Reverting to an ext2 File System

Because ext3 is relatively new, some disk utilities do not yet support it. For example, you may need to shrink a partition with resize2fs, which does not yet support ext3. In this situation, it may be necessary to temporarily revert a file system to ext2.

To revert a partition, you must first unmount the partition by logging in as root and typing:

umount /dev/hdbX

In the above command, replace hdb with the drive letter and X with the partition number. For the remainder of this section, the sample commands will use hdb1 for these values.

Next, change the file system type to ext2 by typing:

/sbin/tune2fs -O ^has_journal /dev/hdb1

Check the partition for errors by typing:

/sbin/e2fsck -y /dev/hdb1

Then mount the partition again as ext2 file system by typing:

mount -t ext2 /dev/hdb1 /mount/point

In the above command replace /mount/point with the mount point of the partition.

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

You now have an ext2 partition.