I’ve been busy with other things but have spent a few minutes every day for the last several days trying to fix grub2. This program is really annoying me now. I have it courtesy of Ubuntu but will it boot Centos? No.

I have the grub2 menu configured to boot Centos directly, grub2 detects Centos and makes a menu entry for it. This gives “Invalid magic number” when invoked. I also have a menu entry to chainload the Centos grub which gives “Grub disk error”.

There are no useful posts on the fora so I am still stuck.