This script will convert your system & data partition to ext 4 filesystem
only use it when your ROM / KERNEL supports ext4 filesystem ! Read description carefully !
example for use :
use it when you try out MCR ROM FR19 (you have to convert to ext3 before) or CM (will auto convert to ext3 when installing) and want to revert back to your older backup (FR18 for example)
restoring your backup in CWM recovery will restore your data but will not convert your filesystem back to ext4, that´s why i made this zip.
so, if you plan reverting to your backup (which supports ext4), simply apply this zip in recovery & restore your backup afterwards ;
back_to_ext4
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This script will convert your system & data partition to ext 3 filesystem
(courtesy of Paul / MoDaCo)
If you have been using a EXT4 ROM and you want to restore a stock ROM that only has EXT3 support, it's a bit of a faff. Introducing BackToEXT3.
This ClockworkMod update zip simply converts your /system and /data partitions back to EXT3. It wipes them both in the process, so you need to have an existing backup / ROM to restore to.
Click to expand...
Click to collapse
example for use :
use it if you are running an ext4 ROM at the moment and want to revert to your stock ROM or CM backup. (which both only support ext3 at the moment)
r1-backtoext3-2x-unsigned
Niceee, just what a lot of people need.
How do I tell if I´m running Ext 3 or 4 ?
Filgaliel said:
How do I tell if I´m running Ext 3 or 4 ?
Click to expand...
Click to collapse
quick on phone :
open "terminal emulator" (free in market) on phone
type in command : "mount"
check output
example (sys+data : ext4) :
Anyone know if the CM7 (offical) kernel has support for EXT4? Then we could use this to convert from EXT3 to EXT4, right?
sibbor said:
Anyone know if the CM7 (offical) kernel has support for EXT4? Then we could use this to convert from EXT3 to EXT4, right?
Click to expand...
Click to collapse
you could use, but ...
CM system partition still running ext 3 ...
Code:
format("ext3", "EMMC", "/dev/block/mmcblk0p1");
mount("ext3", "EMMC", "/dev/block/mmcblk0p1", "/system");
Can we ext4 on cm7 with a custom kernel?
ermacwins said:
Can we ext4 on cm7 with a custom kernel?
Click to expand...
Click to collapse
afaik, no custom CM kernel supports ext4 atm ...
added backtoext3 script from paul in 1.st post ...
75markus said:
added backtoext3 script from paul in 1.st post ...
Click to expand...
Click to collapse
I used this backtoext3 in order to return to my nandroid stock rom v10d backup.
Restore completed, but then on boot, it stucks on the 2nd LG logo (one with blue statusbar underneath it).
Am I missing a step here?
75markus said:
afaik, no custom CM kernel supports ext4 atm ...
added backtoext3 script from paul in 1.st post ...
Click to expand...
Click to collapse
I'm working on a universalEXT4converter. It will convert your filesystem to ext4 and edit your ramdisk (works on every rom). Currently not working and I can't bugfix it (because erm something went wrong hehe ).
But will be ready soon and p999 support will follow too
viluve said:
I used this backtoext3 in order to return to my nandroid stock rom v10d backup.
Restore completed, but then on boot, it stucks on the 2nd LG logo (one with blue statusbar underneath it).
Am I missing a step here?
Click to expand...
Click to collapse
strange ...
it should work for that case ...
you have also changed baseband to newer version , perhaps that´s the reason ?
Benee said:
I'm working on a universalEXT4converter. It will convert your filesystem to ext4 and edit your ramdisk (works on every rom). Currently not working and I can't bugfix it (because erm something went wrong hehe ).
But will be ready soon and p999 support will follow too
Click to expand...
Click to collapse
sounds good
75markus said:
sounds good
Click to expand...
Click to collapse
hehe But first need to fix up my device so I can test this zip. First only data convertion. Strange stuff happend last time : /
Well I'm running the latest Slick2x-G which is CM7 and I've tried a new kernel (Morfic's EXT4 Trinity Test Kernel) from OP of this topic http://forum.xda-developers.com/showthread.php?t=1067939
Converted to EXT4 with CM7 and it seems to be running ok, not having any problems, battery life not too bad either.
One thing I was wondering though was I was to wipe and put a different CM7 based rom on without the above kernel would it automatically convert back to EXT3?
[vertigo] said:
Well I'm running the latest Slick2x-G which is CM7 and I've tried a new kernel (Morfic's EXT4 Trinity Test Kernel) from OP of this topic http://forum.xda-developers.com/showthread.php?t=1067939
Converted to EXT4 with CM7 and it seems to be running ok, not having any problems, battery life not too bad either.
One thing I was wondering though was I was to wipe and put a different CM7 based rom on without the above kernel would it automatically convert back to EXT3?
Click to expand...
Click to collapse
Cm update Script formats system ext3 when installing...
Sent from my LG-P990 using Tapatalk
Hi,
need steps to change rfs to ext4? And does it require data wipe?
I am on SGS I9000 + 2.3.5 stock jvt
Regards.
No data wipe required, flash a kernel with ext4 included, boot into recovery and apply lagfix. Be sure to remove lagfix before flashing another rom in cwm.
Some kernels will require chainfires ext4 tools application.
Go to develop section and have a read up.
no data wipe but for security just make a backup coz sometime it hangs but not everytime.....just convert ur partition.
innovat0r said:
Hi,
need steps to change rfs to ext4? And does it require data wipe?
I am on SGS I9000 + 2.3.5 stock jvt
Regards.
Click to expand...
Click to collapse
Now you are on stock ROM. To convert rfs to ext4 either you have to install a kernel that support ext4 and then go to recovery and then enable lagfix. Or you can go for a custom rom. My advice is to go for custom ROM like Darky...
You can follow this site for more video guide
http://www.hdtechvideo.com
im using gingerdx24
i have error on sd-ext
in cmw cant mount that
and my apps where gone
how to fix this ?
Reflash the kernal and wipe all the data...
Xperian8~ click thanks if it helps...
xpraken said:
im using gingerdx24
i have error on sd-ext
in cmw cant mount that
and my apps where gone
how to fix this ?
Click to expand...
Click to collapse
do configurate it correctly? the partition of sdcard must of the following (Stock kernel)
FAT16/32, EXT2 or EXT3
Custom kernel (Swap is not compulsory)
FAT16/32, EXT2, EXT3 or EXT4, SWAP
and for the mounting of EXT2 and EXT3, you must install the stock modules for stock kernel
I want to flash the stock v20s rom....and iti is in ext3 format right? so my question is....Can I convert it to ext4 or the rom needs to support ext4 format?
ilooze said:
I want to flash the stock v20s rom....and iti is in ext3 format right? so my question is....Can I convert it to ext4 or the rom needs to support ext4 format?
Click to expand...
Click to collapse
The kernel needs to support ext4. The stock kernel does not, so if you want to use ext4 you also need to flash a custom kernel.
I am currently using CWM 5.0.2.6 as it is universally suggested the appropriate for Galaxy Cooper.
The problem is that this version can only format the sd card up to ext3, and not ext4.
I want to try the Ulimatum rom with all its goodies and I need ext4 format in partition for Swapall. My sd card is super fast class 10 u3.
I have read that in many cases 6.x.x.x versions end up in blue screens or fail to reboot.
Although I use minitool for partions, when installing a new rom at some point devs ask to format memory before installation, so even if it was originally in ext4 it reverts back to ext3 after the CWM format with the 5.0.2.6 version.
Which version I can safely use for ext4?
tommycr7 said:
I am currently using CWM 5.0.2.6 as it is universally suggested the appropriate for Galaxy Cooper.
The problem is that this version can only format the sd card up to ext3, and not ext4.
I want to try the Ulimatum rom with all its goodies and I need ext4 format in partition for Swapall. My sd card is super fast class 10 u3.
I have read that in many cases 6.x.x.x versions end up in blue screens or fail to reboot.
Although I use minitool for partions, when installing a new rom at some point devs ask to format memory before installation, so even if it was originally in ext4 it reverts back to ext3 after the CWM format with the 5.0.2.6 version.
Which I can safely use for ext4?
Click to expand...
Click to collapse
You can use the ext4 format with CWM without problems, CWM's version is NOT important, but it can't create this typ of partitions, so you need ypur PC to create an ext4 partition (Gparted, Minitool partiton magic...)
If you want to flash The Ultimatum Rom or another CM7 based ROM you must use a CWM 5.x based recovery.
Use CWM 6.x just for CM11
To use ext4 format >>> all versions are safe
To flash the Ultimatum ROM >>> CWM 5.x