In order to revert to an ext2 file system, use the following procedure.
For simplicity, the sample commands in this section use the following value for the block device:
Procedure 4.2. Revert from ext3 to ext2
Unmount the partition by logging in as root and typing:
# umount /dev/mapper/VolGroup00-LogVol02
Change the file system type to ext2 by typing the following command:
# tune2fs -O ^has_journal /dev/mapper/VolGroup00-LogVol02
Check the partition for errors by typing the following command:
# e2fsck -y /dev/mapper/VolGroup00-LogVol02
Then mount the partition again as ext2 file system by typing:
# mount -t ext2 /dev/mapper/VolGroup00-LogVol02 /mount/pointIn the above command, replace /mount/point with the mount point of the partition.
.journalfile exists at the root level of the partition, delete it.
To permanently change the partition to ext2, remember to update the
/etc/fstabfile, otherwise it will revert back after booting.