Database Info

Failed CM11 install on Wingray (E: can't mount /cache) Help! :(

I was trying to install CM11 on my Stock unrooted xoom, so I went ahead and followed cyanogenmod.org's guide.
It was great until the flashing CM part. And then, I got this error: System is not bigpart . (something along those lines.)
I found a same guy who had posted a solution to this.
So I go ahead and follow this, and when I flash BigPart TWRP 2700, I get this error on the device: Installation aborted. I used the sideload method for this.
I looked up some forum threads on how to fix this, and there was a thread which told me to install another version of TWRP BigPart, the R.A.H version. I did that by sideload, it installed, and I rebooted into recovery (after wiping dalvik cache). Teamwin loaded up fine, and I headed into the wipe section. According to the solution at ditoforge.com (link above), I had to go to advanced wipe and wipe everything BUT the sdcard. I did that, and I got this error: E: Can't mount /cache. I went ahead and flashed CWM through fastboot again, repeated the process, and no luck. Then, I went into fastboot and flashed TWRP Bigpart 2.7 directly using adb. It worked, though I got a series of errors upon trying to wipe (unable to mount /system, /cache, /data, etc)
I panicked, fearing a brick, and flashed back CWM. Luckily, I had taken a backup of Stock 4.1 and I restored back to that, thankfully finding it working. *phew*
I also tried fastboot format cache but I got this error on cmd:
Code:
C:\Users\User\Desktop\adb>fastboot format cache
formatting 'cache' partition...
Formatting is not supported for filesystem with type ''.
FAILED ()
Strangely, fastboot erase cache seemed to work.
I wanted to call quits, but I love CM11 and I would really like to give this a shot. Any help and tips would be really appreciated. Thank you all in advance.

Bump. Tried to use CWM recovery again after flashing, but now ADB doesnt work in recov. :\

Bump..
Any help would be appreciated..

I formated all partitions individually in TWRP and it worked... I.E, managed to flash CM11.
Hope that helps.
Now I'm back on CM10.1
Sent from my Nexus 5 using XDA Free mobile app

ATZ-007 said:
I formated all partitions individually in TWRP and it worked... I.E, managed to flash CM11.
Hope that helps.
Now I'm back on CM10.1
Sent from my Nexus 5 using XDA Free mobile app
Click to expand...
Click to collapse
I've tried that too, but I can't wipe any partition with TWRP. I get the error "E: Unable to mount /cache" with any partition. Thanks for the help though.

Bump.. help needed please..

Is no one active on the XOOM forums anymore? :|

Bump.

bumping a year later help pls

Same issue... Can't mount /cache
How can I manually format it?
Solved:
fastboot erase cache

[Q] No bootable OS, stuck at boot logo

So I tried flashing CM 12.1 on my Moto G (2013) and it had an error on flashing:
Code:
Detected filesystem ext4 for /dev/block/platform/msm/sdcc.1/by-name/system
Patching system image unconditionally...
blkdiscard failed: Invalid argument
E:Error executing updater binary in zip '/sdcard/cm-12.1-20150429-NIGHTLY-falcon.zip'
It shouldn't do that, I'm not sure why it didn't work. I wiped the system, cache, and data partitions beforehand.
I'm on a Telus XT1032 that I have converted to GPE.
I tried downloading an older nightly, verifying the md5sum, and trying that, same error. I read that for GPE you need to convert the data partition to F2FS from ext4, so I did that. I actually tried a number of different fielsystems for data, system, and cache. Nothing worked.
I flashed a gpt.bin partition table file from XDA that was supposed to fix things, and then the "unmountable" problems started happening. At first data wasn't mounting, but the others were.
Now I've got system as ext4 and cache+data as f2fs. I tried this, which resulted in the data partition being unmountable by TWRP. So I decided to just try to get my stock ROM running again, (Telus 5.02 ROM), using the instructions based on an XDA thread which I can't link since I just made an account (fastboot flash boot.img, system.img_spacechunk.0, etc) and it's stuck at the boot logo screen, and TWRP says the cache and system partitions could not be mounted.
I've made a reddit thread on /r/motog which I also can't link. I thought I'd mention it in case it had any more information that could help, though I've tried to put it all into this post.
If I try to turn it off, it just turns on again and gets stuck on the boot logo, but I can access fastboot and TWRP. I just want something to boot on it.
Can someone help me completely re-image my phone to fix any partition table stuff and format the partitions as the right filesystem and get it to boot?

I tried flashing the latest CM 12.1 nightly zip again, it said the cache wasn't mounting and failed. I reformatted cache as ext4 and retried it again, and it seemed to work.
It works now, though I'm not 100% sure what I did. How do I close this topic?

theRealPadster said:
I tried flashing the latest CM 12.1 nightly zip again, it said the cache wasn't mounting and failed. I reformatted cache as ext4 and retried it again, and it seemed to work.
It works now, though I'm not 100% sure what I did. How do I close this topic?
Click to expand...
Click to collapse
the same problem as yours.I feel so confusing..

help with error unable to mount /data

hey guys
i was installing cm12.1 nightly and i though to fresh install it. so i opened twrp and swiped dalvik cache,cache and data but factory reset failed for some reason.i found out that twrp couldnt format data.so i googled it and found that changing file partition system can overcome this problem so i changed the file partition system to fat. then i tried to install cm12.1 but it got stuck in the boot animation.
then i again tried to factory reset but this time i got error 'unable to mount /data'
i tried cwm and touchwiz recovery but both of them couldnt even format data as it was un mountable
so guys can you help me as my phone is lying dead now and there's nothing i can do about it
if you need any log /screenshot pls let me know
hoping for working solution
having a good day

ZTE Blade L2 Broken Need HELP

Hi all, so i didnt install any custom rom or anything, phone has all stock, today i got message "Encryption unsuccessful" i try to reboot phone if recovery and to factory reset but i got error like " Mount /data error, force format /data mount /data error. i also wipe cache but same. then i downlaod some roms to try only to update but still has error, i did even try from adb but i get msg installation aborted.
so does anyone know can this be fixed or its dead?? Thanks

srsly no one?

Bricked device? TWRP not booting after E:recv error on uevent while formatting

I installed TWRP. When trying to install Magisk it "Failed to mount '/data' (Invalid argument)" and "Unable to mount storage". The same happend while trying to backup. As mentioned in some other threads (like here: https://www.youtube.com/watch?v=T-7neHzSIvc) I tried changing the File System to exFat. (And back to ext4 afterwards) I was stuck in Formatting... screen with "Formatting Data using mkexfatfs... Done." for like 2hrs or so. After that I got "E:recv error on uevent" multiple times.
After 8hrs of waiting, I rebooted. Now I just get to the TWRP starting Screen. Odin Mode is still working, so I tried flashing TWRP 3.1.1.0. Stuck in boot screen, too.
SOLUTION: I just flashed back Stock-Rom.