E: unable to mount otg - Nexus 4 Q&A, Help & Troubleshooting

I see the error while using twrp, according to log E: unable to mount otg than updating partitions so should i flash custom room with this error as i flashed modded apps with twrp it says done but apps was not installed, how to solve this log error of twrp and what to do this is a problem or only information kindly tell me i should go for flashing ROMs or try some other mods to check that it is flashing it or not.

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[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

Error when flashing hero2ltexx - Could not find 'META-INF/com/google/android/upda...'

I had some issues when trying to flash xposed and ended up formatting my data with TWRP.
After formatting data, I tried flashing root and xposed again. Xposed flashed fine, but root gave me an error. I thought it was because I hadn't gone through the system setup, so I went ahead and went through the setup and tried again but I'm getting the same error in TWRP.
Could not find 'META-INF/com/google/android/update-binary' in the zip file.
Error installing zip file '/external_sd/CF-Auto-Root-hero2lte'hero2ltexx-smg935f.zip'
What should I do?
Also, every time I boot in recovery now it asks me to swipe right as if it was the first time.
Thanks!
Bump. I haven't found a single solution to this on Google.
same problem here
l33t p1mp said:
I had some issues when trying to flash xposed and ended up formatting my data with TWRP.
After formatting data, I tried flashing root and xposed again. Xposed flashed fine, but root gave me an error. I thought it was because I hadn't gone through the system setup, so I went ahead and went through the setup and tried again but I'm getting the same error in TWRP.
Could not find 'META-INF/com/google/android/update-binary' in the zip file.
Error installing zip file '/external_sd/CF-Auto-Root-hero2lte'hero2ltexx-smg935f.zip'
What should I do?
Also, every time I boot in recovery now it asks me to swipe right as if it was the first time.
Thanks!
Click to expand...
Click to collapse
You do not flash CF-Autoroot in TWRP. You extract the zip in Windows and Odin the tar file in order to obtain root.
My problem begins when installing "dm-verity and force encryption disabler". This are the errors it shows:
Could not mount /data and unable to find crypto footer
Failed to mound 'data' (Invalid argument)
Unable to recreate /data/media folder
....
Unable to mount storage
Failed to mount 'data' (Invalid argument)
Unable to mount storage
..
Unable to mount /data/media/TWRP/.twrps
Click to expand...
Click to collapse
sonnax said:
My problem begins when installing "dm-verity and force encryption disabler". This are the errors it shows:
Click to expand...
Click to collapse
Reflash stock rom and start over.

assist plz

.can someone plz help me with the error failed to mount '/efs' (invalid argument)
I've downloaded the latest vs chkd md5s but then when I'm flashing I'm getting error updater process ended with error7,error installing zip file'/external_sd/sd 12-1 7/sd/folder sd 2/sd/sd/rr-n-v5.8.3-20170506-trlrexx-official.zip.
srdryl said:
.can someone plz help me with the error failed to mount '/efs' (invalid argument)
I've downloaded the latest vs chkd md5s but then when I'm flashing I'm getting error updater process ended with error7,error installing zip file'/external_sd/sd 12-1 7/sd/folder sd 2/sd/sd/rr-n-v5.8.3-20170506-trlrexx-official.zip.
Click to expand...
Click to collapse
The partitions seem to be corrupt.
Flash the cf auto root file via odin.
This will restore the stock recovery on your phone.
Then flash twrp via odin.
That's it, this should fix your problem.
You can then flash any rom you want.
Reporting Via N910G.

Need help, can't flash custom rom because of failed to mount '\vendor'

Hello all, I tried flashing my Mi A1 using Evolution-x rom from twrp 3.6.1_9-0, but it failed because there's an error message that said: "Failed to mount '\vendor' (Invalid argument)".
I tried wiping my cache, system, and data to no avail. I tried using "Format Data" on wipe menu, and still displaying the same error.
Is there someone that having this same problem or have the solution? Thank you in advance
just ignore it
Simply ignore it, flashed Project Elixir today with same message, phone is working fine.
That because you are installing a treble compatible rom.
Search it up online.
You can simply ignore the message and reboot or flash gapps or whatever, if needed.

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