failed to mount data - Huawei P9 Lite Questions & Answers

Hi,
i have revolution recovery v160317 on my p9 lite and can't restore a backup or install a new rom because the phone always sais "failed to mount /data (invalid option), unable to mount storage"
how can i fix this? there is no OS on the phone at the moment and i want to install AOSPA...
Thanks!

furgy said:
hi,
i have revolution recovery v160317 on my p9 lite and can't restore a backup or install a new rom because the phone always sais "failed to mount /data (invalid option), unable to mount storage"
how can i fix this? There is no os on the phone at the moment and i want to install aospa...
Thanks!
Click to expand...
Click to collapse
you need olddroid's twrp!!!
Read the f****** instructions. Also you need to be at least on b370!

So how can we fix it?

Related

[Q] Problem with CWM / can't flash rom or restore backup

Hello,
i got my root access running yesterday and backed up my apps with Titanium Backup.
Then it was time to flash cm 10.2. I backed up my stock rom and then wiped the data and cache partition.
Then I tried to flash cm, but it gave me an error. Now if I start cwm, the following errors appear:
Clockworkmod Recovery v6.0.3.2
E: Can't mount /cache/recovery/command
E: Can't mount /cache/recovery/log
E: Can't open /chace recovery/log
E: Can't mount cache/recovery/last_log
E: Can't open /cache/recovery/last_log
When I try to flash CM also errors occur.
I also can't restore my backup, the following error appears: MD5 mismatch!
Please help me, it is quite urgent
Thanks A LOT in advance.....
Best regards, Simon
E: I have the I9505, if I forgot something else, please tell me, my start in that day was so terrible and it's only 7o'clock
E2: when I try to flash CM 10.2, the following messages appear:
-- Installing: /external_sd/AROOT/cm-10.2-jfltexx.zip
E: can't mount /cache/recovery/last_install
E: failed to open last_install: Invalid argument
Finding update package....
Opening Update package....
Installing Update....
Install from sdcard complete
Then when I try rebooting it doesn't go further then the CM Logo, which spins...
re: MD5
cH33zBurGer said:
Hello,
i got my root access running yesterday and backed up my apps with Titanium Backup.
Then it was time to flash cm 10.2. I backed up my stock rom and then wiped the data and cache partition.
Then I tried to flash cm, but it gave me an error. Now if I start cwm, the following errors appear:
Clockworkmod Recovery v6.0.3.2
E: Can't mount /cache/recovery/command
E: Can't mount /cache/recovery/log
E: Can't open /chace recovery/log
E: Can't mount cache/recovery/last_log
E: Can't open /cache/recovery/last_log
When I try to flash CM also errors occur.
I also can't restore my backup, the following error appears: MD5 mismatch!
Please help me, it is quite urgent
Thanks A LOT in advance.....
Best regards, Simon
E: I have the I9505, if I forgot something else, please tell me, my start in that day was so terrible and it's only 7o'clock
E2: when I try to flash CM 10.2, the following messages appear:
-- Installing: /external_sd/AROOT/cm-10.2-jfltexx.zip
E: can't mount /cache/recovery/last_install
E: failed to open last_install: Invalid argument
Finding update package....
Opening Update package....
Installing Update....
Install from sdcard complete
Then when I try rebooting it doesn't go further then the CM Logo, which spins...
Click to expand...
Click to collapse
Go into CWM and or Rom Manger and find the option where it says "Ignore MD5"
or something to that effect and try restoring your nandroid backup with MD5 disabled.
The best thing you can do is download TWRP custom recovery for your specific phone's
model (i9505) and restore your nandroid backup using that, it's a lot better than cwm or
rom manager, and its also all "touch" and has large tabs to click on.
TWRP has the MD5 checking as an option which you cannot miss when you are creating
a nandroid backup or restoring one.
Good luck!
I am not 100% sure if cwm/rom manager has that MD5 option which
you can enable or disable. (I forgot, been so long since I used it).
I checked and I couldn't find an option to ignore MD5. Then I looked for it in google (for cwm). There I found, that a backup can be truly corrupted which could seriously harm the phone. Therefore I don't dare trying to restore my backup with another recovery...
Is there a way to fix the problem that cwm has? With beeing unable to mount or open the stuff I mentioned in my first post and therefore somehow hindering my system to start.
Thanks so far!
Wow, this is all really strange. I now formated chache (only works when cwm is rebootet in cwm). Then the errors do not occur again. Then I formated my data again, got stuck, shut my device on and tried again, then it worked. The same thing for installing cm. First try it gets stuck, second try it works....wtf..?
Well now it runs, but I am really not content with how it worked out...

"unable to mount /system" in TWRP

Hello, I was trying to install ROM Arcatarc's EMUmIZERO SUPERLEGGERA. I installed TWRP v2.8.2.0, I did backup of all my data and system, wiped it and tried to install that ROM, but always got message "unable to mount /system". So I tried to restore my backup, but always ended with same message "unable to mount /system". I got this message when I do pretty much everything. Now I have no system and cannot use my phone. Please help.
Place it first with ROOTJOY restores. Then TWRP and play the backup back.
.http://www.mediafire.com/?zmxrc7kxkczppse
When I use twrp (gt i8262) to install any custom rom,it shows "unable to mount "system.
Plz help
bump

E: unable to unmount '/system'

Hey Guys,
Currently I am on AICP 12.0 Rom.. When I try to wipe system,data,dalvic,cache in TWRP, It shows:
E: unable to unmount '/system'
E: unable to wipe system partition..
Please help me on this..
I want to flash a new ROM.
A "thank you" in advance for the help.....
http://forum.xda-developers.com/lenovo-a6000/how-to/solution-mount-data-cache-t3482153
this is my post and i personally tried this while i was having troble with /data error.. try at your risk.!!
Read it carefully.
I am unable to UnMount system.
That I have also tried but didn't worked..
vipul_08 said:
Hey Guys,
Currently I am on AICP 12.0 Rom.. When I try to wipe system,data,dalvic,cache in TWRP, It shows:
E: unable to unmount '/system'
E: unable to wipe system partition..
Please help me on this..
I want to flash a new ROM.
A "thank you" in advance for the help.....
Click to expand...
Click to collapse
First, ensure that your phone is not plugged to computer.
just Go to 'Mount in TWRP recovery menu , select everything and Click 'Unmount', then you can flash any rom without getting that problem.
problem solved , btw even by getting that error , your rom will be flashed

[Possibly bricked] "Failed to mount /data" & no internal storage

Hello everyone!
I have a P9 lite VNS-L31 running 7.0.1. on EMUI 5.0.2..
However during a factory wipe, it stopped booting correctly and I can't get passed from neither bootloader nor recovery.
I have TWRP Revolution v.260317 (TWRP 3.1.0-0) installed and my main problem is that for some reason the phone says that I have no internal storage whatsoever and if I try to wipe the /data partition it fails to mount it (error: Failed to mount /data (Invalid argument)).
I tried any of the methods in videos titled "how to fix unable to mount /data" (sorry, I cannot post links :/ ) but with no luck.
I can't seem to repair nor resize nor change file system of the /data partition. When trying to repair data using e2fsck it gives out the message:
" /sbin/e2fsck -fp process ended with ERROR: 16"
Any ideas?
I can use recovery and fastboot if necessary.
Regards
flash this twrp ;
https://forum.xda-developers.com/huawei-p9lite/development/twrp-t3588356
give me a thanks if it works
Exiatron00 said:
flash this twrp ;
https://forum.xda-developers.com/huawei-p9lite/development/twrp-t3588356
give me a thanks if it works
Click to expand...
Click to collapse
Well, more or less, but I managed to solve it!
I found out that the reason why it said there was 0mb of internal storage was because the bootloader that was previously unlocked turned itself locked, that's why it couldn't mount the /data partition. I just used SKR Tool to unlock the bootloader and after that yes, I installed that version of TWRP that you linked.
I also found out that the Revolution TWRP installed in the eRecovery partition (/recovery2 ?) instead of the normal recovery partition. What image is supposed to be installed in that partition?
That is the second recovery partition (another recovery) aka huaweis last ditch attempt to fix a broken phone. There's no actually problem if u don't have it-as most of the time (in my experience) its utter garbage, but there's no harm in flashing it if u want.
U can extract it from ur update.app file using huawei update extractor.
Exiatron00 said:
That is the second recovery partition (another recovery) aka huaweis last ditch attempt to fix a broken phone. There's no actually problem if u don't have it-as most of the time (in my experience) its utter garbage, but there's no harm in flashing it if u want.
U can extract it from ur update.app file using huawei update extractor.
Click to expand...
Click to collapse
Yeah, I tried to install the RECOVERY2.img that I extracted from the UPDATE.app and it didn't work so I just didn't bother and installed the TWRP again.
But at least everything is solved!
Thanks

Help in rooting G935W8 Oreo 8.0.0

Hello;
I wanted to root my G935W8 Oreo 8.0.0, i already flashed TWRP 3.2.3 with ODIN v3.13.1.
The problem is when i'm on recovery mode and i use TWRP in order to install zip it shows me that internal storage is 0 MB
And when i choose Micro SD card to install Magisk-v19.zip and i confirm flash, it shows me in red:
could not mount /data and unable to find cryptofooter.
failed to mount '/data' (invalid argument)
unable to recreate /data/media folder.
unable to mount /data/media/twrp/.twrp.
Can anyone help me to root it.
Thanks.
gueabd said:
Hello;
I wanted to root my G935W8 Oreo 8.0.0, i already flashed TWRP 3.2.3 with ODIN v3.13.1.
The problem is when i'm on recovery mode and i use TWRP in order to install zip it shows me that internal storage is 0 MB
And when i choose Micro SD card to install Magisk-v19.zip and i confirm flash, it shows me in red:
could not mount /data and unable to find cryptofooter.
failed to mount '/data' (invalid argument)
unable to recreate /data/media folder.
unable to mount /data/media/twrp/.twrp.
Can anyone help me to root it.
Thanks.
Click to expand...
Click to collapse
This is known problem, did you used latest twrp ?
Pls search the forums before posting a new thread..
Follow this post here :
https://forum.xda-developers.com/s7...l-twrp-hero2lte-3-0-0-0-t3334084/post79871347
Sent from my S7 Edge using XDA Labs
gueabd said:
Hello;
I wanted to root my G935W8 Oreo 8.0.0, i already flashed TWRP 3.2.3 with ODIN v3.13.1.
The problem is when i'm on recovery mode and i use TWRP in order to install zip it shows me that internal storage is 0 MB
And when i choose Micro SD card to install Magisk-v19.zip and i confirm flash, it shows me in red:
could not mount /data and unable to find cryptofooter.
failed to mount '/data' (invalid argument)
unable to recreate /data/media folder.
unable to mount /data/media/twrp/.twrp.
Can anyone help me to root it.
Thanks.
Click to expand...
Click to collapse
I know it's a bit late to write to you, but now I got the same phone. The same thing happened to me and I discovered a solution and it is the following: download the latest twrp then the patched version of Odin, it can be version 3.13 or 3.14 which is the final one. Once you have all that in Odin disable the automatic reboot option in (ap) put the twrp.md5.tar, then put the phone in download mode and install it. Once installed, press the power button and volume down for a few seconds until the phone turns off. Now enter the recovery, then go to the format option and write (yes) so that all the information is erased and ready, you can see the internal memory. The only bad thing that I found is that the original system is not Root since the system is damaged, so you have to install the Floyd s7 version 5 rom. It is the most stable version and has Android 10, and you have to root it install later. If you install this rom there are some patches that are to record in 4k at 60 frames and have ar-sticker.

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