On 03/01/11 07:23, Ron Blizzard wrote: > Stupid question (I'm guessing). I'm currently tri-booting (or would > like to be) VectorLinux 6 Deluxe, CentOS 5.5 and an evaluation copy of > Red Hat 6. I'm using CentOS's grub. VectorLinux and CentOS boot fine, > but Red Hat won't load. I think I read somewhere that CentOS's grub is > too old for ext3, 256 (something or others). > > So, is it possible to download and install a newer version of grub for > CentOS 5.5? (This has been a problem with other tri-boot attempts). If > not, is their a way to boot Red Hat from the install DVD? Since it's > only a 30 day evaluation, booting from DVD or CD would be fine, but I > don't see the option. > > Thanks for any pointers. > You don't need to upgrade grub, I'm quite happily dual booting rhel6 GA on a CentOS-5 system (using C-5 GRUB). Only thing I did differently is the rhel6 /boot partition is mounted on an ext3 partition whereas I _think_ the default might be ext4 which, as a wild guess, is probably unsupported by CentOS-5 GRUB ? The rest of the system is quite happily sitting in an ext4 partition using md raid on lvm.