6.2. Converting to an Ext3 File System
Always use the
e2fsck utility to check your file system before and after using
tune2fs. A default installation of Red Hat Enterprise Linux uses ext4 for all file systems. Before trying to convert, back up all your file systems in case any errors occur.
In addition, Red Hat recommends that you should, whenever possible, create a new ext3 file system and migrate your data to it instead of converting from ext2 to ext3.