Hi, After an unsuccesfull FC4 -> FC5 upgrade I find myself in the following situation: My server has two IDE disks hda and hdc. When it boots I see "GRUB" alone on the screen and then it stops. I think that means that grub is not able to find stage1_5 or stage2 loader. Grub used to be installed (FC4) on a seperate /boot partition which was a metadevice md3 mirrored on two devices: hda1 and hdc1. When I boot from rescue CD and I and try to reïnstall grub on hda I get an error message: # grub --no-floppy grub> find /grub/stage1 (hd0,0) (hd1,0) grub> root (hd0,0) Filesystem type is ext2fs, partition type 0xfd grub> setup (hd0) Checking if "/boot/grub/stage1" exists... no Checking if "/grub/stage1" exists... yes Checking if "/grub/stage2" exists... yes Checking if "/grub/e2fs_stage1_5"" exists... yes Running "embed /grub/e2fs_stage1_5 (hd0)"... 15 sectors are embedded. succeeded Runing "install /grub/stage1 (hd0) (hd0)1+15 p (hd0,0)/grub/stage2 /grub/grub.conf"... failed Error 22: No such partition I tried swapping the 2 disks, turning hda into hdc and vice versa, but then the word "GRUB" does not even appear on the screen, so probably hdc does not have an MBR at all. I want to be very carefull with hdc because I know it still contains all filesystems with all data, because these are mounted as metadevices under /mnt/sysimage when running from rescue CD. What should I do next? Cheers, Marnix