On Apr 11, 2012, at 8:20 PM, Ljubomir Ljubojevic wrote: > 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. While this most likely works, I went a diff route. Based on this article which is Cliff noted below, I was able to get it working. http://bugs.centos.org/view.php?id=5400 The latest dracut fixes the issue but I rebuilt initramfs to be safe. So my order of operation; 1 - install Centos 6.1 with a software raid 1 config then rebooted of course 2 - yum update 2 - cd /boot 3 - mv initramfs-2.6.32-220.7.1.el6.x86_64.img initramfs-2.6.32-220.7.1.el6.x86_64.img.O 4 - mkinitrd /boot/initramfs-2.6.32-220.7.1.el6.x86_64.img 2.6.32-220.7.1.el6.x86_64 5 - reboot Hope this helps any futures comrades in arms. - aurf