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Can't flash any ROM via CWM (status 7 / efs not mounted)

I was on Darkys ROM for some months without any flashing problems. Now i wanted to change from Darkys ROM 10.1 (Gingerbread 2.3.4) to Galnet MIUI. I had to downgrade to Froyo and then install the CWM zip in CWM. This was NOT succesful. It always says "Installation aborted (Status 7)". Then i tried to install CyanogenMod 7.1. Upgraded to Gingerbread Stock with CWM 3 and when i first flashed it via ODIN the phone first booted in the standart Android CWM display (dont know the name sry). The phone automatically formated cache etc. but then it showed me 2 times "/efs is not mounted". I was able to boot and to open CWM but ALWAYS when i want to install ANY CWM ROM it shows me the message with Status 7 ...
EDIT: The message when i try to install a zip via CWM:
--INSTALLING: SDCARD: update-cm-7.1.0-GalaxyS-signed.zip
Finding update package
Opening update package
Installing update
Checking state of BML/MTD
assert failed: run_program("tmp/updater.sh) == 0
E:Error in /mnt/sdcard/update-cm-7.1.0-GalaxyS-signed.zip
(Status 7)
Installation aborted.
Click to expand...
Click to collapse
How can i mount /efs again and make CWM ROM Flashing able again?
Thank you.

I am not a dev, but I suggest you do a fresh ODIN flash to stock rom or this SIMPLY HONEY ( its got odin version & hence very easy to install ) rom.

I already flashed several (stock) roms... still not working

The first thing you every do before flashing a rom is a nandroid backup.... use this to recover...
I hope to hear oh thanks i didn't remember about that, lol. But i do not expect it...
Do you have any backups, of the /efs maybe? If you do then find out how to put that back on..
An option would be to use adb to try fix it, first try the obvious and try mount the ef, if that doesn't work then tell me what files you have in the efs... and we'll try help you from there.
If you don't know hoe to use adb there is a pinned thread in the general forum, and I have made a there is a basic tutorial in a number of places either search here or google

[Q] CM9 reinstall: make_ext4fs failed on /cache

Hi everybody, I'm quite scary about what I've done today with my tab.
1. I was running under CM 9.1 stable and everything was fine.
2. I backed up my data using ROM Manager and tried today a nightly build of CM 10 from get.cm. I installed it from CWM as written in Cyanogen wiki. Before install I was warned about partition format that wasn't the same as previsouly, and I was asked to choose the update.zip again to enable the ROM flashing to start. CM 10 booted correctly, and it ran very well at first. Then I chose to install Gapps through CWM, the same I did for CM 10.
3. After rebooting, I experienced a bug: the included keyboard kept crashing and was then unusable. I decided then to restore my backup of CM 9 through CWM.
4. I did not encounter any trouble restoring the backup to my old CM 9. But I had no radio, no IMEI, no baseband etc.. in "settings/about the device" and at this point I didn't know that this was because "/radio" wasn't mounted.
5. Now I don't remember what I exactly did but I try wiping caches, restoring again, reinstalling CM 9 stable, reinstalling CM 10 stable, restoring my backup again, flashing the Kernel using Hemsfall but what I remember is:
- I first had problems with /cache
- After that I had the "E:format_volume: "make_ext4fs failed on /cache" message
- My tab reboots if I try to install CM9 stable
- I tried to install a fresh firmware through http://forum.xda-developers.com/showthread.php?t=1133590 but I get stuck at hidden.fs
Now my tab can only boot to CWM or download mode, and whether I choose to flash to CM9 or CM10 I get the message:
assert failed: getprop("ro.product.device")== "galaxtab"...
E: Error in /sdcard/cm-10-nightly....zip
(Status 7)
Installation aborted
I don't know what to do now, and I'm quite desperate right now, please help me to get rid of that "make_ext4fs" error. I'm really afraid.:crying:

When you update to cm10, the mtd partition scheme changed to a new one. Nandroid restore won't work until the partition is made back to the same as when backup was taken.
To be able to run cm again, you need to restock to GB using Odin,
then flash overcome kernel to get cwm.
Only the kernel, not the ROM.
Then use cwm to install cm,
then restore from nandroid.
Follow my signature for overcome guide.
Get GB stock safe v5, the PDF guide, and the overcome kernel.
Jump to page 7.
Sent from my GT-P1000 using xda app-developers app

Thanks you very much, be blessed, it works perfectly using your solution. I felt really really bad, thank you so much!

you are welcome.
You may want to try CM10 again.
Make sure you flash gapps for cm10 only, not gapps for cm9 or cm10.1
It shouldn't be as unstable as you said.

HELP!!!

Hi Guys,
Scene:
Last week I had a rooted phone that could install any custom ROM, Then all of a sudden I could no longer install a custom ROM, I would get a boot loop. So today I un- rooted my phone, then re-rootes however, o now get an status 7 error on any custom ROM. I can however backup my old rooted ROM.
Any idea what has gone wrong that I cannot install a custom ROM, or how I can install a custom ROM?
Any help would be greatly appreciated.

Here is the full error log when installing any ROM:
Finding update package
Opening update package
Installing package
Symlink: some symlinks failed
E:error in /external_sd/ (the ROM name)
(Status 7)
Installation aborted
????:crying:

Try this http://highonandroid.com/android-roms/how-to-fix-status-7-error-with-cwm-recovery-on-rooted-android/

totex71 said:
Try this http://highonandroid.com/android-roms/how-to-fix-status-7-error-with-cwm-recovery-on-rooted-android/
Click to expand...
Click to collapse
Thanks I have tried this but it doesnt work. I get a status 6 error.

OK so i have tried installing with TWRP which works however, I get a bootloop with any ROM I install. I guess its my phone. I will stick to the stock retail en GB rom

[Q] Cant install any custom rom - Green CWM V2.5.1.0 Speedmod ULFK

Hi ,
I have followed the the procedure 【Guide】How To flash ANY Captivate ROM from Stock (including ICS) to upgrade my Froyo 2.1 to any latest rom but it failed to do so due to error
Installing:SDCARD:Rom_name
Finding update package...
Opening Update package.......
Installing update.....
E:Error in /mnt/sdcard/Rom_name
(status 0)
Installation aborted
Click to expand...
Click to collapse
. I have now CWM recovery V2.5.1.0 Speedmod ULFX installed ( Green text one) . I have learned in so many posts that this version of CWM is too old to install recent ROMs . I've tried below rom but couldn't make that work :
CyanFox Rom
omni-MACKAY_ROM-4.4.2-20131217-galaxysmtd
I tired :
Wipe out cash
User data
Please help me on this

byazid said:
Please help me on this
Click to expand...
Click to collapse
Read carefully and follow this Guide. For 4.3.x and 4.4.x based ROMs see installation instructions in corresponding threads.

Val D. said:
Read carefully and follow this Guide. For 4.3.x and 4.4.x based ROMs see installation instructions in corresponding threads.
Click to expand...
Click to collapse
Hi,
Thanks for your reply. I've finally made my way to install [ROM][JB] [4.3] Avatar ROM for Samsung Captivate but it has just too many bugs.My keyboard is not working and keeps on crashing. Now i have CWM 6 installed and which helped this ROM installed. Regarding other ROM i have mentioned here is still giving me the same error.
Any idea?

byazid said:
Any idea?
Click to expand...
Click to collapse
Describe exactly what you did starting from stock 2.1 ROM.

Val D. said:
Describe exactly what you did starting from stock 2.1 ROM.
Click to expand...
Click to collapse
Hi,
I was finally able to flash the AVATAR rom . I messed around with installing latest google apps and which made the keyboard crashed , Now its working like charm ,
However, here is what i did.
1. I followed the guide 【Guide】How To flash ANY Captivate ROM from Stock (including ICS) to upgrade my Eclair 2.1 . Did exactly what was in the tutorial and succeed . ** Just a note- I missed to copy ROM in the SD card , which i managed to do later by mounting USB storage from CWM .
2. I went for flashing and it was always giving me the error when i tried to flash my phone with the rom CyanFox Rom
3. Then i downloaded the rom AVATAR and went for flashing , suddenly the phone rebooted ( Still it did not install the ROM) and a new version of CWM 6 appeared with Blue text . From there i flashed the new ROM and it was a success.
Currently i am running my phone without any problem .
However, I still can not flash below ROM
CyanFox Rom
omni-MACKAY_ROM-4.4.2-20131217-galaxysmtd
do you have any idea on how to make it work ?

- stop asking same questions in 2 different threads, please
- read carefully the Guide in post #2 ant try to understand the process
- read carefully installation instructions for the ROMs you want to try
- avoid installation of experimental/ported ROMs as your first Custom ROM
- be careful what partition setup is needed for the ROM you want to install
- don't change default CM kernel for CM10.2 and up

Status 0
Status 0 means that you have a wrong script (for your phone). The script in "/META-INF/com/google/android" folder. I doubt that it's the ROM's problem. I also flashed CyanFox 4.4 for Galaxy S II. But had to flash CWM 6.0.4.x first. It worked only then, it didn't even flash using CWM 6.0.3.
So I think you can also flash CWM 6.0.4.x on your cappy and try this?

[Q] CM11 Rom wont flash

Hey there,
just tried to flash this ROM to my Ace.
I updated CWM to the required 6.0.5.3_1, wiped data/factory reset and formatted /system.
Everytime I try to install the .zip, I get the "installation aborted" message. No error code, no more information.
Would be awesome to get some help, cause i cant find this problem in the forum, only some with error codes.
I used an earlier version of CM on this device before trying to flash it now.
Greetings

Installed a non-modded version of CM now, which worked fine.
Getting the status 0 error now when installing the original CM gapps. Any solutions?

lolmachine said:
Installed a non-modded version of CM now, which worked fine.
Getting the status 0 error now when installing the original CM gapps. Any solutions?
Click to expand...
Click to collapse
1. Are you using a CM11 compatible recovery?
2. Are you the complete files downloaded? or have you an unstabe internet connection?
Try to donwload the files again