I have a ZTE Axon 7 (A2017U) and I'm trying to install a stock rom (A2017UV1.1.0B35). I currently have TWRP installed and an unlocked bootloader. I can access the device via fastboot and TWRP recovery mode, but otherwise it will not boot.
I'm stuck in a loop:
If I install my rom via TWRP, when I reboot the phone the /system partition is never mounted. I can see "Failed to mount '/system' (Invalid argument)" written in the log
If I view the /system partition details on TWRP's "Wipe->Advanced wipe->Repair or change file system" screen, the partition is listed as "Present: Yes, Removable: No, Size: 0MB, Used: 0MB, Free: 0MB, Backup size: 0MB
If I format the /system partition using "Wipe" function, the "Formatting system using make_ext4fs" operation succeeds and partition seems to be correctly formatted using ext4, and is listed as "Present: Yes, Removable: No, Size: 5455MB, Used: 10MB, Free: 5444MB, Backup size: 10MB
I'm able to access the partition via the terminal, and if I write a text file to it and reboot the device, I'm able to read it back... It seems the partition is working correctly.
I attempt to install the rom again using TWRP's "Install->Install zip" option, and after ~10 minutes it states that installation was completed successfully.
I reboot the device and the OS does not load. If I access TWRP, I see the /system partition is not mounted and the cycle continues
I've also tried installing other roms (e.g. Lineage OS), but they all fail assert checks, even thought I'm 100% positive they're for the correct device.
I'm tearing my hair out here. I'm a programmer by day and I'm fairly experienced with Unix, but admittedly I don't have much experience working with Android. There's a good chance I'm missing something.
Any idea what's going on, or what to try next? Is there any other information I can provide that might help me troubleshoot the problem?
I don't know of this will help, but I had a similar issue with a Samsung phone once. What had happened is when I flashed the new ROM the .dat or .img file was smaller than the original partition and it shrunk the system partition. I was lucky and I had previously dumped a copy of my system partition with terminal and was able to put it back.
When the partition was shrunk it wouldn't install any other ROM's either. If you could get another user with your same device to dump their system into an .img file we might be able to fix it with dd commands.
Sent from my LG-Q710AL using Tapatalk
Related
I started playing with my Galaxy S2 I9100 recently after upgrading to a Galaxy S4 I9505 and trying custom ROMs. As the system partition wasn't big enough to install a ROM and a full Gapps package, I thought I'd try to change the partition table and increase the size of the FACTORYFS and DATAFS partitions at the same time reducing the size of the UMS partition.
My first attempt was to use parted through an ADB bridge with the phone in CWM recovery and doing so managed to get the phone working with the exception of the camera which immediately threw up the error 'Unfortunately camera has stopped working.' The Gallery app also doesn't work saying there is no storage present. When using the print function of parted, there was a msftres flag indicated for the FAT32 formatted UMS partition.
I have since used PITmagic to set FACTORYFS to 1GB and DATAFS to 4GB but interestingly when using the print function in parted, DATAFS and UMS had nothing listed under filesystem. I was able to get the DATAFS partition to ext4 using the wipe data function in CWM recovery but am unable to get the UMS partition formatted to FAT32. I have tried flashing busybox to use the mkdosfs or mkfs.vfat commands but these are unable to format a partition of the size that my UMS currently is set at.
Does anyone know of a way to reformat the internal UMS partition back to FAT32?
I eventually got this sorted but it seemed like a fairly complicated process. Firstly I used PITmagic to prepare a PIT file which I flashed using Odin. All the necessary files and instructions por PIT Magic can be found in the links below:
http://forum.xda-developers.com/gal...es/mod-partition-internal-memory-app-t2538947
http://forum.xda-developers.com/showthread.php?t=1916936
By booting into recovery (either CWM or TWRP will work for this) I was able to format some of the partitions but not all. I then used parted which is included in both CWM or TWRP to print out the partition table. Where a partition was not what it should be I removed it then recreated it using the guide I found for a kindle fire in the link below:
http://forum.xda-developers.com/showthread.php?t=1388996
Note that ext4 partitions cant be created in parted so I created them as ext2 partitions and upgraded them as in the guide. The big problem with the FAT32 partition for UMS is that it gets the msftres flag set owing to a bug in parted. However by flashing the same PIT file as before through odin this can be removed.
Now my camera works as the UMS partition mounts properly.
Hello all,
I'm hoping someone can help me with this. Long story short, I've bricked my Prime. I was running TWRP recovery (AndroWook, so 2.6.something?) and KatKiss v30 when things went south... but unbricking is for another day.
I'm more interested in getting some data that didn't make it into my last backup off the /sdcard. I don't have access to the device itself (adb or fastboot, haven't tried APX yet), but I did managed to take an image of /dev/block/mmcblk0p8 via the dd command.
The problem is I can't mount it as a loop device in Linux. The problem that started all this was that KatKiss wouldn't boot... the output of "fdisk -l /dev/block/mmcblk0" suggested that its partition table was corrupted or gone.
Various suggestions on XDA and elsewhere (xmount, kpartx, etc.) haven't allowed me to mount this backup image... I'm wondering if the missing partition table isn't the issue.
[email protected]:~/prime_backup_microsdcard_32G_20151227$ sudo mount -t auto -o
loop tf201-mmcblk0p8.img /mnt
NTFS signature is missing.
Failed to mount '/dev/loop3': Invalid argument
The device '/dev/loop3' doesn't seem to have a valid NTFS.
Maybe the wrong device is used? Or the whole disk instead of a
partition (e.g. /dev/sda, not /dev/sda1)? Or the other way around?
So my thought is to try the following:
1. Create a virtual HD of >27.GB (the size of the backup image).
2. Create a partition of the exact size/dimensions as the backup I have, and ensure I'm able to mount it.
3. Restore the backup to this partition using dd.
4. Profit.
Does this make sense, and if so, what format is /dev/block/mmcblk0p8? Based on the steps to install KatKiss I would have guessed f2fs, but the mount error above makes me think otherwise.
Thanks in advance for your help.
ACP
I have a ZTE Axon 7 (A2017U) and I'm trying to install a stock rom (A2017UV1.1.0B35). I currently have TWRP installed and an unlocked bootloader. I can access the device via fastboot and TWRP recovery mode, but otherwise it will not boot.
I'm stuck in a loop:
If I install my rom via TWRP, when I reboot the phone the /system partition is never mounted. I can see "Failed to mount '/system' (Invalid argument)" written in the log
If I view the /system partition details on TWRP's "Wipe->Advanced wipe->Repair or change file system" screen, the partition is listed as "Present: Yes, Removable: No, Size: 0MB, Used: 0MB, Free: 0MB, Backup size: 0MB
If I format the /system partition using "Wipe" function, the "Formatting system using make_ext4fs" operation succeeds and partition seems to be correctly formatted using ext4, and is listed as "Present: Yes, Removable: No, Size: 5455MB, Used: 10MB, Free: 5444MB, Backup size: 10MB
I'm able to access the partition via the terminal, and if I write a text file to it and reboot the device, I'm able to read it back... It seems the partition is working correctly.
I attempt to install the rom again using TWRP's "Install->Install zip" option, and after ~10 minutes it states that installation was completed successfully.
I reboot the device and the OS does not load. If I access TWRP, I see the /system partition is not mounted and the cycle continues
I've also tried installing other roms (e.g. Lineage OS), but they all fail assert checks, even thought I'm 100% positive they're for the correct device.
I'm tearing my hair out here. I'm a programmer by day and I'm fairly experienced with Unix, but admittedly I don't have much experience working with Android. There's a good chance I'm missing something.
Any idea what's going on, or what to try next? Is there any other information I can provide that might help me troubleshoot the problem?
Hi all.
I'm trying to make a last backup of the stock Android of my Swift 2x before flashing LineageOS. But TWRP (version 3.3.0-0) Seems unable to use the /data partition. I got various messages like:
Could not mount /data and unable to find crypto footer.
Failed to mount '/data' (Invalid Argument)
I tried to format the partition: Wipe -> advanced wipe -> repair or change filesystem -> change filesystem -> ext4 but it didn't change anything.
What's wrong? What can I do?
Thanks a lot for any hint.
bumping this thread as I also ran into this issue.
When using TWRP, the data and system partitions can't be mounted. they also show up as being 0mb in size.
Because of this, no backups can be made and a full system wipe also yields errors.
What I did was change the filesystem to ext2 and then change it back again to ext4.
Doing this at least allowed me to flash crdroid, but making backups still doesn't work.
Whenever i go into TWRP again, it's the same thing again: unable to mount and partitions show up as 0 mb in size.
Anyone know what's causing this?
Wileyfox encrypts there data when you factory reset your device or after youve rooted your device .To get around this you need to do a factory reset using stock recovery once thats done then turn off the device. Then using minimum adb and fastboot type (fastboot boot twrp.img) that will boot your already installed twrp now erase data internal storage etc you'll notice you can finally delete stock os youll see internal storage is showing mbs available again etc worked for me perfectly.
When i was uploading new rom, partitions connect to one. Many roms have a problems with this. Second partition has a 0MB size. I try upload stock rom by flashtool and no results. I want to restore original size. How I can do this? My phone is sony xperia lt30p.
What ROM have you flashed? Have you done a clean install, means having wiped existing Android OS before?
What's the name of the mentioned 0MB partition?
BTW:
Android comes with standard partitons as
/boot
/system
/recovery
/data
/cache
/misc
and their sizes basically are hardcoded.
Never have noticed, heard or read that when a ROM gets flashed a partition with size of 0MB will be created.
Name se
jwoegerbauer said:
What ROM have you flashed? Have you done a clean install, means having wiped existing Android OS before?
What's the name of the mentioned 0MB partition?
BTW:
Android comes with standard partitons as
/boot
/system
/recovery
/data
/cache
/misc
and their sizes basically are hardcoded.
Never have noticed, heard or read that when a ROM gets flashed a partition with size of 0MB will be created.
Click to expand...
Click to collapse
The name second partition is ,,sdcard". Tt isn't sdcard it is internal memory for photos and the like things
jareczex said:
Name se
The name second partition is ,,sdcard". Tt isn't sdcard it is internal memory for photos and the like things
Click to expand...
Click to collapse
Don't confuse /sdard and sdcard.
With regards to /sdcard:
This is NOT a partition on the internal storage memory of the device but rather the ( external ) SD card.
With regards to sdcard:
This simply is a symbolic link to device's /data/media partition what is mounted as /storage/emulated/0
And How i Can restore default memory this partition? Partition with external sdcard has other name.
OK it's the partition named /data/media you're referring to.
If a partitition shows 0MB ( can't get mounted ) then this is because it probably is encrypted. Hence decrypt it. The common method is to perform a Factory Reset. If you've TWRP installed / at your fingertips then decrypting also can be done with TWRP.
This phone is other than many phones
For me, everything you post is crazy stuff: I can not understand what the problem really is.
Since Android is on the market, it has more or less the same partition layout as shown above. And I'm pretty sure your phone has this, too.
I mean about problem, when i am installing rom, show me comunicat ,,Error instaling zip file 'external_sd/android9 sony t/open_gapps-arm-9.0-pico-20201114.zip" and i wanna get rid of this problem, across restore this partition. Do you know, what i have a mean?
My last 2 cents here: Open Gapps isn't a ROM. It's merely a suite of re-compiled Google apps.
FYI: I no longer participate this thread. I hope for you others jump in.
ok, thank you for your help. Information for other people: I can't install apps on this roms, so i want to restore this partition