grub-install fails to detect lvm2 physical volumes on top of raid

[Luc Novalès]

Hi,
Debian 6.0.3_amd64 (squeeze net install disk) fails on Optiplex 980 with Raid0 and LVM.

grub-install fails on disk probe.

grub-install version is (GRUB) 1.98+20100804-14+squeeze1

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result of command "/usr/sbin/grub-probe --device-map=/boot/grub/device.map -v /boot/grub" :
/usr/sbin/grub-probe: info: the size of hd0 is 488281250.
/usr/sbin/grub-probe: info: the size of hd0 is 488281250.
/usr/sbin/grub-probe: info: the size of hd0 is 488281250.
/usr/sbin/grub-probe: info: the size of hd0 is 488281250.
/usr/sbin/grub-probe: info: the size of hd0 is 488281250.
/usr/sbin/grub-probe: info: the size of hd1 is 488281250.
/usr/sbin/grub-probe: info: the size of hd1 is 488281250.
/usr/sbin/grub-probe: info: the size of hd0 is 488281250.
/usr/sbin/grub-probe: info: the size of hd0 is 488281250.
/usr/sbin/grub-probe: info: the size of hd0 is 488281250.
/usr/sbin/grub-probe: info: the size of hd0 is 488281250.
/usr/sbin/grub-probe: info: the size of hd0 is 488281250.
/usr/sbin/grub-probe: info: the size of hd1 is 488281250.
/usr/sbin/grub-probe: info: the size of hd1 is 488281250.
/usr/sbin/grub-probe: info: changing current directory to /dev.
/usr/sbin/grub-probe: info: changing current directory to ghisvain.
/usr/sbin/grub-probe: info: changing current directory to mapper.
/usr/sbin/grub-probe: info: opening ghisvain-root.
/usr/sbin/grub-probe: error: no such disk.

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hardware disk configuration is :
       *-storage
             description: RAID bus controller
             product: 82801 SATA RAID Controller
             vendor: Intel Corporation
             physical id: 1f.2
             bus info: address@hidden:00:1f.2
             logical name: scsi0
             logical name: scsi1
             logical name: scsi2
             version: 05
             width: 32 bits
             clock: 66MHz
             capabilities: storage msi pm bus_master cap_list emulated
             configuration: driver=ahci latency=0
             resources: irq:32 ioport:fe00(size=8) ioport:fe10(size=4) ioport:fe20(size=8) ioport:fe30(size=4) ioport:fec0(size=32) memory:ff870000-ff8707ff
           *-disk:0
                description: ATA Disk
                product: SAMSUNG HD253GJ
                physical id: 0
                bus info: address@hidden:0.0.0
                logical name: /dev/sda
                version: 1AJ1
                serial: S26CJ9FZ129344
                size: 232GiB (250GB)
                capabilities: partitioned partitioned:dos
                configuration: ansiversion=5 signature=18000000
              *-volume:0 UNCLAIMED
                   description: Linux filesystem partition
                   physical id: 1
                   bus info: address@hidden:0.0.0,1
                   serial: 3O3kgT-MOx6-MeK6-JdqO-liYk-LnUE-VYfzN4
                   size: 109MiB
                   capacity: 109MiB
                   capabilities: primary lvm2
              *-volume:1 UNCLAIMED
                   description: Linux filesystem partition
                   physical id: 2
                   bus info: address@hidden:0.0.0,2
                   capacity: 1035MiB
                   capabilities: primary bootable
              *-volume:2 UNCLAIMED
                   description: Linux LVM Physical Volume partition
                   physical id: 3
                   bus info: address@hidden:0.0.0,3
                   capacity: 464GiB
                   capabilities: primary multi
           *-disk:1
                description: ATA Disk
                product: ST3250318AS
                vendor: Seagate
                physical id: 1
                bus info: address@hidden:0.0.0
                logical name: /dev/sdb
                version: CC45
                serial: 9VY604R0
                size: 232GiB (250GB)
                configuration: ansiversion=5

---

md devices are :
md
md126
md126p1
md126p2
md126p3
md127

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fstab is :
# /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
/dev/mapper/ghisvain-root /               ext4    errors=remount-ro 0       1
# /boot was on /dev/md126p2 during installation
UUID=4fdf4ce7-124c-400e-aca7-74dd87af4210 /boot           ext2    defaults        0       2
/dev/mapper/ghisvain-data /data           ext3    defaults        0       2
/dev/mapper/ghisvain-home /home           ext3    defaults        0       2
/dev/mapper/ghisvain-opt /opt            ext4    defaults        0       2
/dev/mapper/ghisvain-tmp /tmp            ext2    defaults        0       2
/dev/mapper/ghisvain-usr /usr            ext4    defaults        0       2
/dev/mapper/ghisvain-var /var            ext4    defaults        0       2
/dev/mapper/ghisvain-swap none            swap    sw              0       0
/dev/scd0       /media/cdrom0   udf,iso9660 user,noauto     0       0

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Pearhaps duplicate of  bug #34678 ? not sure.

Is there a workaround to force correct detection and finish install ?

Thanks for help.
Luc.

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