On Mon, 2007-12-10 at 09:35 -0800, Barry Yu wrote: > I've suffering GRUB boot loader failed to boot up frequently in a > system running raid 0 with Intel Matrix storage manager ICH900 chip, > the "/" partition is installed > in /dev/mapper/isw_cghfbiafhf_cts_home10, and the GRUB boot loader is > installed in /dev/mapper/isw_cghfbiafhf_cts (MBR), when the system > failed to boot, I can only see the "GRUB" is displayed on left upper > screen and stayed there without further advancing progress. I boot up > to rescue mode with installation DVD and issued commands as follow; > > chroot /mnt/sysimage > grub-install /dev/mapper/isw_cghfbiafhf_cts > > And I see this message; > /dev/mapper/isw_cghfbiafhf_cts_home10 does not have any corresponding > BIOS drive. > (Obviously GRUB was looking for something > in /dev/mapper/isw_cghfbiafhf_cts_home10 wher the / partition is) > How can I restore the GRUB boot loader? > I will reply 10 hours later if any one needs further input from me. Grub can't do software RAID...that's an OS thing. Your /boot partition MUST be on a either a hardware RAID or a single drive. You can use a software RAID1 for /boot, but that's only because both drives' content will be identical and you're cheating by only using one of the pair. Just make sure you don't write anything to /boot in grub...the software RAID1 must be functional before any writes occur or you will make the RAID1 unmountable as the drives will diverge in content. ---------------------------------------------------------------------- - Rick Stevens, Principal Engineer rstevens@xxxxxxxxxxxx - - CDN Systems, Internap, Inc. http://www.internap.com - - - - LOOK OUT!!! BEHIND YOU!!! - ----------------------------------------------------------------------
