Fix for Centos 6.3 Software RAID not loading GRUB on /dev/md0

If you’ve just installed CentOS 6 on software RAID and it won’t boot off /dev/md0, try the following:

1. Using your CentOS install media, boot in to rescue mode
2. Once you are booted in to rescue mode, select the “start shell” option
3. Enter the following command:

chroot /mnt/sysimage

4. Re-install GRUB

grub-install /dev/md0

5. Reboot

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Comments

This is the only thing that worked for me. Thanks for posting! CentOS should do this automatically.

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