I just did a major mistake by copying sh from Windows to /system/bin/sh. Not haivng the execute bit has stopped me from using adb shell.
Could someone provide a clockworkmod recovery file that restores sh & it's permissions? I would greatly appreciate it. Thanks!
Why not just run the fix permissions script from the advanced menu in clockworkmod?
Sent from my SCH-I500 using XDA App
well, would be easier from a linux box:
chmod 755 sh
adb push sh /system/bin/sh
adb reboot
i_am_enderst said:
well, would be easier from a linux box:
chmod 755 sh
adb push sh /system/bin/sh
adb reboot
Click to expand...
Click to collapse
Thanks. I fixed it through recovery mode shell via adb.
I'm getting the following garbage when I do ls within adb shell. Is there any way to fix this?
Code:
# ls
ls
←[1;34mcache←[0m ←[1;32minit.rc←[0m ←[1;34msbin←[0m
←[1;34mconfig←[0m ←[1;32minit.smdkc110.rc←[0m ←[1;34msdcard←[0m
←[1;34mdata←[0m ←[1;32minit.smdkc110.sh←[0m ←[1;34msqlite_stmt_journals←[0m
←[1;34mdbdata←[0m ←[1;34mlib←[0m ←[1;34msys←[0m
←[1;32mdefault.prop←[0m ←[1;32mlpm.rc←[0m ←[1;34msystem←[0m
←[1;34mdev←[0m ←[1;34mmnt←[0m ←[1;32msystem.prop←[0m
←[1;34mefs←[0m ←[1;34mpreinstall←[0m ←[1;34mtmp←[0m
←[1;36metc←[0m ←[1;34mproc←[0m ←[1;34muserdata←[0m
←[1;32mfota.rc←[0m ←[1;32mrecovery.rc←[0m
←[1;36minit←[0m ←[1;34mres←[0m
Those are bash color escape codes but I don't know why adb is outputting them since I'm new to Android.
It's a windows command prompt thing..
Easiest solution, do this from your adb shell (you'll need to do it each time)
export LS_COLORS=none
alternatively you can installed cygwin and spend a little time setting it up so that the ANSI colors are displayed when using adb shell.
I assume the colors show up fine under linux, which is why this got included in some kernels/rom packages without anyone addressing it.
Thanks for the info. It shows up correctly through a cygwin terminal. I'll just use that for now on.
Hi here,
I got a problem on my Atrix 4G. after I unlock BL and applied a bug fix of autoram.
I fetched the package what mentioned by this thread http://forum.xda-developers.com/showthread.php?t=1240310&highlight=ram+fix
but I used a particular way to apply this patch. In fact, I have really no idea how to apply rom patch. I tried to look into the package and found there was 2 file(cmdline and cmdline.c). I did bellow steps.
Code:
d:\adb>rem extract file cmdline from Ramfix.zip
d:\adb> adb push cmdline /data/tmp
d:\adb> adb shell
$ su
# cd data/tmp
# ln -s cmdline add
# ./add [email protected]
And reboot after that. My atrix4g was frizzing on booting logo.
How do I rescue this damage? can I refresh the unlock sbf file or something?
I just new for android.
I appreciate to any clues help me out of this situation.
liang xiao
Background: On a rooted device, I installed busybox via the BusyBox Pro app, with the "symlinks" option checked. Afterwards, wifi stopped working, root stopped working, adb stopped working, and a lot of tasks started failing with "sh: applet not found".
The problem: BusyBox Pro 8.0 replaces /system/bin/ash with a symlink to busybox. This was problematic on my device, where /system/bin/sh was a symlink to ash, so now 'sh' is actually calling busybox, and this particular compilation of busybox didn't have 'sh' support compiled in, hence the "sh: applet not found" error everytime anything tried to call sh, which as it happens, is a lot! The bug was fixed quickly with a 8.1 release, but due to suspected caching policies on the Google Store, a lot of people still got the old release even after this was fixed!
Here's how I fixed this:
Prerequisite: You'll need a replacement sh binary. On another device, which was also an ARM device, sh was symlinked to 'mksh', and I just took this. You might want to verify that the binary works on your broken device before completing the final steps below.
Initial Wifi
It's only DHCP that is failing (on the "Obtaining IP address..." step), so go into your Wifi Settings, forget the network, add it again, and change DHCP to "static", manually fill in the appropriate IP info for your network, and you'll be good to go (encrypted network is fine).
Getting a Root terminal
Download KBOX from http://kevinboone.net/kbox.html
In KBox, menu -> more -> preferences, change shell -> "command line" to "/system/bin/ash"
su -s /system/bin/ash
Remounting /system as RW
In theory, all you should need to do is: busybox mount -o remount,rw /system
This didn't work for me, and I got a "permission denied (are you root)" error, I guess because the system was no longer booting properly. I had to redo some of the steps involved in rooting my device, in my case:
On phone:
mkdir /data/local/lib
echo ro.kernel.qemu=1 > /data/local.prop
reboot
(wait for reboot, and get into a root terminal again as per the above)
On PC (from previous files used for rooting my device):
adb push lsm_disabler.ko /data/local/lib/
Oh phone:
insmod /data/local/lib/lsm_disabler.ko
rm /data/local/lib/lsm_disabler.ko
cat > /data/local.prop
From this point, I was able to remount successfully:
mount -o remount,rw /system
Fixing sh
Now on your PC, push the replacement binary to /system/bin, in my case:
adb push mksh /system/bin
On phone:
cd /system/bin
busybox ln -sf sh mksh
Verify now that "./sh" gives you a working terminal.
If all is good:
mount -o remount,ro /system
reboot
All done! Wow, this saved me sending my device back to Japan, since it's still using the stock bootloader and there are now available update.zip's out there. Good luck everyone, feel free to ask questions :>
P.S. I'm going to contact BusyBox Pro's author now with some suggestions to prevent these kind of problems happening in the future.
Deleted.
Deleted.
I rant into the same problem on my Galaxy Tab. Thanks for this, it saved my day!
A little correction to this little thing:
Kinslayer81 said:
On phone:
cd /system/bin
busybox ln -sf sh mksh
Click to expand...
Click to collapse
This worked for me:
cd /system/bin
ln -sf mksh sh
chmod 755 sh
Thank you
Just want to say thanks.
Your Posting helped me out with the Problems on my htc flyer.
I installed BusyBox Pro by Stephen (Stericson) to fix a missing symlinks problem that I had after installing JRummy's Busy Box. I then encountered the applet not found problem and then just reinstalled JRummy's version and it fixed it without having to do anything else.
Kinslayer81 said:
Background: On a rooted device, I installed busybox via the BusyBox Pro app, with the "symlinks" option checked. Afterwards, wifi stopped working, root stopped working, adb stopped working, and a lot of tasks started failing with "sh: applet not found".
The problem: BusyBox Pro 8.0 replaces /system/bin/ash with a symlink to busybox. This was problematic on my device, where /system/bin/sh was a symlink to ash, so now 'sh' is actually calling busybox, and this particular compilation of busybox didn't have 'sh' support compiled in, hence the "sh: applet not found" error everytime anything tried to call sh, which as it happens, is a lot! The bug was fixed quickly with a 8.1 release, but due to suspected caching policies on the Google Store, a lot of people still got the old release even after this was fixed!
Here's how I fixed this:
Prerequisite: You'll need a replacement sh binary. On another device, which was also an ARM device, sh was symlinked to 'mksh', and I just took this. You might want to verify that the binary works on your broken device before completing the final steps below.
Initial Wifi
It's only DHCP that is failing (on the "Obtaining IP address..." step), so go into your Wifi Settings, forget the network, add it again, and change DHCP to "static", manually fill in the appropriate IP info for your network, and you'll be good to go (encrypted network is fine).
Getting a Root terminal
Download KBOX from http://kevinboone.net/kbox.html
In KBox, menu -> more -> preferences, change shell -> "command line" to "/system/bin/ash"
su -s /system/bin/ash
Remounting /system as RW
In theory, all you should need to do is: busybox mount -o remount,rw /system
This didn't work for me, and I got a "permission denied (are you root)" error, I guess because the system was no longer booting properly. I had to redo some of the steps involved in rooting my device, in my case:
On phone:
mkdir /data/local/lib
echo ro.kernel.qemu=1 > /data/local.prop
reboot
(wait for reboot, and get into a root terminal again as per the above)
On PC (from previous files used for rooting my device):
adb push lsm_disabler.ko /data/local/lib/
Oh phone:
insmod /data/local/lib/lsm_disabler.ko
rm /data/local/lib/lsm_disabler.ko
cat > /data/local.prop
From this point, I was able to remount successfully:
mount -o remount,rw /system
Fixing sh
Now on your PC, push the replacement binary to /system/bin, in my case:
adb push mksh /system/bin
On phone:
cd /system/bin
busybox ln -sf sh mksh
Verify now that "./sh" gives you a working terminal.
If all is good:
mount -o remount,ro /system
reboot
All done! Wow, this saved me sending my device back to Japan, since it's still using the stock bootloader and there are now available update.zip's out there. Good luck everyone, feel free to ask questions :>
P.S. I'm going to contact BusyBox Pro's author now with some suggestions to prevent these kind of problems happening in the future.
Click to expand...
Click to collapse
This helped get my wifi back after flashing a kernel.
Hey there,
I've got the same problem.
After reinstalling the ROM everything works fine,
but when I try to install busybox, I get the same failure everytimes.
How can I prevent it?
Do I have to follow the steps above?
And where do I get the sh binary from?
Sorry guys, I'm a little confused and hope you may help me..
Thanks!!
Kbox not open in my ics when I open it its automatically closed
And i want to ask the script su -s /system/bin/ash where i put this script
I have a non-rooted Android device with stock ROM 4.4.2 and I have the following test shell script:
Code:
adb push test.sh /data/local/tmp
adb shell "cd /data/local/tmp; chmod 755 test.sh"
adb.exe shell "sh /data/local/tmp/test.sh > /dev/null 2>&1 &"
If I run this over ADB from PC to my device, it simply works.
Now convert this to:
Code:
cp test.sh /data/local/tmp
cd /data/local/tmp; chmod 755 test.sh
/system/bin/sh /data/local/tmp/test.sh > /dev/null 2>&1 &"
and it doesn't work. It says permission denied on /data/local/tmp.
Is there any other EXT4 place on a non-rooted device that I can do this?
Well, I cd to /data/local/tmp and even submitting a 'ls' command inside Terminal Emulator doesn't work, it says permission denied, but when doing it from PC to Android using ADB it's fine. Is there any workaround for this? I want to be able to do this on the device itself.
Thanks
idoit said:
I have a non-rooted Android device with stock ROM 4.4.2 and I have the following test shell script:
Code:
adb push test.sh /data/local/tmp
adb shell "cd /data/local/tmp; chmod 755 test.sh"
adb.exe shell "sh /data/local/tmp/test.sh > /dev/null 2>&1 &"
If I run this over ADB from PC to my device, it simply works.
Now convert this to:
Code:
cp test.sh /data/local/tmp
cd /data/local/tmp; chmod 755 test.sh
/system/bin/sh /data/local/tmp/test.sh > /dev/null 2>&1 &"
and it doesn't work. It says permission denied on /data/local/tmp.
Is there any other EXT4 place on a non-rooted device that I can do this?
Well, I cd to /data/local/tmp and even submitting a 'ls' command inside Terminal Emulator doesn't work, it says permission denied, but when doing it from PC to Android using ADB it's fine. Is there any workaround for this? I want to be able to do this on the device itself.
Thanks
Click to expand...
Click to collapse
No there isnt, not if you try using /data partition. ADB can read this partition (and that too was added around android kitkat itself for purpose of adb backup
etc). So ADB can read this partition, but terminal emulator and such cannot.
Assuming that you have a great reason to simply not copy the sh file to user-usable internal memory, /system partition is the one place where you can copy things without actually having root (and even access them with terminal emulator, but not manipulate them), and this isn't that simple either. Rather, the method will be device dependent. For instance, if you have a phone like Nexus phones, simply download stock firmware, open/extract it depending on what format it is (img or tar), add your sh file and repack the firmware, then flash it into the phone. The firmware should be same as your current installed so your applications dont mess up. But this method is not only long (and messy if your device has integrity checks on firmware files), but also not possible on some phones (as far as I know).
You can also try copying the sh file with adb to /data/data/com.android.terminal. Then you should be able to access this with terminal emulator (since an app has permissions inside its own data folder). However I have not tested this method and I am not sure it will work.
Besides this, every app (including terminal emulator) runs in a sandbox and does not have access to anything except /system (read-only access), emulated user-storage and its own data inside /data/data/. So in phone itself, you cannot read the file unless you copy it to /system or user-memory. And this finally implies that except above two methods, there is no other way to copy file to some other place except user-memory and be able to read it using some app inside phone itself without rooting.
Thanks for your comprehensive reply. I resolved the problem. Yes, it's right, I can simply run the shell script without even moving it to /data/local/tmp... so now I can conveniently running it directly from my phone without having to turn a computer on and do it over ADB.
thankx
Hello everyone,
I've updated my firmware to the latest version of my huawei ascend p7 making it impossible to root my phone. Now what I'm trying to do is get the non-rooted busybox working and replace the old links of commands with the ones in busybox. I'm using the following commands to do that:
First I export the path and such using:
Code:
export PATH=$PATH:/data/data/burrows.apps.busybox/app_busybox;
LD_LIBRARY_PATH=$LD_LIBRARY_PATH:/data/data/burrows.apps.busybox/app_bussybox
Now I'm able to use busybox in my terminal (only for that session, when I exit the terminal and restart it I would have to re-do the export path thing).
So... I wanted to replace all the links to those of busybox using the following command:
Code:
for c in `busybox --list`; do busybox ln -s busybox $c; done
This however outputs for each command for example cat:
Code:
ln: cat: Read-only file system
I've read somewhere that you can remount your system partition in order to make it writeable? Is this the way to do it? And if so what commands should I run? I have access through adb and a normal shell on the phone. Remember: it's non-rooted...
EDIT: seems like I can't remount /system without root priviledges...
Also I would like to be able to have a full colored bash shell with a bashrc (in which I can add the path to busybox aswell) if that's possible.
I'm using jackpal's android terminal emulator.
EDIT: I think I might've posted this on the wrong forum, if anyone is so kind as to move this to this forum: http://forum.xda-developers.com/ascend-p7/help I would greatly appreciate it. Altho I think this might be a general question rather then a model specific question.