mini:~# mdadm -E /dev/sda1 /dev/sda2 /dev/sda5
/dev/sda1:
          Magic : a92b4efc
        Version : 00.90.00
           UUID : adbe578f:b86ab25a:09937ff0:e2de4343
  Creation Time : Thu Jun 19 16:33:50 2008
     Raid Level : raid1
    Device Size : 1003904 (980.54 MiB 1028.00 MB)
     Array Size : 1003904 (980.54 MiB 1028.00 MB)
   Raid Devices : 2
  Total Devices : 1
Preferred Minor : 0
    Update Time : Thu Nov  1 02:29:53 2007
          State : clean
 Active Devices : 1
Working Devices : 1
 Failed Devices : 0
  Spare Devices : 0
       Checksum : 8b5841e7 - correct
         Events : 0.1577
      Number   Major   Minor   RaidDevice State
this     1       8        1        1      active sync   /dev/sda1
   0     0       0        0        0      removed
   1     1       8        1        1      active sync   /dev/sda1
/dev/sda2:
          Magic : a92b4efc
        Version : 00.90.00
           UUID : db218435:100e25e7:d2ba170f:d67ec206
  Creation Time : Thu Jun 19 16:33:51 2008
     Raid Level : raid1
    Device Size : 5004160 (4.77 GiB 5.12 GB)
     Array Size : 5004160 (4.77 GiB 5.12 GB)
   Raid Devices : 2
  Total Devices : 1
Preferred Minor : 1
    Update Time : Thu Nov  1 02:32:07 2007
          State : clean
 Active Devices : 1
Working Devices : 1
 Failed Devices : 0
  Spare Devices : 0
       Checksum : cd639a92 - correct
         Events : 0.21039
      Number   Major   Minor   RaidDevice State
this     1       8        2        1      active sync   /dev/sda2
   0     0       0        0        0      removed
   1     1       8        2        1      active sync   /dev/sda2
/dev/sda5:
          Magic : a92b4efc
        Version : 00.90.00
           UUID : 5ff62718:4b361669:2597d6c1:28cfaec3
  Creation Time : Thu Nov  1 00:42:25 2007
     Raid Level : raid1
    Device Size : 1003904 (980.54 MiB 1028.00 MB)
     Array Size : 1003904 (980.54 MiB 1028.00 MB)
   Raid Devices : 2
  Total Devices : 2
Preferred Minor : 10
    Update Time : Thu Nov  1 00:46:14 2007
          State : clean
 Active Devices : 2
Working Devices : 2
 Failed Devices : 0
  Spare Devices : 0
       Checksum : 311fa9fd - correct
         Events : 0.5
      Number   Major   Minor   RaidDevice State
this     0       8       21        0      active sync   /dev/sdb5
   0     0       8       21        0      active sync   /dev/sdb5
   1     1       8        5        1      active sync   /dev/sda5
mini:~#
sda1, sda2 は sdb が removed だが、mini:~# mount /dev/md0 /boot mini:~# df Filesystem 1K-blocks Used Available Use% Mounted on /dev/md1 4993920 214340 4779580 5% / tmpfs 63116 0 63116 0% /lib/init/rw tmpfs 63116 0 63116 0% /dev/shm /dev/root.old 15351 13874 1477 91% /initrd /dev/md0 988064 120780 867284 13% /boot mini:~#できるやん。
Debian GNU/Linux 4.0 mini ttyS0 mini login: root Password: Last login: Thu Nov 1 02:07:33 2007 on ttyS0 Linux mini 2.6.16.16-arm1 #316 Tue Jul 22 16:22:33 JST 2008 armv5tejl The programs included with the Debian GNU/Linux system are free software; the exact distribution terms for each program are described in the individual files in /usr/share/doc/*/copyright. Debian GNU/Linux comes with ABSOLUTELY NO WARRANTY, to the extent permitted by applicable law. mini:~# df Filesystem 1K-blocks Used Available Use% Mounted on /dev/md1 4993920 213436 4780484 5% / tmpfs 63116 0 63116 0% /lib/init/rw tmpfs 63116 0 63116 0% /dev/shm /dev/root.old 15351 13874 1477 91% /initrd mini:~# mount /dev/md0 /boot mini:~# df Filesystem 1K-blocks Used Available Use% Mounted on /dev/md1 4993920 213460 4780460 5% / tmpfs 63116 0 63116 0% /lib/init/rw tmpfs 63116 0 63116 0% /dev/shm /dev/root.old 15351 13874 1477 91% /initrd /dev/md0 988064 120780 867284 13% /boot mini:~#ブート時にはマウントできていないけど、 ブート後に手でマウントは可能。
ブート時に
mdadm: cannot open device /dev/disk1_1: Device or resource busy mdadm: /dev/disk1_1 has wrong uuid.と出ているのが、それか。
保留
     
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