mkfs isn't a command. mkfs is a prefix. If yu want to put an ext4 partition on a drive you use mkfs.ext4. You might check for that command and check for the other mkfs commands as well. Jude <jdashiel at panix dot com> "There are four boxes to be used in defense of liberty: soap, ballot, jury, and ammo. Please use in that order." -Ed Howdershelt (Author, 1940) .