>> > Can I reserve 0% for root on my USB hard drive which is only used for >> > backups and does not contain an OS? >> >> Yes: >> >> mke2fs -m 0 /dev/usb-drive > > Although a value > 0 helps against fragmentation. And when rdiff-backup has > failed because it ran out of space, regressing to the previous sane state > will need a little free space.
Good points. Should 10GB (1% of 1TB) do it? - Grant
