Reverting to an ext2 File System
If you wish to revert a partition from ext3 to ext2 for any reason, you must first unmount the partition by logging in as root and typing:
umount block_device
Next, change the file system type to ext2 by typing the following command as root:
/sbin/tune2fs -O ^has_journal block_device
Check the partition for errors by typing the following command as root:
/sbin/e2fsck -y block_device
Then mount the partition again as ext2 file system by typing:
mount -t ext2 block_device /mount/point
Next, remove the .journal file at the root level of the partition by changing to the directory where it is mounted and typing:
rm -f .journal
Remember to update the /etc/fstab file.
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