Ubuntu
multipath-tools package

  1. Precise (12.04)
  2. Bug #1093918
  3. Comment #29

Comment 29 for bug 1093918

Revision history for this message
Ing. Josef Klotzner (josef-klotzner) wrote :

maybe this also is helpful:
made a diff of
grub-probe -vvd /dev/dm-6
versus
grub-probe -vvd /dev/mapper/via_jehhchjje7

at certain stage /dev/dm-6 just gets opened:

grub-core/kern/disk.c:338: Closing `hd3'.
grub-core/kern/disk.c:245: Opening `hd3,7'...
grub-core/partmap/msdos.c:166: partition 0: flag 0x80, type 0x7, start 0x3ec1, len 0x50014e6
grub-core/partmap/msdos.c:166: partition 1: flag 0x0, type 0x7, start 0x50053a7, len 0x61a7966
grub-core/partmap/msdos.c:166: partition 2: flag 0x0, type 0x5, start 0xb1acd4a, len 0xddc60ab6
grub-core/partmap/msdos.c:166: partition 3: flag 0x0, type 0x0, start 0x0, len 0x0
grub-core/partmap/msdos.c:166: partition 0: flag 0x0, type 0x7, start 0xb1acd4c, len 0x61a7927
grub-core/partmap/msdos.c:166: partition 1: flag 0x0, type 0x5, start 0x11354673, len 0xd346918d
grub-core/partmap/msdos.c:166: partition 2: flag 0x0, type 0x0, start 0xb1acd4a, len 0x0
grub-core/partmap/msdos.c:166: partition 3: flag 0x0, type 0x0, start 0xb1acd4a, len 0x0
grub-core/partmap/msdos.c:166: partition 0: flag 0x0, type 0x7, start 0x11356000, len 0xd3467800
grub-core/partmap/msdos.c:166: partition 1: flag 0x0, type 0x5, start 0xea9681bf, len 0x270d7b5
grub-core/partmap/msdos.c:166: partition 2: flag 0x0, type 0x0, start 0x11354673, len 0x0
grub-core/partmap/msdos.c:166: partition 3: flag 0x0, type 0x0, start 0x11354673, len 0x0
grub-core/partmap/msdos.c:166: partition 0: flag 0x0, type 0xfd, start 0xe47c08d5, len 0x270d776
grub-core/kern/fs.c:54: Detecting zfs...
grub-core/kern/emu/hostdisk.c:507: dm /dev/mapper/via_jehhchjje1 starts at 16065
grub-core/kern/emu/hostdisk.c:507: dm /dev/mapper/via_jehhchjje2 starts at 83907495
grub-core/kern/emu/hostdisk.c:507: dm /dev/mapper/via_jehhchjje3 starts at 186305866
grub-core/kern/emu/hostdisk.c:507: dm /dev/mapper/via_jehhchjje5 starts at 2
grub-core/kern/emu/hostdisk.c:507: dm /dev/mapper/via_jehhchjje6 starts at 102404790
grub-core/kern/emu/hostdisk.c:507: dm /dev/mapper/via_jehhchjje7 starts at 3647028107
grub-core/kern/emu/hostdisk.c:507: dm /dev/mapper/via_jehhchjje8 starts at 3687977792
grub-core/kern/emu/hostdisk.c:507: dm /dev/mapper/via_jehhchjje9 starts at 3716649654
grub-core/kern/emu/hostdisk.c:722: opening the device `/dev/mapper/via_jehhchjje' in open_device()

while /dev/mapper/via_jehhchjje7 gets in trouble trying to open extended partition:

grub-core/kern/disk.c:338: Closing `hd3'.
grub-core/kern/emu/hostdisk.c:1452: /dev/dm-6 is not DM-RAID
grub-core/kern/emu/hostdisk.c:1452: /dev/dm-6 is not DM-RAID
grub-core/kern/emu/hostdisk.c:1452: /dev/dm-6 is not DM-RAID
grub-core/kern/emu/hostdisk.c:507: dm /dev/mapper/via_jehhchjje7 starts at 3647028107
grub-core/kern/disk.c:245: Opening `/dev/mapper/via_jehhchjje3'...
grub-core/kern/emu/hostdisk.c:722: opening the device `/dev/mapper/via_jehhchjje3' in open_device()

if i do
sudo dmsetup rm via_hehhchjje3

i will destroy the raid or the involved partitions?