Hello, i have a similar problem with grub when i try to update-grub i am working in a live-system, chrooted in a bootstraped system and try to install grub:
# dpkg -l | grep grub ii grub 0.97-39 GRand Unified Bootloader (Legacy version) ii grub-common 1.96+20080601-2 GRand Unified Bootloader, version 2 (common # ls -l sd* brw-r--r-- 1 root root 8, 0 2008-06-09 17:56 sda brw-r--r-- 1 root root 8, 1 2008-06-09 17:56 sda1 brw-r--r-- 1 root root 8, 16 2008-06-09 17:56 sdb brw-r--r-- 1 root root 8, 17 2008-06-09 17:56 sdb1 # mount /dev/md1 on / type ext3 (rw,nosuid,errors=remount-ro) proc on /proc type proc (rw) sysfs on /sys type sysfs (rw) none on /proc type proc (rw) proc on /proc type proc (rw) none on /proc type proc (rw) /dev/md0 on /boot type ext3 (rw) # cat device.map (hd0) /dev/sda (hd1) /dev/sdb /boot/grub# update-grub Searching for GRUB installation directory ... found: /boot/grub Probing devices to guess BIOS drives. This may take a long time. grub-probe: error: Cannot find a GRUB drive for /dev/.tmp.md0. Check your device.map. # grub-probe -t device /boot /dev/.tmp.md0 # grub-probe -t drive /boot grub-probe: error: Cannot find a GRUB drive for /dev/.tmp.md0. Check your device.map. # cat /proc/mdstat Personalities : [linear] [raid0] [raid1] md4 : active raid1 sda8[0] sdb8[1] 209800768 blocks [2/2] [UU] md3 : active raid1 sda6[0] sdb6[1] 21237824 blocks [2/2] [UU] md2 : active raid1 sda3[0] sdb3[1] 738880 blocks [2/2] [UU] md1 : active raid1 sda2[0] sdb2[1] 248896 blocks [2/2] [UU] md0 : active raid1 sda1[0] sdb1[1] 48064 blocks [2/2] [UU] unused devices: <none> thanks, michael