On Wed, Jun 20, 2012 at 12:11 AM, <m.roth at 5-cent.us> wrote: > Arun Khan wrote: >> Device Boot Start End Blocks Id System >> /dev/sda1 * 1 523 4194304 83 Linux >> Partition 1 does not end on cylinder boundary. >> /dev/sda2 523 1045 4194304 83 Linux >> /dev/sda3 1045 1176 1048576 82 Linux swap / >> Solaris > <snip> > Ok, I see that it's hardware 512b blocks, so you're not running into > issues with 4k hardware blocks. I trust you installed grub on /dev/md0, > which I assume is /dev/sda1 and /dev/sdb1? > >From the wiki instructions, there is no re-installation of GRUB, only a couple of changes in /boot/grub/grub.conf file installed by the regular installation on /dev/sda. During the RAID1 creation process the grub from /dev/sda would mirrored into the RAID1 device and appear on the MBR of both the disks. As I said in the OP, I do see the grub menu with either of the disks "unplugged" i.e. missing. The kernel does boot and the white progress bar goes upto about 50% when the kernel panic occurs. I will turn off the splash and see what comes up on the console. Gut feeling -- I suspect the problem is with the initrd image created with the "dracut" -- Arun Khan