Hey, I get such a regression as well with boot on md: /dev/md0 on /boot type ext3 (rw,noatime)
Paramétrage de linux-image-2.6.24-1-686 (2.6.24-5) ... Running depmod. Finding valid ramdisk creators. Using mkinitramfs-kpkg to build the ramdisk. Not updating initrd symbolic links since we are being updated/reinstalled (2.6.24-4 was configured last, according to dpkg) Not updating image symbolic links since we are being updated/reinstalled (2.6.24-4 was configured last, according to dpkg) Running postinst hook script /usr/sbin/update-grub. Searching for GRUB installation directory ... found: /boot/grub grub-probe: error: Cannot get the real path of `/dev/sdb' User postinst hook script [/usr/sbin/update-grub] exited with value 1 fstab: /dev/md0 /boot ext3 noatime 0 2 /dev/mapper/bee--raid1-debian--root / ext3 noatime,errors=remount-ro 0 1 /boot/grub/device.map: (hd0) /dev/sda (hd1) /dev/sdb menu.lst: #groot=(hd0,0) -- Loïc Minier