christian mock <[email protected]> wrote: > I'm seeing what seems to be the very same problem reported in this > bug, just with newer versions of grub-legacy and dmsetup:
> # sh -x /usr/sbin/update-grub > [...] > ++ grub-probe --device-map=/boot/grub/device.map -t device / > + root_device= > # grub-probe --device-map=/boot/grub/device.map -t device / > grub-probe: error: cannot find a device for / (is /dev mounted?). > # mount > /dev/dm-0 on / type ext3 (rw,errors=remount-ro) > [...] > # ls -l /dev/dm-0 /dev/mapper/rootvg-root > brw-rw---- 1 root disk 253, 0 Jun 24 22:06 /dev/dm-0 > lrwxrwxrwx 1 root root 7 Jun 24 22:06 /dev/mapper/rootvg-root -> ../dm-0 I have this too. From reading grub2 bug #550704, its seems this comes from /dev/mapper/* now being symlinks instead of files, and in grub2, grub-probe was fixed to handle that situation. This temporarily resolved the situation (until next reboot, naturally): r...@doggy:~# cd /dev/mapper/ r...@doggy:/dev/mapper# ls control doggy-root doggy-swap_1 r...@doggy:/dev/mapper# ls -l total 0 crw------- 1 root root 10, 59 aoû 4 14:24 control lrwxrwxrwx 1 root root 7 aoû 4 17:23 doggy-root -> ../dm-1 lrwxrwxrwx 1 root root 7 aoû 4 17:18 doggy-swap_1 -> ../dm-0 r...@doggy:/dev/mapper# mv doggy-root doggy-root-bak r...@doggy:/dev/mapper# cp -ad ../dm-1 doggy-root r...@doggy:/dev/mapper# ls -l total 0 crw------- 1 root root 10, 59 aoû 4 14:24 control brw-rw---- 1 root disk 254, 1 aoû 4 17:23 doggy-root lrwxrwxrwx 1 root root 7 aoû 4 17:23 doggy-root-bak -> ../dm-1 lrwxrwxrwx 1 root root 7 aoû 4 17:18 doggy-swap_1 -> ../dm-0 r...@doggy:/dev/mapper# update-grub Searching for GRUB installation directory ... found: /boot/grub Searching for default file ... found: /boot/grub/default Testing for an existing GRUB menu.lst file ... found: /boot/grub/menu.lst Searching for splash image ... none found, skipping ... Found kernel: /vmlinuz-2.6.32-5-amd64 Found kernel: /vmlinuz-2.6.32-3-amd64 Updating /boot/grub/menu.lst ... done (Replace "doggy-root" and "dm-1" by the right values for your disk layout.) I suggest that the grub-probe fix from grub2 be back-ported to grub. -- Lionel -- To UNSUBSCRIBE, email to [email protected] with a subject of "unsubscribe". Trouble? Contact [email protected]
