On Wed, Oct 12, 2011 at 11:22 AM, David Miller <david3d at gmail.com> wrote: >>> >> With GPT that's set using flags. This is done in parted with the command >> "set <partition number> raid on" >> > > I just thought of one other thing. You'll want to read up on bios boot if > these large drives are being used for the grub boot loader. > Not booting from them, but is there a problem with kernel autoassembly on large partitions? I see this in dmsg: md: Autodetecting RAID arrays. md: invalid raid superblock magic on sde1 md: sde1 has invalid sb, not importing! But mdadm --assemble /dev/md5 /dev/sde1 works fine after booting. (The array was created with a missing member which hasn't been added yet). -- Les Mikesell lesmikesell at gmail.com