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[Q] Installing Thunderkat 4.4.3 on F2FS partitions

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vprasad1
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Question [Q] Installing Thunderkat 4.4.3 on F2FS partitions

Reading more on F2FS trying to formulate a plan of attackx. Latest TWRP 2.7.1.0 is able to repair/format F2FS partitions, so I'm covered there before installing a ROM.

Some ROMs have the boot.img fstab files mount just /data as F2FS (like a Moto X). Others mount all partitions as F2FS (haven't found any threads comparing benefits of doing all vs. just /data)

/META-INF/Com/Google/android/updater-script needs to be modified to format and mount the appopriate partitions as F2FS.

So for a phased approach, say getting toes wet with just setting up /data for F2FS, is it just
1) editing the ThunderKat_manta-KTU84M-20140607.zip boot.img fstab and changing
Code:
/dev/block/platform/dw_mmc.0/by-name/userdata /data ext4 rw,seclabel,nosuid,nodev,noatime,nomblk_io_submit,errors=panic,
data=ordered 0 0
to

Code:
/dev/block/platform/dw_mmc.0/by-name/userdata /data f2fs rw,seclabel,nosuid,nodev,noatime,nomblk_io_submit,errors=panic,
data=ordered 0 0
2) editing the ThunderKat_manta-KTU84M-20140607.zip /META-INF/Com/Google/android/updater-script so that it will now do a destructive format of /data to F2FS
Code:
format("f2fs", "EMMC", "/dev/block/platform/dw_mmc.0/by-name/userdata", "0", "/data");
3) doing the install from TWRP?


Am I on the right track? Miles off?

If I'm on the right track, what's required to do all partitions as F2FS? Would I have to put the ROM to be installed on a USB stick via USB OTG so that the recovery could find it after all the formatting?
 
craigacgomez
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(Last edited by craigacgomez; 8th June 2014 at 09:41 AM.)
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I've been messing with this today and so far, I'm getting permissions issues quite possibly related to SELinux. Issues with SELinux relabeling issues are not allowing writing on F2FS partitions...

EDIT: Confirmed my suspicion that it was SELinux related. Attached screenshot shows CM11 4.4.3 with ThunderKat kernel and data partition mounted as F2FS
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djd338
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(Last edited by djd338; 9th June 2014 at 01:21 PM.)
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Just an idea cause it's so convenient: On my N7 there's an app called "Convert to F2FS" - Play Store. It converts ANY rom to f2fs. It also works for N4 & N5's. Dev states that he'll add other devices if contacted. It works brilliantly & is about a buck & 1/2. It doesn't work on 4.4.3 yet tho

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