Hi, I have a RAID6, one member of which is a RAID0 (see attached --examine output). During boot the arrays don't get assembled properly. As soon as the RAID0 is assembled, it seems it gets added to a separate single-member array (as spare, btw...) and then when the RAID6 is supposed to assemble, it's missing that member (shouldn't it start anyway, btw?). I'm on gentoo, so I can have two separate mdadm.conf files - one for the initramfs, the other for real root. Both are listed below. Does anyone have any pointers on how to configure stuff for that array to assemble properly automagically? Without the mdadm.confs at all, if possible? /etc/mdadm-boot.conf: > ARRAY /dev/md124 UUID=47ffcb36:cf06cacc:462a36bb:f8f383a4 > ARRAY /dev/md127 UUID=e2d1cc5f:561339ef:c44c77eb:7ee19756 > ARRAY /dev/md/root metadata=1.2 > UUID=2c9eac29:89fb6c84:43dc5e7f:2677af98 name=media:root /etc/mdadm.conf: > ARRAY /dev/md/substore metadata=1.2 > UUID=e4cbf6b5:dda6f29c:76971fde:d826f1b3 name=sysresccd:substore > ARRAY /dev/md/live metadata=1.2 > UUID=b3432e2b:4c9979f3:b6e959e7:74cffa8a name=media:live > ARRAY /dev/md/store metadata=1.2 > UUID=ff9e032c:446ed0bd:fc9473f3:f8e090ed name=media:store Cheers, -- Michał (Saviq) Sawicz <michal@xxxxxxxxxx>
/dev/sda1:
Magic : a92b4efc
Version : 1.2
Feature Map : 0x0
Array UUID : ff9e032c:446ed0bd:fc9473f3:f8e090ed
Name : media:store (local to host media)
Creation Time : Tue Sep 13 21:36:43 2011
Raid Level : raid6
Raid Devices : 7
Avail Dev Size : 3907024896 (1863.01 GiB 2000.40 GB)
Array Size : 19535119360 (9315.07 GiB 10001.98 GB)
Used Dev Size : 3907023872 (1863.01 GiB 2000.40 GB)
Data Offset : 2048 sectors
Super Offset : 8 sectors
State : active
Device UUID : b75b6b4f:902d3e16:693b3725:ec442cbd
Update Time : Thu Oct 27 20:11:50 2011
Checksum : 94c2f320 - correct
Events : 225384
Layout : left-symmetric
Chunk Size : 512K
Device Role : Active device 3
Array State : AAAAAAA ('A' == active, '.' == missing)
======================
/dev/sdb1:
Magic : a92b4efc
Version : 1.2
Feature Map : 0x0
Array UUID : e4cbf6b5:dda6f29c:76971fde:d826f1b3
Name : sysresccd:substore
Creation Time : Sat Oct 22 10:28:47 2011
Raid Level : raid0
Raid Devices : 2
Avail Dev Size : 1953517954 (931.51 GiB 1000.20 GB)
Data Offset : 2048 sectors
Super Offset : 8 sectors
State : clean
Device UUID : 1ce1639d:e4151a21:654296eb:aee92a0f
Update Time : Sat Oct 22 10:28:47 2011
Checksum : 13d9ffc1 - correct
Events : 0
Chunk Size : 512K
Device Role : Active device 0
Array State : AA ('A' == active, '.' == missing)
======================
/dev/sdc1:
Magic : a92b4efc
Version : 1.2
Feature Map : 0x0
Array UUID : ff9e032c:446ed0bd:fc9473f3:f8e090ed
Name : media:store (local to host media)
Creation Time : Tue Sep 13 21:36:43 2011
Raid Level : raid6
Raid Devices : 7
Avail Dev Size : 3907024896 (1863.01 GiB 2000.40 GB)
Array Size : 19535119360 (9315.07 GiB 10001.98 GB)
Used Dev Size : 3907023872 (1863.01 GiB 2000.40 GB)
Data Offset : 2048 sectors
Super Offset : 8 sectors
State : active
Device UUID : 549aa21b:d4244631:e71ad4bd:cbb9b5ce
Update Time : Thu Oct 27 20:11:50 2011
Checksum : 26287d5e - correct
Events : 225384
Layout : left-symmetric
Chunk Size : 512K
Device Role : Active device 2
Array State : AAAAAAA ('A' == active, '.' == missing)
======================
/dev/sdd1:
Magic : a92b4efc
Version : 1.2
Feature Map : 0x0
Array UUID : e4cbf6b5:dda6f29c:76971fde:d826f1b3
Name : sysresccd:substore
Creation Time : Sat Oct 22 10:28:47 2011
Raid Level : raid0
Raid Devices : 2
Avail Dev Size : 1953517954 (931.51 GiB 1000.20 GB)
Data Offset : 2048 sectors
Super Offset : 8 sectors
State : clean
Device UUID : 791d0e71:b350cdef:f65ef3a5:a27574d8
Update Time : Sat Oct 22 10:28:47 2011
Checksum : 39de1f74 - correct
Events : 0
Chunk Size : 512K
Device Role : Active device 1
Array State : AA ('A' == active, '.' == missing)
======================
mdadm: No md superblock detected on /dev/sde1.
======================
/dev/sde2:
Magic : a92b4efc
Version : 0.90.00
UUID : 47ffcb36:cf06cacc:462a36bb:f8f383a4 (local to host media)
Creation Time : Wed Sep 21 08:26:16 2011
Raid Level : raid1
Used Dev Size : 129984 (126.96 MiB 133.10 MB)
Array Size : 129984 (126.96 MiB 133.10 MB)
Raid Devices : 2
Total Devices : 2
Preferred Minor : 124
Update Time : Sat Oct 22 11:00:08 2011
State : clean
Active Devices : 2
Working Devices : 2
Failed Devices : 0
Spare Devices : 0
Checksum : 9c6da6c6 - correct
Events : 18
Number Major Minor RaidDevice State
this 0 8 66 0 active sync /dev/sde2
0 0 8 66 0 active sync /dev/sde2
1 1 8 82 1 active sync /dev/sdf2
======================
/dev/sde3:
Magic : a92b4efc
Version : 1.2
Feature Map : 0x0
Array UUID : 2c9eac29:89fb6c84:43dc5e7f:2677af98
Name : media:root (local to host media)
Creation Time : Wed Sep 21 08:57:41 2011
Raid Level : raid10
Raid Devices : 2
Avail Dev Size : 62912512 (30.00 GiB 32.21 GB)
Array Size : 62910464 (30.00 GiB 32.21 GB)
Used Dev Size : 62910464 (30.00 GiB 32.21 GB)
Data Offset : 2048 sectors
Super Offset : 8 sectors
State : clean
Device UUID : e7d30ef3:5c1da519:5dc2a827:bff5a19b
Update Time : Thu Oct 27 20:19:29 2011
Checksum : bc0e1c55 - correct
Events : 45
Layout : far=2
Chunk Size : 512K
Device Role : Active device 0
Array State : AA ('A' == active, '.' == missing)
======================
mdadm: No md superblock detected on /dev/sde4.
======================
/dev/sde5:
Magic : a92b4efc
Version : 1.2
Feature Map : 0x0
Array UUID : b3432e2b:4c9979f3:b6e959e7:74cffa8a
Name : media:live (local to host media)
Creation Time : Tue Sep 20 21:01:01 2011
Raid Level : raid0
Raid Devices : 2
Avail Dev Size : 1888247183 (900.39 GiB 966.78 GB)
Data Offset : 2048 sectors
Super Offset : 8 sectors
State : clean
Device UUID : 7adc62d7:a7914213:31cfa6b2:8b517533
Update Time : Tue Sep 20 21:01:01 2011
Checksum : eb39aa40 - correct
Events : 0
Chunk Size : 512K
Device Role : Active device 0
Array State : AA ('A' == active, '.' == missing)
======================
mdadm: No md superblock detected on /dev/sdf1.
======================
/dev/sdf2:
Magic : a92b4efc
Version : 0.90.00
UUID : 47ffcb36:cf06cacc:462a36bb:f8f383a4 (local to host media)
Creation Time : Wed Sep 21 08:26:16 2011
Raid Level : raid1
Used Dev Size : 129984 (126.96 MiB 133.10 MB)
Array Size : 129984 (126.96 MiB 133.10 MB)
Raid Devices : 2
Total Devices : 2
Preferred Minor : 124
Update Time : Sat Oct 22 11:00:08 2011
State : clean
Active Devices : 2
Working Devices : 2
Failed Devices : 0
Spare Devices : 0
Checksum : 9c6da6d8 - correct
Events : 18
Number Major Minor RaidDevice State
this 1 8 82 1 active sync /dev/sdf2
0 0 8 66 0 active sync /dev/sde2
1 1 8 82 1 active sync /dev/sdf2
======================
/dev/sdf3:
Magic : a92b4efc
Version : 1.2
Feature Map : 0x0
Array UUID : 2c9eac29:89fb6c84:43dc5e7f:2677af98
Name : media:root (local to host media)
Creation Time : Wed Sep 21 08:57:41 2011
Raid Level : raid10
Raid Devices : 2
Avail Dev Size : 62912512 (30.00 GiB 32.21 GB)
Array Size : 62910464 (30.00 GiB 32.21 GB)
Used Dev Size : 62910464 (30.00 GiB 32.21 GB)
Data Offset : 2048 sectors
Super Offset : 8 sectors
State : clean
Device UUID : 1d2726d5:4a0c3c5b:597b3d53:6741c02f
Update Time : Thu Oct 27 20:19:29 2011
Checksum : 9f6f631e - correct
Events : 45
Layout : far=2
Chunk Size : 512K
Device Role : Active device 1
Array State : AA ('A' == active, '.' == missing)
======================
mdadm: No md superblock detected on /dev/sdf4.
======================
/dev/sdf5:
Magic : a92b4efc
Version : 1.2
Feature Map : 0x0
Array UUID : b3432e2b:4c9979f3:b6e959e7:74cffa8a
Name : media:live (local to host media)
Creation Time : Tue Sep 20 21:01:01 2011
Raid Level : raid0
Raid Devices : 2
Avail Dev Size : 1888247183 (900.39 GiB 966.78 GB)
Data Offset : 2048 sectors
Super Offset : 8 sectors
State : clean
Device UUID : 668bd8dc:5d0daf33:e804c7ed:ef63150f
Update Time : Tue Sep 20 21:01:01 2011
Checksum : 27dc1cff - correct
Events : 0
Chunk Size : 512K
Device Role : Active device 1
Array State : AA ('A' == active, '.' == missing)
======================
/dev/sdg1:
Magic : a92b4efc
Version : 1.2
Feature Map : 0x0
Array UUID : ff9e032c:446ed0bd:fc9473f3:f8e090ed
Name : media:store (local to host media)
Creation Time : Tue Sep 13 21:36:43 2011
Raid Level : raid6
Raid Devices : 7
Avail Dev Size : 3907024896 (1863.01 GiB 2000.40 GB)
Array Size : 19535119360 (9315.07 GiB 10001.98 GB)
Used Dev Size : 3907023872 (1863.01 GiB 2000.40 GB)
Data Offset : 2048 sectors
Super Offset : 8 sectors
State : active
Device UUID : e776f353:df8851af:409b08a6:584ce92d
Update Time : Thu Oct 27 20:11:50 2011
Checksum : 23ecd0e5 - correct
Events : 225384
Layout : left-symmetric
Chunk Size : 512K
Device Role : Active device 4
Array State : AAAAAAA ('A' == active, '.' == missing)
======================
/dev/sdh1:
Magic : a92b4efc
Version : 1.2
Feature Map : 0x0
Array UUID : ff9e032c:446ed0bd:fc9473f3:f8e090ed
Name : media:store (local to host media)
Creation Time : Tue Sep 13 21:36:43 2011
Raid Level : raid6
Raid Devices : 7
Avail Dev Size : 3907024896 (1863.01 GiB 2000.40 GB)
Array Size : 19535119360 (9315.07 GiB 10001.98 GB)
Used Dev Size : 3907023872 (1863.01 GiB 2000.40 GB)
Data Offset : 2048 sectors
Super Offset : 8 sectors
State : active
Device UUID : 4bcee8e2:709419b6:fbeb3a8e:5c9bb68a
Update Time : Thu Oct 27 20:11:50 2011
Checksum : fea9d394 - correct
Events : 225384
Layout : left-symmetric
Chunk Size : 512K
Device Role : Active device 0
Array State : AAAAAAA ('A' == active, '.' == missing)
======================
/dev/sdi1:
Magic : a92b4efc
Version : 1.2
Feature Map : 0x0
Array UUID : ff9e032c:446ed0bd:fc9473f3:f8e090ed
Name : media:store (local to host media)
Creation Time : Tue Sep 13 21:36:43 2011
Raid Level : raid6
Raid Devices : 7
Avail Dev Size : 3907024896 (1863.01 GiB 2000.40 GB)
Array Size : 19535119360 (9315.07 GiB 10001.98 GB)
Used Dev Size : 3907023872 (1863.01 GiB 2000.40 GB)
Data Offset : 2048 sectors
Super Offset : 8 sectors
State : active
Device UUID : ade80b47:8a54eedd:55363c8a:7c77b48c
Update Time : Thu Oct 27 20:11:50 2011
Checksum : 88a0d490 - correct
Events : 225384
Layout : left-symmetric
Chunk Size : 512K
Device Role : Active device 6
Array State : AAAAAAA ('A' == active, '.' == missing)
======================
/dev/sdj1:
Magic : a92b4efc
Version : 1.2
Feature Map : 0x0
Array UUID : ff9e032c:446ed0bd:fc9473f3:f8e090ed
Name : media:store (local to host media)
Creation Time : Tue Sep 13 21:36:43 2011
Raid Level : raid6
Raid Devices : 7
Avail Dev Size : 3907024896 (1863.01 GiB 2000.40 GB)
Array Size : 19535119360 (9315.07 GiB 10001.98 GB)
Used Dev Size : 3907023872 (1863.01 GiB 2000.40 GB)
Data Offset : 2048 sectors
Super Offset : 8 sectors
State : active
Device UUID : 1ff1e946:e785056a:9c97ed8a:3444dfbb
Update Time : Thu Oct 27 20:11:50 2011
Checksum : 44723c59 - correct
Events : 225384
Layout : left-symmetric
Chunk Size : 512K
Device Role : Active device 1
Array State : AAAAAAA ('A' == active, '.' == missing)
======================
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