Beartooth wrote: > Very Dumb Question : I have tried about four times now, using an old > pentium2 with two hard drives (20 GB and 30 GB) to install both CentOS 4.4 > and Fedora Core 6 in such a way as to enable dual-boot between them. > > I've tried it by installing 4.4 first, and then FC6. I've tried it by > installing FC6 first, and then 4.4. I've tried it with and without giving > the installer permission to use both drives. > > I always end up with ability to boot only to one OS, usually the one > installed last. Between tries I wipe both drives with DBAN. > > Surely there must be something I'm doing wrong, obvious to many but not to > me. Clue, please? > Just look in the /boot/grub directory. You'll find a file called grub.conf. Probably this only contains one option for the OS installed last. If a file called grub.conf.bak exists as well, copy the lines from there. The /boot folder probably contains the images for both FC6 and Centos. This works if you choose the same boot partition for boot installations (a small 100MB dedicated /boot partition is more than enough) and if you use the /boot partition without clearing when you do the second installation. Please note that the paths in grub.conf are relative to /boot, not to / Good luck.