On Mon, Aug 12, 2013 at 11:21 AM, John R Pierce <pierce at hogranch.com> wrote: > >> I know there are different methods for formatting large disks but this one >> doesn't even seem to show up as a/dev/ device. I supplied the dmesg output >> I see when I plug in the device. Is this a limitation of CentOS5? Do I need >> some additional package / driver / update? > > CentOS 5 does not support GPT disks, and MBR disks have an absolute > maximum size of 2TB Did you mean does not support booting from gpt, or does not support them on USB? I have a pair of these running in in software raid one on an old 32-bit box running CentOS5. # parted /dev/sde print Model: ATA Hitachi HDS72303 (scsi) Disk /dev/sde: 3001GB Sector size (logical/physical): 512B/512B Partition Table: gpt Number Start End Size File system Name Flags 1 1049kB 3001GB 3001GB ext3 raid -- Les Mikesell lesmikesell at gmail.com