A little help again. After being able to successfully mount in the
mips machine now that i am trying to mount in a x86 machine it is not
working.
# root@eeepc:~# mdadm -A --update=byteorder /dev/md1 /dev/sdc2
/dev/sdd2 /dev/sde2
mdadm: failed to add /dev/sdd2 to /dev/md1: Invalid argument
mdadm: failed to add /dev/sde2 to /dev/md1: Invalid argument
mdadm: failed to add /dev/sdc2 to /dev/md1: Invalid argument
mdadm: /dev/md1 assembled from 0 drives - not enough to start the array.
root@eeepc:~# mdadm -E /dev/sdc2
/dev/sdc2:
Magic : a92b4efc
Version : 0.90.00
UUID : 9ef886db:6d1ad183:a547ee43:0d984338
Creation Time : Thu Mar 29 11:50:27 2012
Raid Level : raid5
Used Dev Size : 1360279872 (1297.26 GiB 1392.93 GB)
Array Size : 2720559744 (2594.53 GiB 2785.85 GB)
Raid Devices : 3
Total Devices : 3
Preferred Minor : 1
Update Time : Thu Apr 26 20:01:51 2012
State : clean
Active Devices : 3
Working Devices : 3
Failed Devices : 0
Spare Devices : 0
Checksum : 5844783d - expected 5844773d
Events : 65223
Layout : left-symmetric
Chunk Size : 64K
Number Major Minor RaidDevice State
this 0 8 2 0 active sync /dev/sda2
0 0 8 2 0 active sync /dev/sda2
1 1 8 18 1 active sync /dev/sdb2
2 2 8 34 2 active sync /dev/sdc2
root@eeepc:~# mdadm -E /dev/sdd2
/dev/sdd2:
Magic : a92b4efc
Version : 0.90.00
UUID : 9ef886db:6d1ad183:a547ee43:0d984338
Creation Time : Thu Mar 29 11:50:27 2012
Raid Level : raid5
Used Dev Size : 1360279872 (1297.26 GiB 1392.93 GB)
Array Size : 2720559744 (2594.53 GiB 2785.85 GB)
Raid Devices : 3
Total Devices : 3
Preferred Minor : 1
Update Time : Thu Apr 26 20:01:51 2012
State : clean
Active Devices : 3
Working Devices : 3
Failed Devices : 0
Spare Devices : 0
Checksum : 5844784f - expected 5844774f
Events : 65223
Layout : left-symmetric
Chunk Size : 64K
Number Major Minor RaidDevice State
this 1 8 18 1 active sync /dev/sdb2
0 0 8 2 0 active sync /dev/sda2
1 1 8 18 1 active sync /dev/sdb2
2 2 8 34 2 active sync /dev/sdc2
root@eeepc:~# mdadm -E /dev/sde2
/dev/sde2:
Magic : a92b4efc
Version : 0.90.00
UUID : 9ef886db:6d1ad183:a547ee43:0d984338
Creation Time : Thu Mar 29 11:50:27 2012
Raid Level : raid5
Used Dev Size : 1360279872 (1297.26 GiB 1392.93 GB)
Array Size : 2720559744 (2594.53 GiB 2785.85 GB)
Raid Devices : 3
Total Devices : 3
Preferred Minor : 1
Update Time : Thu Apr 26 20:01:51 2012
State : clean
Active Devices : 3
Working Devices : 3
Failed Devices : 0
Spare Devices : 0
Checksum : 58447861 - expected 58447761
Events : 65223
Layout : left-symmetric
Chunk Size : 64K
Number Major Minor RaidDevice State
this 2 8 34 2 active sync /dev/sdc2
0 0 8 2 0 active sync /dev/sda2
1 1 8 18 1 active sync /dev/sdb2
2 2 8 34 2 active sync /dev/sdc2
Apparently i am getting checksum error.
root@eeepc:~# dmesg
...
[ 2102.169124] md: invalid superblock checksum on sde2
[ 2102.169133] md: sde2 does not have a valid v0.90 superblock, not importing!
[ 2102.169152] md: md_import_device returned -22
[ 2102.170490] md: invalid superblock checksum on sdc2
[ 2102.170499] md: sdc2 does not have a valid v0.90 superblock, not importing!
[ 2102.170513] md: md_import_device returned -22
[ 2133.642956] scsi_verify_blk_ioctl: 24 callbacks suppressed
[ 2133.642964] mdadm: sending ioctl 800c0910 to a partition!
[ 2133.642971] mdadm: sending ioctl 800c0910 to a partition!
[ 2133.642988] mdadm: sending ioctl 1261 to a partition!
[ 2133.642993] mdadm: sending ioctl 1261 to a partition!
[ 2133.643682] mdadm: sending ioctl 1261 to a partition!
[ 2133.643689] mdadm: sending ioctl 1261 to a partition!
[ 2133.648251] mdadm: sending ioctl 1261 to a partition!
[ 2133.648258] mdadm: sending ioctl 1261 to a partition!
[ 2133.648732] mdadm: sending ioctl 1261 to a partition!
[ 2133.648738] mdadm: sending ioctl 1261 to a partition!
[ 2260.925012] scsi_verify_blk_ioctl: 8 callbacks suppressed
...
root@eeepc:~# mdadm --version
mdadm - v3.2.3 - 23rd December 2011
any ideas how to fix this ?
[]'s
Salatiel
On Wed, Apr 4, 2012 at 08:47, NeilBrown <neilb@xxxxxxx> wrote:
> On Wed, 4 Apr 2012 08:15:57 -0300 Salatiel Filho <salatiel.filho@xxxxxxxxx>
> wrote:
>
>> I am having a big problem trying to assemble my raid.
>> I can assemble just fine in the old machine (LINUX ARM) where i built
>> the raid in the first place, but i am just unable to do in other
>> machine (Linux mips). I have no mdadm.conf in both machines.
>> I got the following error:
>>
>> # mdadm -A /dev/md0 /dev/sda2 /dev/sdb2 /dev/sdc2
>> mdadm: no recogniseable superblock on /dev/sda2
>> mdadm: /dev/sda2 has no superblock - assembly aborted
>>
>> # cat /var/log/messages | tail
>>
>> Apr 4 08:08:32 (none) kernel: [ 8577.010000] scsi_verify_blk_ioctl: 4
>> callbacks suppressed
>> Apr 4 08:08:32 (none) kernel: [ 8577.020000] mdadm: sending ioctl
>> 400c0910 to a partition!
>> Apr 4 08:08:32 (none) kernel: [ 8577.020000] mdadm: sending ioctl
>> 400c0910 to a partition!
>> Apr 4 08:08:32 (none) kernel: [ 8577.030000] mdadm: sending ioctl
>> 20001261 to a partition!
>> Apr 4 08:08:32 (none) kernel: [ 8577.040000] mdadm: sending ioctl
>> 20001261 to a partition!
>> Apr 4 08:08:32 (none) kernel: [ 8577.050000] mdadm: sending ioctl
>> 20001261 to a partition!
>> Apr 4 08:08:32 (none) kernel: [ 8577.050000] mdadm: sending ioctl
>> 20001261 to a partition!
>> Apr 4 08:08:32 (none) kernel: [ 8577.270000] mdadm: sending ioctl
>> 20001261 to a partition!
>> Apr 4 08:08:32 (none) kernel: [ 8577.280000] mdadm: sending ioctl
>> 20001261 to a partition!
>> Apr 4 08:08:33 (none) kernel: [ 8577.290000] mdadm: sending ioctl
>> 20001261 to a partition!
>> Apr 4 08:08:33 (none) kernel: [ 8577.290000] mdadm: sending ioctl
>> 20001261 to a partition!
>>
>> # fdisk -l /dev/sda
>>
>> Disk /dev/sda: 1500.3 GB, 1500301910016 bytes
>> 255 heads, 63 sectors/track, 182401 cylinders
>> Units = cylinders of 16065 * 512 = 8225280 bytes
>>
>> Device Boot Start End Blocks Id System
>> /dev/sda1 1 13055 104857600 83 Linux
>> /dev/sda2 13055 182402 1360279960 fd Linux raid autodetect
>>
>>
>> # fdisk -l /dev/sdb
>>
>> Disk /dev/sdb: 1500.3 GB, 1500301910016 bytes
>> 255 heads, 63 sectors/track, 182401 cylinders
>> Units = cylinders of 16065 * 512 = 8225280 bytes
>>
>> Device Boot Start End Blocks Id System
>> /dev/sdb1 1 13055 104857600 83 Linux
>> Partition 1 does not end on cylinder boundary
>> /dev/sdb2 13055 182402 1360279960 fd Linux raid autodetect
>> Partition 2 does not end on cylinder boundary
>>
>> # fdisk -l /dev/sdc
>>
>> Disk /dev/sdc: 1500.3 GB, 1500301910016 bytes
>> 255 heads, 63 sectors/track, 182401 cylinders
>> Units = cylinders of 16065 * 512 = 8225280 bytes
>>
>> Device Boot Start End Blocks Id System
>> /dev/sdc1 1 13055 104857600 83 Linux
>> /dev/sdc2 13055 182402 1360279960 fd Linux raid autodetect
>>
>>
>> # cat /proc/mdstat
>> Personalities : [raid1] [raid6] [raid5] [raid4]
>> unused devices: <none>
>>
>>
>>
>> # lsmod | grep -i 'md\|raid'
>> raid456 47584 0
>> async_raid6_recov 896 1 raid456
>> async_pq 1536 1 raid456
>> raid6_pq 74752 2 async_raid6_recov,async_pq
>> async_xor 976 2 raid456,async_pq
>> async_memcpy 560 1 raid456
>> async_tx 832 5
>> raid456,async_raid6_recov,async_pq,async_xor,async_memcpy
>> raid1 24304 0
>> md_mod 88816 2 raid456,raid1
>> md5 1424 0
>> crypto_hash 7888 3 dm_crypt,sha1_generic,md5
>>
>>
>>
>> # uname -a
>>
>> Linux router 3.2.9 #16 Sun Mar 25 16:31:49 BRT 2012 mips GNU/Linux
>>
>>
>> Any help ?
>
> ARM is little-endian
> MIPS ?? is that bigendian?
>
> What does
> mdadm -E --metadata=0.swap /dev/sda2
> report?
>
>
> If it is something useful, then try adding
> --update=byteorder
> to the "mdadm -A" command.
>
> NeilBrown
>
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