Related
I tried loading the Aria into an adb shell, then tried the reboot command (just "reboot"). It replies "reboot: no such tool".
I also wrote a quick script with GScript and ran it with su permissions (my phone is rooted with clockworkmod, and liberated), and the same message showed on screen.
I also made a separate script that just runs "ls /system/bin" and I can clearly see the "reboot" command in the directory. Again, when I try to run /system/bin/reboot with su priveleges, it gives the same message.
I'm tempted to think that the reboot command in /system/bin simply runs the command "echo reboot: no such tool". Does anyone have any more information about this? I'd like a script that would use the reboot command to reboot into recovery mode.
I believe you should be able to use "shutdown /r" to reboot the phone.. probably needs to be done with sudo though..
jleehey said:
I tried loading the Aria into an adb shell, then tried the reboot command (just "reboot"). It replies "reboot: no such tool".
I also wrote a quick script with GScript and ran it with su permissions (my phone is rooted with clockworkmod, and liberated), and the same message showed on screen.
I also made a separate script that just runs "ls /system/bin" and I can clearly see the "reboot" command in the directory. Again, when I try to run /system/bin/reboot with su priveleges, it gives the same message.
I'm tempted to think that the reboot command in /system/bin simply runs the command "echo reboot: no such tool". Does anyone have any more information about this? I'd like a script that would use the reboot command to reboot into recovery mode.
Click to expand...
Click to collapse
I can reboot the phone using ADB by typing adb reboot... Or in terminal on the phone itself I su and then enter reboot and voila...
Not sure if this helps or not.
Edit: I am also running CM6 which has busybox installed.
The way I do it from shell is to type 'exit', this takes you out of shell. Then I type 'adb reboot'
Your path is probably not correct on the device. To change the path you need to edit init.rc and add the correct path.
I have had this same problem and now think that the tool unrevoked is messing the path variable up.
Let me know what you discover.
Same
I also have the same problem. I checked init.rc and i didnt find something about reboot. I run S5 Sensenation ROM. I will check again, But i happy to see that im not the only one who have the problem.....
Lil' Help... New stock SGS2 phone arrived today... I successfully flashed Entropy512's "stock kernel + rooted stock system image" via Odin3 (v1.85). Worked perfect, phone rebooted, now I have root. 2nd step, I extracted the zImage from Codeworkx's CWM tar file (put zImage in same PC desktop folder as my adb.exe files). I want to use adb push to push zImage file to phone so I can avoid the triangle/counter of death. Anyway, I got this error in my CMD window:
C:\Android\android-sdk-windows\platform-tools>adb push zImage /sdcard/zImage
error: device not found
What went wrong? The "phone" and "card" are recognized by windows explorer, but when trying to use adb commands, get "error: device not found"
Thx.
DoctorQMM said:
Lil' Help... New stock SGS2 phone arrived today... I successfully flashed Entropy512's "stock kernel + rooted stock system image" via Odin3 (v1.85). Worked perfect, phone rebooted, now I have root. 2nd step, I extracted the zImage from Codeworkx's CWM tar file (put zImage in same PC desktop folder as my adb.exe files). I want to use adb push to push zImage file to phone so I can avoid the triangle/counter of death. Anyway, I got this error in my CMD window:
C:\Android\android-sdk-windows\platform-tools>adb push zImage /sdcard/zImage
error: device not found
What went wrong? The "phone" and "card" are recognized by windows explorer, but when trying to use adb commands, get "error: device not found"
Thx.
Click to expand...
Click to collapse
Try to start by verifying that adb can see your phone.
type "adb devices" (no quotes)
This should return a number, if not, the phone is not being seen by adb.
If not check drivers, cable, try different usb port.
If it does return a number you are properly connected.
Proceed to:
adb push zImage /sdcard/zImage
adb shell dd if=/sdcard/zImage of=/dev/block/mmcblk0p5
Might need to as su if prompt shows $ instead of #
Try adb remount
i didnt realize so many people cared about a little triangle that you see for about 3 seconds on boot.
DoctorQMM said:
Lil' Help... New stock SGS2 phone arrived today... I successfully flashed Entropy512's "stock kernel + rooted stock system image" via Odin3 (v1.85). Worked perfect, phone rebooted, now I have root. 2nd step, I extracted the zImage from Codeworkx's CWM tar file (put zImage in same PC desktop folder as my adb.exe files). I want to use adb push to push zImage file to phone so I can avoid the triangle/counter of death. Anyway, I got this error in my CMD window:
C:\Android\android-sdk-windows\platform-tools>adb push zImage /sdcard/zImage
error: device not found
What went wrong? The "phone" and "card" are recognized by windows explorer, but when trying to use adb commands, get "error: device not found"
Thx.
Click to expand...
Click to collapse
You're missing drivers or haven't enabled USB debugging. Drivers for USB Mass Storage are built into Windows, drivers for ADB are not. Not sure what the procedure is for installing Windows ADB drivers... It's one of the reasons I almost never use Windows for working with my phone.
I've heard Droid Explorer might come with a drivers package, not sure.
Entropy512 said:
You're missing drivers or haven't enabled USB debugging. Drivers for USB Mass Storage are built into Windows, drivers for ADB are not. Not sure what the procedure is for installing Windows ADB drivers... It's one of the reasons I almost never use Windows for working with my phone.
I've heard Droid Explorer might come with a drivers package, not sure.
Click to expand...
Click to collapse
PDANET is free and simple to install on any Windows based machine. Less than 30 seconds and it recognises every phone I have tried so far. You just need to be sure to get the right one for you OS, 64 or 32 bit.
I sent to my kids that are too lazy to install the Android SDK.....
SNadler said:
Try to start by verifying that adb can see your phone.
type "adb devices" (no quotes)
This should return a number, if not, the phone is not being seen by adb.
If not check drivers, cable, try different usb port.
If it does return a number you are properly connected.
Proceed to:
adb push zImage /sdcard/zImage
adb shell dd if=/sdcard/zImage of=/dev/block/mmcblk0p5
Might need to as su if prompt shows $ instead of #
Click to expand...
Click to collapse
I appreciate everyone's input... OK, here's where I stand:
adb does now recognize phone. After typing "adb devices", cmd window showed my phone in list of devices attached. I then proceeded to "adb push zImage /sdard/zImage... that seemed to work also [cmd window came back with "2544 KB/s (6718048 bytes in 2.578s)]. Next, I typed "adb shell dd if=/sdcard/zImage of=/dev/block/mmcblk0p5" [cmd window came back with "/dev/block/mmcblk0p5: cannot open for write: Permission denied"]
so is still a drivers issue? cable issue? or something else? Thx again
EDIT: one additional clue for all the experts: the zImage is now on my /sdcard. When I type "adb shell", I do get "$" instead of "#" in cmd window... and I know I have root on phone. When I type "adb shell su" in cmd window, I get "Permission denied".
Sometimes the root install won't completely work until you go to the Superuser app once manually. (e.g. in Applications).
Also, another possibility may be that there are two ways to run adb shell:
One is
Code:
adb shell <command>
Where it'll run <command> and then exit
Then there is
Code:
adb shell
<command1>
<command2>
exit
In the second, when you first type "adb shell" you'll get a shell prompt on your phone.
Then you'll type su (this will give you superuser privileges)
Then you run the dd command
Then you should be good.
The difference is: If you have a custom "insecure" kernel, an ADB shell defaults to root privileges. If you have a stock kernel, ADB shell defaults to "mortal user", and you need to manually use su to get root privileges.
Pushing the file to the SD card does not require root, writing the kernel to the kernel partition (mmcblk0p5) does.
Entropy512 said:
Sometimes the root install won't completely work until you go to the Superuser app once manually. (e.g. in Applications).
Also, another possibility may be that there are two ways to run adb shell:
One is
Code:
adb shell <command>
Where it'll run <command> and then exit
Then there is
Code:
adb shell
<command1>
<command2>
exit
In the second, when you first type "adb shell" you'll get a shell prompt on your phone.
Then you'll type su (this will give you superuser privileges)
Then you run the dd command
Then you should be good.
The difference is: If you have a custom "insecure" kernel, an ADB shell defaults to root privileges. If you have a stock kernel, ADB shell defaults to "mortal user", and you need to manually use su to get root privileges.
Pushing the file to the SD card does not require root, writing the kernel to the kernel partition (mmcblk0p5) does.
Click to expand...
Click to collapse
===============
Entropy512... you da man! I'm good to go now. As you recommended, even though I've been using Root Explorer and I know I was 'rooted', had to open SuperUser app on phone... then in the cmd window when I typed "adb shell" I got the "$" prompt. So at the $ prompt I typed "su"... this gave me the "#" prompt. SuperUser App then asked for SU permission acceptance. Then did the "dd xxxxxxxx" command, and it came back with:
13121 +1 records in
13121 +1 records out
6718048 bytes transferred in 2.895 secs (2320569 bytes/sec).
Rebooted phone to recovery, and have the light blue CWM Recovery 5.0.2.3.
Now I'm rooted, have CWM, and no triangle/counter of death. Hope this helps anyone else with a similar situation.
Again, a BIG shoutout to Entropy512, SNadler, jivy26, et al., for your constructive and quick replies. This forum is the best!
DocQ
One last [Q] Do I have to leave the large "zImage" file (6.41mb) in the /sdcard folder, or can it be removed /moved now that CWM successfully flashed?
DoctorQMM said:
One last [Q] Do I have to leave the large "zImage" file (6.41mb) in the /sdcard folder, or can it be removed /moved now that CWM successfully flashed?
Click to expand...
Click to collapse
No need to leave it, although I keep a bunch of various kernels in /sdcard/kernels myself - it's up to you.
Ive pushed all kinds of other stuff, I did do the add system enviromental variable to XP so this could be my issue, though like i said its worked for other things ...
ERROR I GET>
CANNOT STAT
adb push stock-hc-flyer-hboot_1.11.0006.nb0 / && adb shell dd if=/stock-hc-flyer-hboot_1.11.0006.nb0 of=/dev/block/mmcblk0p18
NO SUCH FILE OR DIRECTORY
a thourough explanation or a cut and pastable pointing my adb to this file, its in the root, the variable is to the root C also, so....
PLEASE HELP, to get me past this 10+hours of hell
May be a connection between your computer and phone issue. I have this error when I wanted to root my nexus s. Try different driver for your flyer.
Accidentally sent from my Google Nexus S using XDA Premium
Make sure the adb works via "adb devices" and "adb shell". If it does not work you can try "adb kill-server" first.
I don't think you can write (push) to "/" without "adb remount". Not sure if it is a good idea to write to root directory.
Alternatively, you can use the storage in /data/local/tmp, it is always writable.
Hello,
Veteran SW guy here; but newbie at Android.
I have three tablets. All of them are Ematic Model EGS004. All three were bought for the sole purpose of being used by children to watch educational videos (in mp4 and flv formats) and read PDF documents. Absolutely nothing else. No games. No internet access whatsoever. Etc.
Two of the tablets are still in the box and have not been touched. I'm hoping that they may be useful for making/restoring an original image of the tablets.
To implement the requirements of this project, I did the following to one of the tablets:
1) Used the instructions at http://forum.xda-developers.com/showthread.php?t=2495069 to get root access with Cydia Impactor and Chainfire SuperSU.
2) Installed Titanium Backup (root). Using this, I uninstalled most of the Google applications (excluding Google Play), messager, YouTube, games, etc.
3) Installed File Manager (Explorer) by Rhythm Software.
4) Installed Shell Terminal Emulator by MobilDev. Using the shell, I went to the /system/lib directory and renamed libwifidisplay.so
and libwpa_client.so to libwifidisplay.disabled and libwpa_client.disabled.
Unfortunately, upon reboot, the tablet gets stuck in the bootup screen (with the ematic logo). Obviously, something about Android causes a hang if an expected kernel module is missing...
I tried using the shell in Cydia Impactor. But, the file system was read only. I tried:
mount -o rw,remount /system
But, I get an "Operation not permitted" since I am not root.
I downloaded the ADB bundle for windows at http://developer.android.com/sdk/index.html#download and successfully installed adb on my PC. I could get into a shell with the "adb shell" command. But, the /system/lib directory still is read only and I can't seem to remount it since I am not root.
I tried "adb remount". "Operation not permitted" was the result, again.
Cydia Impactor installs its "su" binary in /system/xbin. I tried running it from there using various invocations like "su -c mount -o rw,remount /system" Each time, the shell hung and I never got a shell prompt afterwards.
Questions:
1) Surely there's a way that I can get back in to rename these files now... I can "ls" them from the adb shell. I can pull them to my PC with adb pull. (adb put doesn't work either since the file system is read only.) Ideas?
2) Once I get this solved, what is the best way to get rid of the wireless capability so that children can never use it? I would like to move videos and PDF's between it and a PC strictly via USB.
3) Is there a way to image/restore one of the untouched tablets - or, for that matter, this one once its up and running like it needs to be?
Thanks everyone!
Jim
Let's try a simpler question since there have been no responses:
Once I get into a shell (non-root) using ADB or Cythia Impactor, I believe I can rename the files if I can only get SuperSU to work. However, when I invoke su, the shell hangs:
su -c ls
su
etc. All of these hang. I assume that SuperSU is waiting for a confirmation from the android display. But, since I'm stuck at the startup screen, there's never an opportunity. How can I get the shell to interact with me as root so that I can remount the file system as RW and rename files?
Thanks,
Jim
rivkah613 said:
Hello,
Veteran SW guy here; but newbie at Android.
I have three tablets. All of them are Ematic Model EGS004. All three were bought for the sole purpose of being used by children to watch educational videos (in mp4 and flv formats) and read PDF documents. Absolutely nothing else. No games. No internet access whatsoever. Etc.
Two of the tablets are still in the box and have not been touched. I'm hoping that they may be useful for making/restoring an original image of the tablets.
To implement the requirements of this project, I did the following to one of the tablets:
1) Used the instructions at http://forum.xda-developers.com/showthread.php?t=2495069 to get root access with Cydia Impactor and Chainfire SuperSU.
2) Installed Titanium Backup (root). Using this, I uninstalled most of the Google applications (excluding Google Play), messager, YouTube, games, etc.
3) Installed File Manager (Explorer) by Rhythm Software.
4) Installed Shell Terminal Emulator by MobilDev. Using the shell, I went to the /system/lib directory and renamed libwifidisplay.so
and libwpa_client.so to libwifidisplay.disabled and libwpa_client.disabled.
Unfortunately, upon reboot, the tablet gets stuck in the bootup screen (with the ematic logo). Obviously, something about Android causes a hang if an expected kernel module is missing...
I tried using the shell in Cydia Impactor. But, the file system was read only. I tried:
mount -o rw,remount /system
But, I get an "Operation not permitted" since I am not root.
I downloaded the ADB bundle for windows at http://developer.android.com/sdk/index.html#download and successfully installed adb on my PC. I could get into a shell with the "adb shell" command. But, the /system/lib directory still is read only and I can't seem to remount it since I am not root.
I tried "adb remount". "Operation not permitted" was the result, again.
Cydia Impactor installs its "su" binary in /system/xbin. I tried running it from there using various invocations like "su -c mount -o rw,remount /system" Each time, the shell hung and I never got a shell prompt afterwards.
Questions:
1) Surely there's a way that I can get back in to rename these files now... I can "ls" them from the adb shell. I can pull them to my PC with adb pull. (adb put doesn't work either since the file system is read only.) Ideas?
2) Once I get this solved, what is the best way to get rid of the wireless capability so that children can never use it? I would like to move videos and PDF's between it and a PC strictly via USB.
3) Is there a way to image/restore one of the untouched tablets - or, for that matter, this one once its up and running like it needs to be?
Thanks everyone!
Jim
Click to expand...
Click to collapse
Erratic Ematic
rivkah613 said:
Let's try a simpler question since there have been no responses:
Once I get into a shell (non-root) using ADB or Cythia Impactor, I believe I can rename the files if I can only get SuperSU to work. However, when I invoke su, the shell hangs:
su -c ls
su
etc. All of these hang. I assume that SuperSU is waiting for a confirmation from the android display. But, since I'm stuck at the startup screen, there's never an opportunity. How can I get the shell to interact with me as root so that I can remount the file system as RW and rename files?
Thanks,
Jim
Click to expand...
Click to collapse
I rooted my son's EGS004, installed busybox, and played around with it without any apparent problem. When I rebooted it, I was prompted to set up the device then and every subsequent time I rebooted it. I could not install any apps and could not redo the Cydia Impactor rooting procedure. The reason was that /data was reporting itself as 0.00B in size. Factory reset didn't change anything. Ematic wants me to return it.
Your issue sounds different, but it could be something as simple as the device being very unforgiving. There's a pinhole with a reset button (never worked for me but tech support suggested it) which may help.
Hi guys..
I ve rooted my quattro by Kingo root methed.
and i installed chainfire 3D, while installing driver it says " IT MAY STOP REBOOTING YOUR DEVICE" but i tried..... :silly:
But now my mobile stopped rebooting... whenever i try to start the logo "samsung galaxy grand quattro" comes and still stands...:crying:
is it died?:silly:
hii
Yabee said:
Hi guys..
I ve rooted my quattro by Kingo root methed.
and i installed chainfire 3D, while installing driver it says " IT MAY STOP REBOOTING YOUR DEVICE" but i tried..... :silly:
But now my mobile stopped rebooting... whenever i try to start the logo "samsung galaxy grand quattro" comes and still stands...:crying:
is it died?:silly:
Click to expand...
Click to collapse
Try flashing it using odin
CHAINFIRE 3D IS NOT TO BE USED ON JELLYBEAN WHY DON'T PEOPLE UNDERSTAND IT IS NOT FOR 4.0+?
Sent from my GT-I8552 using Tapatalk
GOT SOLUTION ( Chainfire 3D softbrick on samsung)
Please follow this instruction carefully
After you follow this:
... Download ADB here: url
...1. extract the file you just download
...2. put it in C: (so you can access it easily)
...3. you can rename it (you can name it anything you want but we will use "Android-adb" in this tutorial)
...4. open SDK Manager.exe
...5. make sure that Android SDK tools, Android SDK Platform-tools, Android SDK Build-tools and Google USB Driver is installed
Then you follow this:
>reboot your phone in recovery mode (remember, ONLY IN RECOVERY MODE, DONT CONTINUE TO "APPLY UPDATE ADB", JUST STAY IN RECOVERY MODE)
>plug in your devices in USB,
>go to CMD (command prompt)
>type this: "cd c:\Android-adb\sdk\platform-tools" without quotes / quotemarks
>type "adb" without quotes / quotemarks
>type "adb shell" without quotes / quotemarks
>it will automatically type "[email protected]:/ $" so continue it with typing "su" after that, so it will be seen like: "[email protected]:/ $ su"
>it will automatically type for you again, "[email protected]: #" so continue it with typing "system/lib/cf3d_uninstal.sh" after that, so it will be seen like "[email protected]:/ # /system/lib/cf3d_uninstall.sh"
>ignoring all the fail and your device will rebooted and just fine
If you followed the instruction carefully, the CMD will seen like this
htt*p://s29.*postimg.*org/*tgq844hzb/*dev.*png
(delete all the "*"):victory::laugh:
Yabee said:
Please follow this instruction carefully
After you follow this:
... Download ADB here: url
...1. extract the file you just download
...2. put it in C: (so you can access it easily)
...3. you can rename it (you can name it anything you want but we will use "Android-adb" in this tutorial)
...4. open SDK Manager.exe
...5. make sure that Android SDK tools, Android SDK Platform-tools, Android SDK Build-tools and Google USB Driver is installed
Then you follow this:
>reboot your phone in recovery mode (remember, ONLY IN RECOVERY MODE, DONT CONTINUE TO "APPLY UPDATE ADB", JUST STAY IN RECOVERY MODE)
>plug in your devices in USB,
>go to CMD (command prompt)
>type this: "cd c:\Android-adb\sdk\platform-tools" without quotes / quotemarks
>type "adb" without quotes / quotemarks
>type "adb shell" without quotes / quotemarks
>it will automatically type "[email protected]:/ $" so continue it with typing "su" after that, so it will be seen like: "[email protected]:/ $ su"
>it will automatically type for you again, "[email protected]: #" so continue it with typing "system/lib/cf3d_uninstal.sh" after that, so it will be seen like "[email protected]:/ # /system/lib/cf3d_uninstall.sh"
>ignoring all the fail and your device will rebooted and just fine
If you followed the instruction carefully, the CMD will seen like this
htt*p://s29.*postimg.*org/*tgq844hzb/*dev.*png
(delete all the "*"):victory::laugh:
Click to expand...
Click to collapse
Before you run the uninstall.sh script you may need to remount the /system partition in read/write mode with the following command. On my OneTouch 5020T the /system partition is in read-only mode.
This command will place it in read/write mode:
mount -oremount,rw /system
--Mouse2600