Can't mount RAID5...

[jdlvfr]

Hi all,

just migrating from Mandriva to Debian and I can't mount my raid array no more.
When I boot on Mandriva the raid is ok. I can mount it. Debian just doesn't want!
I've run Fsck from mandriva, no problem found.

Surely i've missed something but I can't figure what...

Any clue???

joel

Dmesg gives:

raid5: automatically using best checksumming function: generic_sse
generic_sse: 5464.000 MB/sec
raid5: using function: generic_sse (5464.000 MB/sec)
md: md driver 0.90.3 MAX_MD_DEVS=256, MD_SB_DISKS=27
md: bitmap version 4.39
raid6: int64x1 1644 MB/s
raid6: int64x2 2125 MB/s
raid6: int64x4 2078 MB/s
raid6: int64x8 1449 MB/s
raid6: sse2x1 632 MB/s
raid6: sse2x2 933 MB/s
raid6: sse2x4 1371 MB/s
raid6: using algorithm sse2x4 (1371 MB/s)
md: raid6 personality registered for level 6
md: raid5 personality registered for level 5
md: raid4 personality registered for level 4
md: md0 stopped.
md: bind<hdf>
md: bind<hdg>
md: bind<hdh>
md: bind<hde>
raid5: device hde operational as raid disk 0
raid5: device hdh operational as raid disk 3
raid5: device hdg operational as raid disk 2
raid5: device hdf operational as raid disk 1
raid5: allocated 4276kB for md0
raid5: raid level 5 set md0 active with 4 out of 4 devices, algorithm 2
RAID5 conf printout:
--- rd:4 wd:4 fd:0
disk 0, o:1, dev:hde
disk 1, o:1, dev:hdf
disk 2, o:1, dev:hdg
disk 3, o:1, dev:hdh


# cat /proc/mdstat
Personalities : [raid6] [raid5] [raid4]
md0 : active raid5 hde[0] hdh[3] hdg[2] hdf[1]
1172133888 blocks level 5, 64k chunk, algorithm 2 [4/4] [UUUU]

unused devices: <none>


And near the end :

EXT3-fs error (device md0): ext3_check_descriptors: Block bitmap for group 880 not in group (block 67108864)!
EXT3-fs: group descriptors corrupted!


If I try to mount :

#mount /dev/md0 /mnt/raid
mount: wrong fs type, bad option, bad superblock on /dev/md0,
missing codepage or other error
In some cases useful info is found in syslog - try
dmesg | tail or so

[falko]

Is it software or hardware RAID? What kind of hard disks do you use (SATA, IDE,...)? Which Debian kernel?

[jdlvfr]

Kernel is 2.6.17-2-amd6, RAID is software with 4 IDE disk and a PCI IDE controller:

02:0a.0 Mass storage controller: Promise Technology, Inc. 20269 (rev 02) (prog-if 85)
Subsystem: Promise Technology, Inc. Ultra133TX2

Mandriva's kernel is 2.6.17 based.

joel

[falko]

What file system do you use on the disks? Is it supported by your Debian kernel?

[jdlvfr]

File system is ext3, and there's no problem with the two other non raid ext3fs hard disks.

joel