On 04/12/2012 12:57 AM, Patrick Lists wrote: > On 04/12/2012 12:46 AM, aurfalien wrote: >> Hi all, >> >> Taken from this link; >> >> https://www.centos.org/modules/newbb/print.php?form=1&topic_id=34988&forum=55&order=ASC&start=0 >> >> Seems like I am having the same issue. >> >> I assigned my boot loader to be on /dev/md0 rather then the default of /dev/sda1 > > Not sure if this is valid for CentOS but on Fedora 15 I had to set the > metadata to version 0.90 when creating the /boot array. Without it (so > using metadata version 1.0 on /dev/md0 aka /boot) it would not boot. > Patrick, you are spot one. This is a must, and default for CentOS is 1.2 I think. There is no conversion, you can only backup data from partition on md0 and recreate md0 with: mdadm --create /dev/md9 --level=1 --raid-disks=2 /dev/sdj1 /dev/sdl1 --metadata=0.90 return data and reinstall grub on sda AND sdb. -- Ljubomir Ljubojevic (Love is in the Air) PL Computers Serbia, Europe Google is the Mother, Google is the Father, and traceroute is your trusty Spiderman... StarOS, Mikrotik and CentOS/RHEL/Linux consultant