Les Mikesell a écrit : > On 12/4/10 11:34 AM, Niki Kovacs wrote: >> I wasn't sure where to install GRUB, so I chose /dev/md0. > > Grub doesn't know anything about raid. It only works because each component of > a RAID1 looks just like a non-raid filesystem. You should install grub on the > master boot partition of both member disks. Thanks for the quick reply. I googled a bit more about the problem... and stumbled over an excellent article in the CentOS wiki, which adresses exactly my problem: http://wiki.centos.org/HowTos/SoftwareRAIDonCentOS5 Next time I know where to look first :o) Cheers, Niki