Hello list!

I have try to switch from 2.6.13 to 14-rc1, but this kernel breaks my
device!

The problem:
# mdadm -A -R -f  /dev/md31 /dev/md1 /dev/md2 /dev/md3 /dev/md4
mdadm: no RAID superblock on /dev/md1
mdadm: /dev/md1 has no superblock - assembly aborted


md31 is a 8TB raid0 device.

the 2. dev:
# mdadm -E /dev/md2
/dev/md2:
          Magic : a92b4efc
        Version : 00.90.02
           UUID : 9a99d340:ab8f6bfc:bc8d42ed:79ce440e
  Creation Time : Sun Jul 17 19:50:11 2005
     Raid Level : raid0
    Device Size : 1953583232 (1863.08 GiB 2000.47 GB)
   Raid Devices : 4
  Total Devices : 4
Preferred Minor : 31

    Update Time : Sun Jul 17 19:50:11 2005
          State : active
 Active Devices : 4
Working Devices : 4
 Failed Devices : 0
  Spare Devices : 0
       Checksum : 1fd71b51 - correct
         Events : 0.2

     Chunk Size : 32K

      Number   Major   Minor   RaidDevice State
this     1       9        2        1      active sync   /dev/md2

   0     0       9        1        0      active sync   /dev/md1
   1     1       9        2        1      active sync   /dev/md2
   2     2       9        3        2      active sync   /dev/md3
   3     3       9        4        3      active sync   /dev/md4

the 3. dev:

# mdadm -E /dev/md3
/dev/md3:
          Magic : a92b4efc
        Version : 00.90.02
           UUID : 9a99d340:ab8f6bfc:bc8d42ed:79ce440e
  Creation Time : Sun Jul 17 19:50:11 2005
     Raid Level : raid0
    Device Size : 1953583232 (1863.08 GiB 2000.47 GB)
   Raid Devices : 4
  Total Devices : 4
Preferred Minor : 31

    Update Time : Sun Jul 17 19:50:11 2005
          State : active
 Active Devices : 4
Working Devices : 4
 Failed Devices : 0
  Spare Devices : 0
       Checksum : 1fd71b54 - correct
         Events : 0.2

     Chunk Size : 32K

      Number   Major   Minor   RaidDevice State
this     2       9        3        2      active sync   /dev/md3

   0     0       9        1        0      active sync   /dev/md1
   1     1       9        2        1      active sync   /dev/md2
   2     2       9        3        2      active sync   /dev/md3
   3     3       9        4        3      active sync   /dev/md4



the 4.dev:

# mdadm -E /dev/md4
/dev/md4:
          Magic : a92b4efc
        Version : 00.90.02
           UUID : 9a99d340:ab8f6bfc:bc8d42ed:79ce440e
  Creation Time : Sun Jul 17 19:50:11 2005
     Raid Level : raid0
    Device Size : 1953583232 (1863.08 GiB 2000.47 GB)
   Raid Devices : 4
  Total Devices : 4
Preferred Minor : 31

    Update Time : Sun Jul 17 19:50:11 2005
          State : active
 Active Devices : 4
Working Devices : 4
 Failed Devices : 0
  Spare Devices : 0
       Checksum : 1fd71b57 - correct
         Events : 0.2

     Chunk Size : 32K

      Number   Major   Minor   RaidDevice State
this     3       9        4        3      active sync   /dev/md4

   0     0       9        1        0      active sync   /dev/md1
   1     1       9        2        1      active sync   /dev/md2
   2     2       9        3        2      active sync   /dev/md3
   3     3       9        4        3      active sync   /dev/md4


but the md1 (the first dev) is this:
# mdadm -E /dev/md1
mdadm: No super block found on /dev/md1 (Expected magic a92b4efc, got
56dfa32e)


How can I fix this?
Can somebody help?

Thanks
Janos