Is what the title implies.. if you are running rfs flash the rfs2ext4.zip, it does a nandroid backup, converts to ext4, restores nandroid, clears dalvik, tombstones, and lost+found... then fixes permissions.
Running ext4? Flash the other zip to goto rfs with the same procedure...
[ACS][CWM 3.0.25+]Rfs2Ext4 and Ext42Rfs
Running ext4? Flash the other zip to goto rfs with the same procedure...
[ACS][CWM 3.0.25+]Rfs2Ext4 and Ext42Rfs