umount of /system failed; so such volume - Galaxy Note 4 Q&A, Help & Troubleshooting

Hello,
I'm trying to install a custom rom on my note 4.
I rooted successfully, and installed TWRP through flashify.
First issue I ran into is that the phone got stuck in a bootloop after installing TWRP. All fine I said, it's cool since I want to flash a ROM anyway.
I downloaded the ROM for my device, and after I clicked factory reset and tried installing the ROM, I got the error
Code:
unmount of /system failed; so such volume
I looked around online, some posts said that it's fine, the ROM will install anyways, but that's not the case. The ROM didn't install (the process is finishing way too quickly), and I'm still stuck at bootloops.
I'm running TWRP 3.0.2.0 (newest version), android 5.1.1, on my note 4 N910H.
I have access to TWRP and to download mode, and I can move files between the PC and my phone using an external memory card.
PLEASE HELP ME :crying:

Related

[Q] unable to mount /system or /cache ||| no OS installed ||| sideload wont work

hey guys, im back with stupid questions...
I wanted to upgrade my Nexus 7 32gb UMTS to 4.3 and used the Nexus 7 Toolkit (by Mark Skippen).
I was on a custom Rom and wanted to get back to Stock, so i could just use the update process by Google.
Downloading and Installing the ROM (including wipe of user data) by the Toolkit seemed to work and didnt show any error messages.
As is tried to boot my device into Android I got stuck in the bootloader.
When I tried to start it, a small white message "Booting failed" appeared in the top left corner. Nothing else happend.
I did everything again, no changes.
Next step was to google for a few mins, then I tried to install a custom recovery via Toolkit (which worked) and install a zip-file Rom via sideload.
Connection was there, the files got pushed onto the device but then "An Error Occured" popped up and everything stopped.
Installing a zip via usb-otg seemed promising, but this got me errors like "unable to mount /system" and "unable to mount /cache"...
when I tried to reboot from TWRP or ClockwordMod Recovery (tried the earlier described things with both recovieres) I got a message saying
"there is no OS installed, are you sure you want to reboot?"
Please help me, I really dont know how to fix this and I will need my Nexus 7 in 2 days (thats why I tried to reinstall and polish everything )
thanks for your help, I really appreciate it
Edit: tl;dr
Stuck in fastboot, no OS is installed. sideload / installing ROM via ADB / installing ROM via usb-otg doenst work, most certainly because /system and /cache cant be mounted
so AFAIK the real problem is that I cant mount those partitions, otherwise I could install a ROM and get out of fastboot/recovery easily. (just mounting them in custom recoveries didnt work btw)
IchStelleDummeFragen said:
hey guys, im back with stupid questions...
I wanted to upgrade my Nexus 7 32gb UMTS to 4.3 and used the Nexus 7 Toolkit (by Mark Skippen).
I was on a custom Rom and wanted to get back to Stock, so i could just use the update process by Google.
Downloading and Installing the ROM (including wipe of user data) by the Toolkit seemed to work and didnt show any error messages.
As is tried to boot my device into Android I got stuck in the bootloader.
When I tried to start it, a small white message "Booting failed" appeared in the top left corner. Nothing else happend.
I did everything again, no changes.
Next step was to google for a few mins, then I tried to install a custom recovery via Toolkit (which worked) and install a zip-file Rom via sideload.
Connection was there, the files got pushed onto the device but then "An Error Occured" popped up and everything stopped.
Installing a zip via usb-otg seemed promising, but this got me errors like "unable to mount /system" and "unable to mount /cache"...
when I tried to reboot from TWRP or ClockwordMod Recovery (tried the earlier described things with both recovieres) I got a message saying
"there is no OS installed, are you sure you want to reboot?"
Please help me, I really dont know how to fix this and I will need my Nexus 7 in 2 days (thats why I tried to reinstall and polish everything )
thanks for your help, I really appreciate it
Edit: tl;dr
Stuck in fastboot, no OS is installed. sideload / installing ROM via ADB / installing ROM via usb-otg doenst work, most certainly because /system and /cache cant be mounted
so AFAIK the real problem is that I cant mount those partitions, otherwise I could install a ROM and get out of fastboot/recovery easily. (just mounting them in custom recoveries didnt work btw)
Click to expand...
Click to collapse
Well . what you can try for now is download the latest factory images and flash them manually via fastboot .. See how that turns out. You can install any ROM via fastboot .. No issues what so ever.
In the factory images there will be a bootloader IMG.. Flash that first and then flash the remaining images ( I suggest manually or via the .bat or .sh files ) and then see if you can boot up android. Mostly should be possible.
And did you try rebooting inspire of the message " no is installed " appearing on the screen ? Maybe it will boot a ROM ? I remember facing this message after just flashing a rom sometimes. So don't worry.
As long as you have access too fast boot everything can be fixed at least w.r.t software.
Red Devil said:
Well . what you can try for now is download the latest factory images and flash them manually via fastboot .. See how that turns out. You can install any ROM via fastboot .. No issues what so ever.
In the factory images there will be a bootloader IMG.. Flash that first and then flash the remaining images ( I suggest manually or via the .bat or .sh files ) and then see if you can boot up android. Mostly should be possible.
Click to expand...
Click to collapse
It worked!!! Thank you so much.
Still wondering why it didnt flash the factory image as a whole while flashing every part step by step worked perfectly fine...
Red Devil said:
And did you try rebooting inspire of the message " no is installed " appearing on the screen ? Maybe it will boot a ROM ? I remember facing this message after just flashing a rom sometimes. So don't worry.
Click to expand...
Click to collapse
Yes, tried booting, but the device just restarted and returned to fastboot mode.
many thanks again
help plz
this is where I am at as well how do you get out of this. kinda a noob at this so a step by step would be great thanks

[Q] [i9505] Possibly bricked or TWRP messed it up [SOLVED!]

I've had problems with my phone for a while now, no stable roms or mods, phone doesn't wake up from deep sleep, lagg....
So I got in to recovery mode (latest TWRP) a few hours ago and I got asked for a password? :S didn't know that TWRP had a protection function.. I pressed BACK and that was that, I got in to the menu and pressed INSTALL but the SDCARD was empty?
Using the filemanager in TWRP the internal SDCARD was still empty, but the microsd worked fine.
After rebooting the phone I got stuck on the sgs4 screen, so the rom didn't boot.
I went back to recovery and wiped everything possible and formatted the sdcard, afterward I installed a rom and rebooted.
Still the same problem, got stuck on the sgs4 screen.
In TWRP the sdcard was still empty. So I downloaded a odin flashable rom and flashed the phone through odin but got stuck at the same place.
I now have the stock recovery and when selecting "apply update from external storage", I get the error message:
"E:failed to mount /sdcard (No such file or directory)"
Is there any function in a TWRP/CWM or modded recovery that can fix the internal sdcard?
Or perhaps repartition everything?
Just to let everyone know, the flashing in odin and TWRP worked as usual, so the system/data etc partition as fine.
Guess it's the sdcard partition that's corrupted OR if TWRP somehow locked the sdcard because I didn't enter a password?
I could be wrong but then I'm completely clueless.
Appreciate some help, thanks!
EDIT: [SOLUTION]
Since there is no way to use adb in recoverymode or downloadmode (I wasn't able to), you need to use odin.
1. Enter download mode and flash a clean rom through odin.
2. Enter download mode again and flash TWRP through odin.
3. Wipe DATA through TWRP and reboot.
4. Factory Reset through TWRP and reboot.
5. Done.
Seems like this is the wrong place to ask, but I think I found the problem.
It was TWRP with their "password protection" that cause the problem.
Downgrading to other versions wont help as it did for others with the transformer pad.
I did a search for "TWRP PASSWORD" and it looks like TWRP has a bug.
This is what I get in TWRP:
E:Mount: Unable to find partition for path '/sdcard'
EUnMount: Unable to find partition for path '/sdcard'
This is definitely the last time I'll use TWRP.
When flashing CWM, I'm unable to boot into recovery, only works with TWRP..
I'll keep posting here until I solve this if anyone get the same problem.
http://forum.xda-developers.com/showpost.php?p=44007919&postcount=1
In the link above, someone manage to fix their phone with the same problem I have, even though it's the nexus7.
So what I've learned is that I shouldn't let TWRP root my phone.
I need a system.img file, could it be just the system parititon? Don't know how to get that file, so could use some help.
EDIT:
I'm going to unpack a odin package, found a system.img.ext4 in there, guess that wont help so have to find one with stock filesystem.

[Q] Can't flash ROM or restore backup

Hello there.. I normally don't have a problem figuring out what to do but I'm totally stuck here. I have a Sprint Galaxy S4 SPHL720T. I was rooted and running a custom ROM. I was having issues with the wifi so I decided to flash back to GPE 5.0.1 here from the xda forums. I am running twrp v2.8.4.0. I made a backup and wiped system/data/cache and dalvik. I went to install JFLTE-GPE-20150303 (LRX22C) from ultimarom.com via here at XDA. It said zip is corrupt. So i redownloaded on my PC and transferred it to my sd card. Still said corrupt. So I downloaded a different ROM on my PC and moved to SD. Still said corrupt. I tried to flash a GAPPS package and it worked but no ROMS I tried would. I tried to install my latest backup through recovery. It said MD5 doesn't match. If I hit reboot in twrp it prompts to install superuser because the phone doesn't appear to be rooted. If I hit that it runs the script for about 2 seconds then reboots. It won't boot into the OS as there is no OS and if I reboot into recovery it still gives me the "install su" prompt at the reboot screen. So then I hooked up into ODIN and download mode and flashed "CF-Auto-Root-jflterefreshspr-jflterefreshspr-sphl720t.tar.md5" and "openrecovery-twrp-2.8.4.0-jfltespr.tar". Still having the same issues. I have no idea what to do at this point. Any help would be GREATLY appreciated as I need my phone for work and play .
Thanks,
Aaron

Trying to install cyanogenmod to nexus 4, I cannot flash it through TWRP recovery

I am trying to flash my N4 with cyanogenmod following the official wiki.
I'm at the point where I've installed TWRP into recovery, I've wiped everything (I've even formatted them since I couldn't wipe all of it initially), and the only error I see is "unable to mount /usb-otg".
Then, I've "installed" the CN zip files for the 13 and 12 versions, none of them works in the sense that when I reboot the system, I'm always coming back to TWRP.
What's wrong? Any suggestion?
Thanks
I've the same problems with my nexus 4
gerardgerard said:
I am trying to flash my N4 with cyanogenmod following the official wiki.
I'm at the point where I've installed TWRP into recovery, I've wiped everything (I've even formatted them since I couldn't wipe all of it initially), and the only error I see is "unable to mount /usb-otg".
Then, I've "installed" the CN zip files for the 13 and 12 versions, none of them works in the sense that when I reboot the system, I'm always coming back to TWRP.
What's wrong? Any suggestion?
Thanks
Click to expand...
Click to collapse
Hi gerardgerard,
I also wanted to flash my Nexus 4 with Cyanogenmod 12.1. So I installed TWRP into recovery and wiped everything, like it's explained in the wiki. I can also see the error "unable to mount /usb-otg". When I want to reboot the system I always get back to TWRP. Cyanogenmod doesn't boot correctly. Did you find a solution for the problem?
same problem
Hi
I'm having the same problem. As follows:
Cause (my mistake): I have been using Cyanogen-mod nightlies for a couple of months on my Nexus 4, and made the grave mistake of leaving the phone to upgrade one night but without it being plugged in properly - and it ran out of power part way through! (At least, that's what I think happened).
Fortunately, it would boot into bootloader and I could use adb/fastboot. I (re)installed TWRP 2.8.7.0 (from my Mac, using fastboot). And that works fine - I can boot into twrp ok.
Next I loaded the latest nightly from cm (using fastboot - is this what people call sideloading?) and used twrp to install it. It goes through the installation fine (the only error message is that it can't mount /usb-otg). But when I reboot it just goes back to twrp.
I then tried installing the earlier cm nightly that I know worked, but with the same result.
Finally, before I first installed cm I did a backup (using twrp), and I have tried recovering that. It seems to do all the right things, but again when I reboot it just goes back to twrp.
Any suggestions would be welcome.
Thanks
J
Flash back to a completely stock ROM and run through the set up to make sure everything works. Then copy CM to the phone, reboot to fastboot, flash twrp, immediately boot into recovery using the volume and power button without leaving fastboot, wipe data, cache, system, flash CM, reboot.
If the phone will not boot after flashing a stock ROM, boot to fastboot, flash the userdata.img file, and immediately go to stock recovery without leaving fastboot, wipe data/cache, reboot.
It works now!
I managed to fix the problem ... I found this guide for the Nexus 5:
http://forum.xda-developers.com/google-nexus-5/general/tutorial-how-to-flash-factory-image-t2513701
and I applied those instructions. It didn't work first time, so I just repeated them and now it's working. I used the 5.1.1 stock downloaded from https://developers.google.com/android/nexus/images#occam.
I guess this is what audit13 means in their post - so thanks are due there.
I will next reinstall twrp and cm and I don't expect any problems with that (having done it successfully before).
Smaje

malfunction

Hi Guys.
I recently noticed that I couldn't create a backup with TWRP. Firstly, I thought it was a TWRP problem, as I had some issues installing it after the B588 update. So I flashed it again, but nothing changed. When my back up would reach about 70%, it would give me a reboot. Then I tried to install B588 again, to fix any errors. Although, I flashed it correctly, when I tried to restore the back up I had through Huawei's app, I got an unexpected reboot. So I decided to intall sokkoban's rom. During my first attempt to copy the zip files, it stoped the process. So I took the files directly to the SD card (with an adapter and not via usb cable). I re-flashed TWRP and then entered recovery, to flash the zip files (I am only able to enter custom recovery, only through xposed modules and adb commands since my latest update: 01-01-2017). After managing to enter TWRP, I tried to clear everything, but I got an error:
The message was: mkfs.fat /dev/block/mmcblk1p1 process ended with ERROR: 1 Unable to wipe sdcard. (just in case the image is not visible)
Can anyone help with this?
Currently I am trying to install the ROM ...
spirto82 said:
Hi Guys.
I recently noticed that I couldn't create a backup with TWRP. Firstly, I thought it was a TWRP problem, as I had some issues installing it after the B588 update. So I flashed it again, but nothing changed. When my back up would reach about 70%, it would give me a reboot. Then I tried to install B588 again, to fix any errors. Although, I flashed it correctly, when I tried to restore the back up I had through Huawei's app, I got an unexpected reboot. So I decided to intall sokkoban's rom. During my first attempt to copy the zip files, it stoped the process. So I took the files directly to the SD card (with an adapter and not via usb cable). I re-flashed TWRP and then entered recovery, to flash the zip files (I am only able to enter custom recovery, only through xposed modules and adb commands since my latest update: 01-01-2017). After managing to enter TWRP, I tried to clear everything, but I got an error:
The message was: mkfs.fat /dev/block/mmcblk1p1 process ended with ERROR: 1 Unable to wipe sdcard. (just in case the image is not visible)
Can anyone help with this?
Currently I am trying to install the ROM ...
Click to expand...
Click to collapse
This error is quite normal.....I have got this many times wiping everything and this isn't an issue...
With reboot during restore I think that your backup is corrupt at some point

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