On Sat, Jul 10, 2010 at 3:45 AM, Sthu Deus <sthu.deus@gmail.com> wrote: > Thank You for Your time and answer, Tom: > >> You can use all of an ext4's features on an ext2/ext3 system / upgrade >> an ext2/ext3 filesystem to ext4 with tune2fs. > > And there is no any disadvantages comparing it was made w/ the > mkfs.ext4 help or tune2fs? You're welcome. None that I know of. A "tune2fs -l" returns the same data.