Bug#598576: grub-probe reports "unknown LVM metadata header" for LV on RAID6

[Vladimir 'φ-coder/phcoder' Serbinenko]

tag 598576 fixed-upstream
thanks

This bug can be explained by the problem in raid6_recover fixed by Doug
Nazar's patch. As Martin doesn't anymore have the broken setup in
question I mark it as fixed-upstream
On 09/30/2010 10:26 AM, martin f krafft wrote:
> Package: grub-pc
> Version: 1.98+20100804-4
> Severity: important
>
> Let me know what other info I can provide:
>
> # grub-probe -t abstraction /dev/mapper/julia-root
> error: unknown LVM metadata header.
> grub-probe: error: cannot find a device for /dev/mapper/julia-root
> (is /dev mounted?).
>
> # lvdisplay /dev/mapper/julia-root
>   --- Logical volume ---
>   LV Name                /dev/julia/root
>   VG Name                julia
>   LV UUID                xQoCXr-YlLI-hrPP-a1kV-z1o5-ZR2h-y8h2Ar
>   LV Write Access        read/write
>   LV Status              available
>   # open                 1
>   LV Size                768.00 MiB
>   Current LE             192
>   Segments               1
>   Allocation             inherit
>   Read ahead sectors     auto
>   - currently set to     6144
>   Block device           253:0
>
> # vgdisplay julia
> File descriptor 4 (/dev/urandom) leaked on vgdisplay invocation. Parent PID 17559: bash
>   --- Volume group ---
>   VG Name               julia
>   System ID
>   Format                lvm2
>   Metadata Areas        1
>   Metadata Sequence No  112
>   VG Access             read/write
>   VG Status             resizable
>   MAX LV                0
>   Cur LV                6
>   Open LV               6
>   Max PV                0
>   Cur PV                1
>   Act PV                1
>   VG Size               1.82 TiB
>   PE Size               4.00 MiB
>   Total PE              476932
>   Alloc PE / Size       238466 / 931.51 GiB
>   Free  PE / Size       238466 / 931.51 GiB
>   VG UUID               kRIsN3-GYlK-sSVq-F08b-GfYe-GIXl-Vltxyw
>
> # pvdisplay /dev/md1
>   --- Physical volume ---
>   PV Name               /dev/md1
>   VG Name               julia
>   PV Size               1.82 TiB / not usable 4.00 MiB
>   Allocatable           yes
>   PE Size               4.00 MiB
>   Total PE              476932
>   Free PE               238466
>   Allocated PE          238466
>   PV UUID               BjIf5J-5oLQ-nrb6-zIM3-nyAr-P8lr-rov0nX
>
> # cat /proc/mdstat
> Personalities : [raid1] [raid6] [raid5] [raid4]
> md1 : active raid6 sdc1[0] sda1[5] sdb1[4] sdd1[1]
>       1953517568 blocks super 1.2 level 6, 512k chunk, algorithm 2 [4/4] [UUUU]
>       bitmap: 4/8 pages [16KB], 65536KB chunk
>
> unused devices: <none>
>
>   
>
>
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-- 
Regards
Vladimir 'φ-coder/phcoder' Serbinenko


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