On Fri, 28 Sep 2007 08:13:52 -0500 Dave Ihnat <dihnat@xxxxxxxxxx> wrote: > On Fri, Sep 28, 2007 at 02:07:20PM +0100, Alan Cox wrote: > > You can boot from raid1 - but of course its actually booting from the one > > disk in reality not from the mirrored set. > > Ah--*software* RAID1? At boot time, it doesn't know about /dev/mdX. Yes. The software raid volume as /dev/sda1 or similar is understood by the BIOS just fine, and since both have the same data works fine.