.php?p=16604606&postcount=6
What about trying this:
$su
#chmod 755 /sdcard/Android/data/com.n0n3m4.droidc/files/gcc/compile-g++.sh
I'm not sure what type of FS /sdcard is on the TF, so I don't know if those permissions will a) be allowed to be set, and b) work, but I doubt if any shell script will give anything but a permissions error without having +x permissions.
By the way:: If you can't do a chmod and that is due also to a permissions error, then I'm guessing you're not really rooted or not correctly rooted.
Good luck.
hachamacha said:
What about trying this:
$su
#chmod 755 /sdcard/Android/data/com.n0n3m4.droidc/files/gcc/compile-g++.sh
I'm not sure what type of FS /sdcard is on the TF, so I don't know if those permissions will a) be allowed to be set, and b) work, but I doubt if any shell script will give anything but a permissions error without having +x permissions.
By the way:: If you can't do a chmod and that is due also to a permissions error, then I'm guessing you're not really rooted or not correctly rooted.
Good luck.
Click to expand...
Click to collapse
did.......
su then chmod 755 /sdcard/Android/data/com.n0n3m4.droidc/files/gcc/compile-g++.sh and it had no such error but if I ran both on the same line I got a "Permission Denied" error. Either way, it still provided me with the permission denied error through c4droid.
Also, I've used root checker to verify that it's rooted.
So is it a sure thing that the .sh file you're getting the error on is actually the problem or could it be something inside it that is also having a permissions error?
I guess you could easily test that by writing a single line test.sh script that does an ls or a ps command.
Code:
example:
--start of test.sh--
#!/system/bin/sh #or whatever the path is for your case
ls > /sdcard/ls.txt
-- end of file ---
# cd {pathoftestfile}
# chmod 755 test.sh
# ./test.sh
# more ls.txt # or cat ls.txt, etc.
If that doesn't give an error then something in your 'real' shell script is.
One other thing worth a shot, which I "think" I've noticed on droids in the past is to just test the script inside the /system FS and see if it does any better there. At least we know that scripts have no problems in for example, /system/xbin or /system/bin, so mount /system rw (mount -o remount,rw /system) and move the test.sh over there , fix permissions, (mount -o remount,ro /system) and cd to /system/*bin/ and ./test.sh.
You've probably tried all this already, but if not.
NOTE: Never mind: I just tested my stuff ^^ myself, and it just doesn't work in the /sdcard tree. I moved it to /system/xbin after mounting rw and it works fine without any change.
There might be some way past this, but I can't recall ever getting a shell script working while on the /sdcard share.
I tried making the shell script but I had no luck actually running it. I chmodded it without error and ran it without error but it didn't produce a .txt file so I guess it failed to run or didn't have permissions to create a file.
The app developer/creator specifies that the compiler I'm using should work fine on rooted phones. I don't have an android phone to test it. I've tried working out problems with the developer but he couldn't figure it out either.
Okay, the creator helped me out and we resolved it. Here are the steps I took to do it, for other users.-
Pre-requisites: You must have BusyBox, SuperUser, C4droid, GCC for C4droid, and a Terminal Emulator installed. You also need a rooted device.
1. Open Terminal emulator and type "su" and press enter. A superuser screen will pop up and you need to click allow.
2. Type the following lines into the terminal (one by one):
cd /Removable/MicroSD/
mkdir Android
mkdir Android/data
cp -r /sdcard/Android/data/com.n0n3m4.droidc/ /Removable/MicroSD/Android/data/
su
mount -o remount,rw,exec -t vfat /dev/block/vold/179:9 /Removable/MicroSD
/system/xbin/mount -o bind /Removable/MicroSD/Android/data/com.n0n3m4.droidc/ /sdcard/Android/data/com.n0n3m4.droidc/
3. Change the default compiler in C4droid to G++ + bionic (Root required)
4. Done
Congratulations!
I guess it was mainly the 'noexec' switch of the mount -o {} that kept things from being executable.
I didn't notice that and am glad you posted the solution and I also wasn't really aware of the use of the "mount -o bind" for dual-pathing as well.
-- Thanks.

[Q] adb push- why am I getting permission denied?

phone: LG esteem ms910
Rooted: Yes
I'm trying to adb push a .apk file into my phones /system/app folder. These are the steps I am taking in trying to do this, but I am getting a permission denied response at the "adb push" part. Oh and my phone is under the "internet connection" setting. The other two (mass storage, charge only) wont let my phone enter debugging mode.
Code:
adb shell
su
mount -o remount,rw /dev/block/stl9 /system
exit
exit
adb push C:\Myfile.apk /system/app
Also when I enter the "mount -o remount,rw /dev/block/stl9 /system" command, It pops up twice but without the # symbol, not sure if there is an error there but it ends up looking like this:
Code:
C:\Android\android-sdk\platform-tool>adb shell
$ su
# mount -o remount,rw /dev/block/stl9 /system
mount -o remount,rw /dev/block/stl9 /system
# exit
exit
$ exit
exit
C:\Android\android-sdk\platform-tool>
I think you would want it to be on charge only, as the other options are utilizing the USB while charge only does not. That is how my setup functions... I did have the permission denied error before when I was using Ubuntu 10.04. Are you sure you have an up to date version of JDK? And the USB rules?
your command should be
adb push C:\Myfile.apk /system/app/myfile.apk
you have also to run adb as root or enable rw for /system/app
Basically:
______________________________________________
adb shell
su
mount -o remount,rw /dev/block/stl9 /system
chmod 777 /system/app
exit
exit
adb push C:\Myfile.apk /system/app/myfile.apk
________________________________________________
should do the job
@imheroldman- I tried leaving it on charge only, but the devices wasnt found when I ran the adb devices command, and yes the JDK is the latest.
@djodjoni -Hey I tried your suggestions and it worked.
Thanks to the both of you for helping.
FWIW, I got permission denied errors when I tried to push busybox via adb. I just downloaded a busybox .zip and flashed it via TWRP, it seems to have worked, and the busybox app recognizes it as installed.
I can't use adb push. It says Read Only file system when I try to push things to /sdcard. Don't know why
kavinzhao said:
I can't use adb push. It says Read Only file system when I try to push things to /sdcard. Don't know why
Click to expand...
Click to collapse
Use this:
Code:
[path] > adb shell
# mount -o rw,remount rootfs /
# chmod 777 /sdcard
# exit
[path] > adb push [file path on your PC] /sdcard
ИΘΘK¡€ said:
Use this:
Code:
[path] > adb shell
# mount -o rw,remount rootfs /
# chmod 777 /sdcard
# exit
[path] > adb push [file path on your PC] /sdcard
Click to expand...
Click to collapse
Thanks. I was using the recovery to receive before this. I think that should save me some time.
hello, I am having same problem, can you please help me out?
[email protected]_himaulatt:/data/local # adb push C:\firewater /data/local/temp
adb push C:\firewater /data/local/temp
error: device not found
1|[email protected]_himaulatt:/data/local # adb push C:\firewater /data/local/
adb push C:\firewater /data/local/
error: device not found
1|[email protected]_himaulatt:/data/local # adb push C:\firewater /data/l
adb push C:\firewater /data/l
error: device not found
1|[email protected]_himaulatt:/data/local # adb push C:\firewater /data/
adb push C:\firewater /data/
error: device not found
1|[email protected]_himaulatt:/data/local # cd ..
cd ..
[email protected]_himaulatt:/data # cd ..
cd ..
[email protected]_himaulatt:/ # exit
exit
[email protected]_himaulatt:/ $ exit
exit
C:\Users\Winpc\Downloads\fastboot-win>adb push C:\firewater /data/local/temp
failed to copy 'C:\firewater' to '/data/local/temp/firewater': Permission denied
C:\Users\Winpc\Downloads\fastboot-win>adb wait-for-devices push firewater /data/local/temp
failed to copy 'firewater' to '/data/local/temp/firewater': Permission denied
C:\Users\Winpc\Downloads\fastboot-win>adb shell
[email protected]_himaulatt:/ $ su
su
[email protected]_himaulatt:/ # mount -o rw,remount rootfs/
mount -o rw,remount rootfs/
Usage: mount [-r] [-w] [-o options] [-t type] device directory
1|[email protected]_himaulatt:/ # mount -o rw,remount rootfs /
mount -o rw,remount rootfs /
[email protected]_himaulatt:/ # chmod 777 /sdcard
chmod 777 /sdcard
[email protected]_himaulatt:/ # exit
exit
[email protected]_himaulatt:/ $ adb push C:\firewater /data/
adb push C:\firewater /data/
error: device not found
1|[email protected]_himaulatt:/ $ exit
exit
C:\Users\Winpc\Downloads\fastboot-win>adb wait-for-devices push firewater /data/local/temp
failed to copy 'firewater' to '/data/local/temp/firewater': Permission denied
C:\Users\Winpc\Downloads\fastboot-win>
Make sure you have phone detected and correct drivers and adb installed.
Once ADB is functioning properly, then let's PUSH files!
First let's make sure adb is running and make sure adb see's the phone. Please run these commands:
Code:
adb kill-server
adb start-server
adb devices
The output after devices will be a serial number, if this looks good, move on. First you need to make
sure the apk you want to push is in the same directory as adb.exe
once you have moved the apk to the adb.exe directory, then run the following:
Code:
[FONT=Verdana]adb remount
adb push myfile.apk /system/app/
adb shell chmod 644 /system/app/myfile.apk
adb reboot[/FONT]
adb remount mounts the phone as read write so you can write thru adb, it will be automatically unmounted when phone disconnected or rebooted
assuming your APK you want moved is called "myfile.apk"
adb push file_myfile.apk /system/app/ this command moves the "myfile.apk" (the apk you want moved) to the /system/app/ directory on your phone
adb shell chmod 644 /system/app/myfile.apk this command sets the correct file permissions for APKs
adb reboot this reboots the phone so that the new apk can be detected
Good luck
hi:
phone is rooted;
android 5.0 ;
adb start-server is OK;
adb devices is OK;
adb root is adbd is already running as root;
system and system/app are "chomd is 777 ";
I want to "adb push myfile /system/app/ "
Question: Permission denied .
- -
thx
other:
adb remount is Permission denied too.
"adb push ./build.gradle /storage/sdcard0/ " is OK.
opalescent said:
hi:
phone is rooted;
android 5.0 ;
adb start-server is OK;
adb devices is OK;
adb root is adbd is already running as root;
system and system/app are "chomd is 777 ";
I want to "adb push myfile /system/app/ "
Question: Permission denied .
- -
thx
other:
adb remount is Permission denied too.
"adb push ./build.gradle /storage/sdcard0/ " is OK.
Click to expand...
Click to collapse
sounds like you possibly do not have proper permission for the user you are logged into your computers operating system with. make sure you have the proper permissions and rights to access the folders you are trying to access. For a quick fix you can try loging into the system using the root user or administrator of the system that you are using and then try the adb commands. and you can just do a quick su switch from the Computer OS's konsole/terminal.
XeoNoX said:
First you need to make sure the apk you want to push is in the same directory as adb.exe
Click to expand...
Click to collapse
OMG thanks, mine wasn't working because something as simple as that!

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