My MBR became corrupted. I put in the install CD and ran the linux rescue to restore it grub-install etc... Now I get this error when I boot up: Booting 'CentOS (2.6.18-194.el5xen)' root (hd0,0) Filesystem type is ext2fs, partition type 0x83 kernel /boot/xen.gz-2.6. 18-194.el5 I was told that this could be because files were moved, or renamed? How do I solve this without doing a complete reinstall? CentOS is the only OS. I did not try to get partition information. I do know that /boot lives on hda1. From what I can tell, I think everything is there. I made a backup CD of my /boot directory and put it on a CD as a .iso using mkisofs. How do I get the /boot.iso on my system to replace the one that's messed up?