General :: Gain Root On Stock System Image
May 6, 2013
I own a complete backup of all partition of the LG P990 with stock ICS, made it with nvflash with a command like this,
Code:
nvflash -r -read <-partition number-> my_partition.img
for all the partition listed in the partition table.
I guess that in someone of that raw image file, (outputted by nvflash), is located the entry system partition, (PartitionId=23 for the LG P990 ICS partition layout).
It's easy for every linux user to mount the raw image file, simply with 'mount' utility.
Browsing them we can find as already hypothesized the entrie android system partition!
If I copying in it the 'su' executable compiled for my platform, it could work?
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Oct 11, 2013
I have a Rockchip RK3188 Tablet with Android 4.2.2, which I need to root ON DEVICE. Actually, the device was already rooted (using a Laptop via the adb bridge), so I already have busybox installed and I have one of my own apps in /system/app. However I managed to delete the su program (yeah great!) and therefore don't have root access any more. I know I can easily root the device again if I connect it to my laptop again, but that is not possible, because the device is at my parent's place and I can't go over there any time soon.
Therefore I want to root the device just with an app. Actually I would only need to copy su to /system/xbin. These are the things I already tried (without success):Framaroot (doesn't work, because framaroot does not support Rockchip tablets)
Writing my own app, which contains su in the assets and using this su for temporary root
Using adb (on the device) for a local connection (adb connect localhost), because if I connect from my PC I automatically have root (doesn't work because Android 4.2.2 has increased security on adb)
Start telnetd via busybox and then execute my commands via nc (doesn't work, because I can't start telnetd in a way that it ends up with a root shell)
My last idea is, that I could maybe gain temporary root access with the app I already have in /system/app. Basically this would be similar to the Master Key Exploit, except that I do not have to fiddle around with the apk and instead install it normally. However I don't know how to continue from that point. I know, I have special permissions if I have an app in /system/app, but which permissions are that? And how can I use those permissions to make /system writeable (and copy my su file there)?
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Apr 27, 2010
if i can root my device to gain full access but remain stock? Im wondering if i root the device can i gain full access, delete unnecessary sprint apps that i dont use but keep the default rom and not have to flash? Is it the rooting that gives full access or the flash to a custom rom?
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Nov 16, 2013
How to install a stock image on my Acer Iconia A1-810 tablet, I've been stucked in a bootloop, because I failed at rooting it, that i could partially solve using an update via the recovery (it failed but now my tablet can be launched at least). So now, I'd like to install a stock rom to make everything back to normal but I absolutely don't know how to do.
I tried via adb/fastboot but the commands aren't responding on the device.
Also the main problem is that it seems there are no custom recovery available (CWM) for this tablet.
Why I can't update my device using the OTA update (reboot + fail each time), I checked with root checker and others apps like that, no root detected (I uninstalled the root using the toolkit available here [URL] .........
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Feb 24, 2013
I have micromax ninja a27 with android 2.3.5. I want to gain root access on it .
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Dec 19, 2012
Is rooting mean really exploiting a Kernel vulnerability to gain root access?
If there are no vulnerabilities, no root access?
why doesn't Android allow root access by default like other Linux or windows...
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Aug 31, 2010
OK, some of us have the OTA update, and some of us got the update by downloading the update.zip (I downloaded the update from here.)
Froyo is nice however it is not clean. There is so much bloatware on this that i cant wait to get rooted again so i can get rid of all of it.
Has anyone done this yet? Can it be done yet?
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Jun 5, 2010
Well, upon attempting to read as much as possible before taking the plunge, I've run across a few methods to accomplish the same thing. I'm currently running 2.1 OTA(stock) and wanted the most basic way to root with the least chance of bricking.
I've gone through the guides, but have also run into DroidMod's guide on flashing 2.1 with recovery.
RSD is a little intimidating to me and I'm afraid if I breathe wrong on the phone, it will become a paperweight.
Is using RSD the only/easiest way to gain root? Sorry for the redundant question, however there are a few threads on this topic and dated within a few months of one another and I'm which route to take.
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Feb 7, 2010
I am a new Motorola Droid user. My phone came with 2.0.1 installed. I installed Instant Root 1.04 and attempted to run it but got a message "unble to gain access". I started down this road because I wanted to backup my phone so I could do a hard reset. So installed "Titanium Backup". It wouldn't run because my rom wasnt rooted. So i have spend 4 hours researching and each item i find leads me to another issue or program to install. Most everything seems to involve rooting. One question I have is if there is a difference between 2.0.1 preinstalled an 2.0.1 ota?
For background I wanted to reset the phone because none of the 3rd party contact or phone dialing packages will read the native phone list or contacts. I owned a Omnia i910 and did a considerable amount of customization on it to I am reasonably familiar with digging around in the guts for a general user.
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Mar 23, 2014
Okay, I'm pretty sure my Nexus S 4G is running Cm10. I didn't root it, but I would like to know how to gain root access since it seems to already be rooted. I'll post a screen shot that shows my confusion. mobile app
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Dec 7, 2009
It will be helpful if any one can help me out in understanding the concept of radio,flash,system image in android mobile device. Also why are they required? and what is their role in Device?
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Apr 20, 2012
I have lost an image,I use a normal image as a wallpaper. One day I made a backup of my rom and flashed another. As you understand I wiped my sd card. Finally I didn't liked the new rom and restored my previous. Now I see that image as my wallpaper but it does not appear to be in my sd card. It is only set as my wallpaper. If I will change wallpaper I will lose this image once and forever.
I tried to find that image again but with no result.Is there any way to take this image from the system? For example via a file explorer.
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Sep 7, 2010
We can view an image with What if we have some images? How can we put the extras to let the viewer know we have /sdcard/a.jpg, /sdcard/b.jpg, /sdcard/c.jpg ? I hope to do this in a time because starting an activity is very expensive. Code...
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Dec 10, 2013
So after a failed attempt to upgrade from CyanogenMod 10.1.3 to 10.2, I was unable to access /data or /sdcard because both systems were encrypted. I ended up having to factory reset my phone because it refused to co-operate or let me access my files. However, before I did that, I was able to run
Code:
adb shell "dd if=/dev/block/mmcblk0p2" > data.img
and
Code:
adb shell "dd if=/dev/block/mmcblk0p3" > sdcard.img
Which appears to have copied the raw partition images from the phone (at least, they're the right sizes).
According to my reading, Android (and, I'm inferring, CyanogenMod) encrypts filesystems using dm-crypt, with a AES-CBC ESSIV:SHA256 cipher, with the key being derived from the password using PBKDF2. Knowing the precious little I do about encrypted file systems, my guess is that if I configure the image in cryptsetup to create a drive mapping, I can mount the mapped drive and recover the data from the images.
According to /fstab.herring on my ahem, fresh, install of Android, the /data partition is in ext4 format whereas the /sdcard partition is vFAT. So, once I've gotten through the encryption on the partition images, they should mount normally, right?
I know that dm-crypt accepts plain, LUKS, LoopAES and TrueCrypt device formats. I'm inferring from the PBKDF2 extension that Android goes the LUKS route for encrypting. Is this conclusion correct?
Whether it's possible to decrypt a dumped android image? I'm really hoping that the cypher information is stored on the file system and not on some key file that I nuked in the factory reset. If it can, in theory, be decrypted, am I using the right tools to approach the matter? If so, I'll continue fiddling with cryptsetup and mount, but no sense in wasting time if it's an impossible task.
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Mar 7, 2012
I'm after a system.img that's going to allow me to run adb shell sessions as root. That's all I need. I don't need any of the normal phone fuctions or devices. I'd imagine disabling these would overcome any incompatibility issues... but I don't know.
Naturally, it'd be easier if such an image already existed, but I should be able to follow instructions on how to reconfigure a normal system and pack it to yaffs2 image.
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Feb 18, 2012
I developed a cramfs rom for the np7 after user dochoppy found root for the nextbook premium 7 tablet, but he then converted to ext3 which because its packed with features will be more popular. So I am trying to edit his ext3 rom in Ubuntu 11.10 and here is what I do:
1. Copy and paste system.img to desktop
2. Create a folder called system on desktop
3. In command prompt:
cd ~/Desktop
Sudo mount -t ext3 -o loop system.img system
(Asks for pw)
4. Doc said something about only being able to edit as root, so after some Googling I find out how to create a program that grants root.
5. (Open "run as" program) then I type "nautilus /home"
(Asks for pw)
6. Navigate to mounted system and I have read/write privileges (but only in this window)
7. View the system mount properties, and it says I have 14.2 mb free space on device
8. Delete files throughout the system folder to make room (but when I refresh properties, free space increase doesn't show)
9. Try to add my own files after deleting some others, ans rather than using the increased space, it just fills the fourteen megs before telling me "device is out of memory "
why is the system not physically making the proper system increase and decreases.
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Apr 11, 2012
How to find list of SYSTEM LOCALES (language list that we see in settings) from ROM file system image/file tree (assuming that /system can be mounted as folder)? Which files/folders have this information?
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Aug 13, 2012
I've mapped my android phone as a network drive using Samba and changed the smb.conf file to show the System Root directory as well. However, system root is default set as R/O so to mange files USING my computer I need to change the permission to R/W using a file manager (such as root explorer). This is annoying, as I have to keep doing this in order to write to certail directories.
I would like the / directory (root) to be mounted as R/W as default so that I can quickly edit files on my PC without having to constantly change it to R/O. I want something that will automatically mount my phone's root dir into rw upon boot, without custom apps/having to manually mount as rw everytime it reboots.
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Apr 10, 2014
Is it at all possible? We want to put non-button Views in our System Bar. We do have system keys for our specific tablet.
One of my friends tried doing it with no success, but I assume he was looking in the wrong places. I don't know what he knows about the process, so I can't say what we've tried.
We're using Android 4.2 .
I guess I should also mention that we've tried this app - [URL] ..... though we haven't been able to find any info on how he got it to work.
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Sep 30, 2010
How do you get rid of the stock apps when you are rooted but are still running the stock ROM 2.2.1? I have tried using Titanium Backup but I when I load it it comes up with a error message "can't gain root access". Check you're rooted (which I am) and are running a ROM with Busy Box (which I'm probably not)" Is Busy Box something that can be added onto the stock ROM or is their another option to remove these apps?
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Apr 30, 2014
Imagine a scenario where you have just system access on android , and you want to continually have it, so you use the su binary, with the correct permission and the setuid flag on, and the owner being system, you do:
Code:
chown 1000:1000 su2
chown 06755 su2
you have the ability to change the owner to system as you do when rooting, and you also set the appropriate permission as you do when rooting,
06775 being the permission code to all have execution permission, and the setuid flag on.
But when dealing with system permission that doesn't work. it only works with root.
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Mar 3, 2013
How I can uninstall system apps from my dev. without root?? Becouse I don't know How I can do root on m prestigio.
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Jun 25, 2013
I accidentally flashed the wrong recovery image on my karbonn a4+ using mobileuncle tools . The phone is stuck in recovery mode and I am unable to make a selection in recovery. How can I flash the correct version of stock recovery. i cant factory reset in my phone.
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Sep 4, 2012
I am using a BQ Pascal 2 Tablet which is equal to the Odys Neo X7. I installed the german Version of the Odys Neo X7 software, because there was no german or englisch dictionary installed. The ODDYS software works without any issues, but there is also no dictionary included (confirmed by Odys Support)
So i tried to go back to the Stock software, which is a bit faster.I tried to restore the Backup, made with Clockwork (after formatting the device). no success. The device get stuck at the Bootscreen.The same happens if i will install the CyanoMod from this Forum.
The Odys Update uses the RKAndroid Tools to flash the device. BQReaders uses a file named image.img which has to be placed in the root of the internal SD-Card. The update starts automatically after a few seconds. The Odys-Software is not able to do this.
The Image-File from BQReaders is only only one file with a size of 315 MB, not divided in Bootloader / Recovery and so on.how i can go back to the Stock Software? It can be experimental, because i will be able to install the Odys Software by the RKAndroid tools again.
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Nov 28, 2013
I just got this phone from HSN, Samsung Galaxy Light model SGH-T399. Well my friend thought it was a smart idea to flash this phone for root and I was at work. So now the phone stuck on the Samsung boot screen.
Need stock Recovery image and stock ROM so I could see to revert it back to working condition as when I bought it.
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Sep 11, 2011
Is it possible to extract the recovery.img (the stock one) so that it can be flashed back onto the custom recoveries?
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Oct 21, 2012
I'm looking for an backup application which will allow me to backup my apps and system data on roms based on stock ICS and restore to JB and vice versa.
Titanium backup does the job but after restoring on a new rom I get a lot of fc's and none of the apps works. I cannot restore call log and text messages, accounts, etc.
There's a lot of backup apps, I know. But I would like to be sure that they work as they should. Any app which will do the job?
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Feb 2, 2012
How can i permanently store custom ringtones on root/system partition? if i store custom ringtones on internal or external sd, profiles are messed up every time i connect my phone in mass storage mode.
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Dec 24, 2013
I have a android tablet and I have tried rooting it and I get things like "read only file system" and I looked into it and my /system is read only.. Rooting is putting .su in the xbin or bin inside of the /system. But my /system is read only so i can't root my tablet?
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Jun 25, 2013
Is it possible to root S3 with S4 stock rom.
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