update-grub fails with multipath-tools (debian 6)

[Rémi]

Hi,

On a debian squeeze server configured with multipath-tools and
multipath-tools-boot for boot on san,
update-grub fails with the message
/usr/sbin/grub-probe: error: cannot find a GRUB drive for
/dev/mapper/mpath0-part1.  Check your device.map.

I tried to modify the device.map file, but I always got the same error.

note : I installed dmsetup package from sid on this server to solve
the uuid problem describe here
http://lists.alioth.debian.org/pipermail/pkg-lvm-maintainers/2011-February/003472.html

any help would be very welcome

regards,

Rémi


--------------------------------------------------
$ update-grub
Generating grub.cfg ...
/usr/sbin/grub-probe: error: cannot find a GRUB drive for
/dev/mapper/mpath0-part1.  Check your device.map.

$ cat /boot/grub/device.map
(hd0)   /dev/disk/by-id/cciss-3600508b1001038363520202020200003
(hd1)   /dev/disk/by-id/scsi-mpath0
(hd2)   /dev/disk/by-id/scsi-mpath1
(hd3)   /dev/disk/by-id/scsi-3600508b4000548d90000b00000a90000
(hd4)   /dev/disk/by-id/scsi-3600508b4000548d90000b000002c0000
(hd5)   /dev/sda
(hd6)   /dev/sdd


--------------------------------------------------

$ cat /etc/fstab
# /etc/fstab: static file system information.
#
# Use 'blkid' to print the universally unique identifier for a
# device; this may be used with UUID= as a more robust way to name devices
# that works even if disks are added and removed. See fstab(5).
#
# <file system> <mount point>   <type>  <options>       <dump>  <pass>
proc            /proc           proc    defaults        0       0
# / was on /dev/sda1 during installation
UUID=6542dfdf-ef98-46e5-b473-142c216cc42d /               ext4
errors=remount-ro 0       1
# /data was on /dev/sdb1 during installation
UUID=92164462-d89f-4925-af44-0bb851c0b902 /data        ext4
defaults        0       2
# /var was on /dev/sda2 during installation
UUID=cc39cc25-7e51-4400-952d-f1e155d4f27b /var            ext4
defaults        0       2
# swap was on /dev/cciss/c0d0p1 during installation
UUID=b0f9230c-572a-4098-81dc-b952920dd9b0 none            swap    sw
           0       0
/dev/scd0       /media/cdrom0   udf,iso9660 user,noauto     0       0

--------------------------------------------------

$ grub-install hd1
/usr/sbin/grub-probe: error: cannot find a GRUB drive for
/dev/mapper/mpath0-part1.  Check your device.map.
Auto-detection of a filesystem of /dev/mapper/mpath0-part1 failed.
Please report this together with the output of "/usr/sbin/grub-probe
--device-map=/boot/grub/device.map --target=fs -v /boot/grub" to
<address@hidden>

$ /usr/sbin/grub-probe --device-map=/boot/grub/device.map --target=fs
-v /boot/grub
/usr/sbin/grub-probe: info: the size of hd0 is 143305920.
/usr/sbin/grub-probe: info: the size of hd0 is 143305920.
/usr/sbin/grub-probe: info: the size of hd0 is 143305920.
/usr/sbin/grub-probe: info: the size of hd1 is 16777216.
/usr/sbin/grub-probe: info: the size of hd1 is 16777216.
/usr/sbin/grub-probe: info: the size of hd1 is 16777216.
/usr/sbin/grub-probe: info: the size of hd1 is 16777216.
/usr/sbin/grub-probe: info: the size of hd2 is 20971520.
/usr/sbin/grub-probe: info: the size of hd2 is 20971520.
/usr/sbin/grub-probe: info: the size of hd2 is 20971520.
/usr/sbin/grub-probe: info: the size of hd3 is 20971520.
/usr/sbin/grub-probe: info: the size of hd3 is 20971520.
/usr/sbin/grub-probe: info: the size of hd3 is 20971520.
/usr/sbin/grub-probe: info: the size of hd4 is 16777216.
/usr/sbin/grub-probe: info: the size of hd4 is 16777216.
/usr/sbin/grub-probe: info: the size of hd4 is 16777216.
/usr/sbin/grub-probe: info: the size of hd4 is 16777216.
/usr/sbin/grub-probe: info: the size of hd5 is 16777216.
/usr/sbin/grub-probe: info: the size of hd5 is 16777216.
/usr/sbin/grub-probe: info: the size of hd5 is 16777216.
/usr/sbin/grub-probe: info: the size of hd5 is 16777216.
/usr/sbin/grub-probe: info: the size of hd6 is 20971520.
/usr/sbin/grub-probe: info: the size of hd6 is 20971520.
/usr/sbin/grub-probe: info: the size of hd6 is 20971520.
/usr/sbin/grub-probe: info: the size of hd0 is 143305920.
/usr/sbin/grub-probe: info: the size of hd0 is 143305920.
/usr/sbin/grub-probe: info: the size of hd0 is 143305920.
/usr/sbin/grub-probe: info: the size of hd1 is 16777216.
/usr/sbin/grub-probe: info: the size of hd1 is 16777216.
/usr/sbin/grub-probe: info: the size of hd1 is 16777216.
/usr/sbin/grub-probe: info: the size of hd1 is 16777216.
/usr/sbin/grub-probe: info: the size of hd2 is 20971520.
/usr/sbin/grub-probe: info: the size of hd2 is 20971520.
/usr/sbin/grub-probe: info: the size of hd2 is 20971520.
/usr/sbin/grub-probe: info: the size of hd3 is 20971520.
/usr/sbin/grub-probe: info: the size of hd3 is 20971520.
/usr/sbin/grub-probe: info: the size of hd3 is 20971520.
/usr/sbin/grub-probe: info: the size of hd4 is 16777216.
/usr/sbin/grub-probe: info: the size of hd4 is 16777216.
/usr/sbin/grub-probe: info: the size of hd4 is 16777216.
/usr/sbin/grub-probe: info: the size of hd4 is 16777216.
/usr/sbin/grub-probe: info: the size of hd5 is 16777216.
/usr/sbin/grub-probe: info: the size of hd5 is 16777216.
/usr/sbin/grub-probe: info: the size of hd5 is 16777216.
/usr/sbin/grub-probe: info: the size of hd5 is 16777216.
/usr/sbin/grub-probe: info: the size of hd6 is 20971520.
/usr/sbin/grub-probe: info: the size of hd6 is 20971520.
/usr/sbin/grub-probe: info: the size of hd6 is 20971520.
/usr/sbin/grub-probe: info: changing current directory to /dev.
/usr/sbin/grub-probe: info: changing current directory to dri.
/usr/sbin/grub-probe: info: changing current directory to snd.
/usr/sbin/grub-probe: info: changing current directory to hpilo.
/usr/sbin/grub-probe: info: changing current directory to net.
/usr/sbin/grub-probe: info: changing current directory to shm.
/usr/sbin/grub-probe: info: changing current directory to bsg.
/usr/sbin/grub-probe: info: changing current directory to mapper.
/usr/sbin/grub-probe: error: cannot find a GRUB drive for
/dev/mapper/mpath0-part1.  Check your device.map.


--------------------------------------------------


$ ll /dev/disk/*
/dev/disk/by-id:
total 0
lrwxrwxrwx 1 root root 16  4 avril 15:59
cciss-3600508b1001038363520202020200003 -> ../../cciss/c0d0
lrwxrwxrwx 1 root root 18  4 avril 15:59
cciss-3600508b1001038363520202020200003-part1 -> ../../cciss/c0d0p1
lrwxrwxrwx 1 root root 10  4 avril 15:59 dm-name-mpath0 -> ../../dm-1
lrwxrwxrwx 1 root root 10  4 avril 15:59 dm-name-mpath1 -> ../../dm-4
lrwxrwxrwx 1 root root 10  4 avril 15:59
dm-uuid-mpath-3600508b4000548d90000b000002c0000 -> ../../dm-0
lrwxrwxrwx 1 root root 10  4 avril 15:59
dm-uuid-mpath-3600508b4000548d90000b00000a90000 -> ../../dm-3
lrwxrwxrwx 1 root root 10  4 avril 15:59
dm-uuid-part1-mpath-3600508b4000548d90000b000002c0000 -> ../../dm-1
lrwxrwxrwx 1 root root 10  4 avril 15:59
dm-uuid-part1-mpath-3600508b4000548d90000b00000a90000 -> ../../dm-4
lrwxrwxrwx 1 root root 10  4 avril 15:59
dm-uuid-part2-mpath-3600508b4000548d90000b000002c0000 -> ../../dm-2
lrwxrwxrwx 1 root root  9  4 avril 15:59
scsi-3600508b4000548d90000b000002c0000 -> ../../sdc
lrwxrwxrwx 1 root root 10  4 avril 15:59
scsi-3600508b4000548d90000b000002c0000-part1 -> ../../sdc1
lrwxrwxrwx 1 root root 10  4 avril 15:59
scsi-3600508b4000548d90000b000002c0000-part2 -> ../../sdc2
lrwxrwxrwx 1 root root  9  4 avril 15:59
scsi-3600508b4000548d90000b00000a90000 -> ../../sdb
lrwxrwxrwx 1 root root 10  4 avril 15:59
scsi-3600508b4000548d90000b00000a90000-part1 -> ../../sdd1
lrwxrwxrwx 1 root root 10  4 avril 15:59 scsi-mpath0 -> ../../dm-0
lrwxrwxrwx 1 root root 10  4 avril 15:59 scsi-mpath0-part1 -> ../../dm-1
lrwxrwxrwx 1 root root 10  4 avril 15:59 scsi-mpath0-part2 -> ../../dm-2
lrwxrwxrwx 1 root root 10  4 avril 15:59 scsi-mpath1 -> ../../dm-3
lrwxrwxrwx 1 root root 10  4 avril 15:59 scsi-mpath1-part1 -> ../../dm-4
lrwxrwxrwx 1 root root 16  4 avril 15:59 wwn-0x600508b100103836 ->
../../cciss/c0d0
lrwxrwxrwx 1 root root 18  4 avril 15:59 wwn-0x600508b100103836-part1
-> ../../cciss/c0d0p1
lrwxrwxrwx 1 root root  9  4 avril 15:59 wwn-0x600508b4000548d9 -> ../../sdb
lrwxrwxrwx 1 root root 10  4 avril 15:59 wwn-0x600508b4000548d9-part1
-> ../../sdc1
lrwxrwxrwx 1 root root 10  4 avril 15:59 wwn-0x600508b4000548d9-part2
-> ../../sdc2

/dev/disk/by-path:
total 0
lrwxrwxrwx 1 root root 16  4 avril 15:59 pci-0000:06:00.0 -> ../../cciss/c0d0
lrwxrwxrwx 1 root root 18  4 avril 15:59 pci-0000:06:00.0-part1 ->
../../cciss/c0d0p1
lrwxrwxrwx 1 root root  9  4 avril 15:59
pci-0000:0b:00.0-fc-0x50001fe15009ee68:0x0001000000000000 -> ../../sdc
lrwxrwxrwx 1 root root 10  4 avril 15:59
pci-0000:0b:00.0-fc-0x50001fe15009ee68:0x0001000000000000-part1 ->
../../sdc1
lrwxrwxrwx 1 root root 10  4 avril 15:59
pci-0000:0b:00.0-fc-0x50001fe15009ee68:0x0001000000000000-part2 ->
../../sdc2
lrwxrwxrwx 1 root root  9  4 avril 15:59
pci-0000:0b:00.0-fc-0x50001fe15009ee68:0x0002000000000000 -> ../../sdd
lrwxrwxrwx 1 root root 10  4 avril 15:59
pci-0000:0b:00.0-fc-0x50001fe15009ee68:0x0002000000000000-part1 ->
../../sdd1
lrwxrwxrwx 1 root root  9  4 avril 15:59
pci-0000:0b:00.0-fc-0x50001fe15009ee6c:0x0001000000000000 -> ../../sda
lrwxrwxrwx 1 root root 10  4 avril 15:59
pci-0000:0b:00.0-fc-0x50001fe15009ee6c:0x0001000000000000-part1 ->
../../sda1
lrwxrwxrwx 1 root root 10  4 avril 15:59
pci-0000:0b:00.0-fc-0x50001fe15009ee6c:0x0001000000000000-part2 ->
../../sda2
lrwxrwxrwx 1 root root  9  4 avril 15:59
pci-0000:0b:00.0-fc-0x50001fe15009ee6c:0x0002000000000000 -> ../../sdb
lrwxrwxrwx 1 root root 10  4 avril 15:59
pci-0000:0b:00.0-fc-0x50001fe15009ee6c:0x0002000000000000-part1 ->
../../sdb1

/dev/disk/by-uuid:
total 0
lrwxrwxrwx 1 root root 10  4 avril 15:59
6542dfdf-ef98-46e5-b473-142c216cc42d -> ../../dm-1
lrwxrwxrwx 1 root root 10  4 avril 15:59
92164462-d89f-4925-af44-0bb851c0b902 -> ../../dm-4
lrwxrwxrwx 1 root root 18  4 avril 15:59
b0f9230c-572a-4098-81dc-b952920dd9b0 -> ../../cciss/c0d0p1
lrwxrwxrwx 1 root root 10  4 avril 15:59
cc39cc25-7e51-4400-952d-f1e155d4f27b -> ../../dm-2


--------------------------------------------------


$ ll /dev/mapper/*
crw------- 1 root root  10, 58  4 avril 15:59 /dev/mapper/control
brw-rw---- 1 root disk 254,  0  4 avril 15:59 /dev/mapper/mpath0
lrwxrwxrwx 1 root root       7  4 avril 15:59 /dev/mapper/mpath0-part1
-> ../dm-1
lrwxrwxrwx 1 root root       7  4 avril 15:59 /dev/mapper/mpath0-part2
-> ../dm-2
brw-rw---- 1 root disk 254,  3  4 avril 15:59 /dev/mapper/mpath1
lrwxrwxrwx 1 root root       7  4 avril 15:59 /dev/mapper/mpath1-part1
-> ../dm-4

--------------------------------------------------

$ multipath -l
mpath1 (3600508b4000548d90000b00000a90000) dm-3 HP,HSV200
size=10G features='1 queue_if_no_path' hwhandler='0' wp=rw
|-+- policy='round-robin 0' prio=-1 status=active
| `- 0:0:2:2 sdb 8:16 active undef running
`-+- policy='round-robin 0' prio=-1 status=enabled
  `- 0:0:3:2 sdd 8:48 active undef running
mpath0 (3600508b4000548d90000b000002c0000) dm-0 HP,HSV200
size=8.0G features='1 queue_if_no_path' hwhandler='0' wp=rw
|-+- policy='round-robin 0' prio=-1 status=active
| `- 0:0:2:1 sda 8:0  active undef running
`-+- policy='round-robin 0' prio=-1 status=enabled
  `- 0:0:3:1 sdc 8:32 active undef running