ubuntu@ubuntu:~$ sudo blkid
/dev/loop0: TYPE="squashfs"
/dev/sda1: UUID="a1e260b4-d526-72f2-32fc-7b37b7c8a00b" TYPE="linux_raid_member"
/dev/sdc1: UUID="a1e260b4-d526-72f2-32fc-7b37b7c8a00b" TYPE="linux_raid_member"
/dev/sde1: UUID="a1e260b4-d526-72f2-32fc-7b37b7c8a00b" TYPE="linux_raid_member"
/dev/sdf1: UUID="a1e260b4-d526-72f2-32fc-7b37b7c8a00b" TYPE="linux_raid_member"
/dev/sdd1: UUID="a1e260b4-d526-72f2-32fc-7b37b7c8a00b" TYPE="linux_raid_member"
/dev/sdb1: UUID="a1e260b4-d526-72f2-32fc-7b37b7c8a00b" TYPE="linux_raid_member"
/dev/sdg1: UUID="a1e260b4-d526-72f2-32fc-7b37b7c8a00b" TYPE="linux_raid_member"
/dev/sdh1: UUID="a1e260b4-d526-72f2-32fc-7b37b7c8a00b" TYPE="linux_raid_member"

ubuntu@ubuntu:~$ sudo mount /dev/md0 /mnt
mount: Gerätedatei /dev/md0 existiert nicht

ubuntu@ubuntu:~$ cat /etc/fstab
aufs / aufs rw 0 0
tmpfs /tmp tmpfs nosuid,nodev 0 0

ubuntu@ubuntu:~$ cat /etc/mdadm.conf
cat: /etc/mdadm.conf: No such file or directory

ubuntu@ubuntu:/$ sudo fdisk -l

Platte /dev/sda: 1000.2 GByte, 1000204886016 Byte
255 Köpfe, 63 Sektoren/Spur, 121601 Zylinder
Einheiten = Zylinder von 16065 × 512 = 8225280 Bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x000c1a5d

  Gerät  boot.     Anfang        Ende     Blöcke   Id  System
/dev/sda1               1      121602   976760832   fd  Linux raid autodetect

Platte /dev/sdc: 1000.2 GByte, 1000204886016 Byte
255 Köpfe, 63 Sektoren/Spur, 121601 Zylinder
Einheiten = Zylinder von 16065 × 512 = 8225280 Bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x000eca6a

  Gerät  boot.     Anfang        Ende     Blöcke   Id  System
/dev/sdc1               1      121602   976760832   fd  Linux raid autodetect

Platte /dev/sde: 1000.2 GByte, 1000204886016 Byte
255 Köpfe, 63 Sektoren/Spur, 121601 Zylinder
Einheiten = Zylinder von 16065 × 512 = 8225280 Bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x000372db

  Gerät  boot.     Anfang        Ende     Blöcke   Id  System
/dev/sde1               1      121602   976760832   fd  Linux raid autodetect

Platte /dev/sdf: 1000.2 GByte, 1000204886016 Byte
255 Köpfe, 63 Sektoren/Spur, 121601 Zylinder
Einheiten = Zylinder von 16065 × 512 = 8225280 Bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x00053a7a

  Gerät  boot.     Anfang        Ende     Blöcke   Id  System
/dev/sdf1               1      121602   976760832   fd  Linux raid autodetect

Platte /dev/sdd: 1000.2 GByte, 1000204886016 Byte
255 Köpfe, 63 Sektoren/Spur, 121601 Zylinder
Einheiten = Zylinder von 16065 × 512 = 8225280 Bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x0001ab1f

  Gerät  boot.     Anfang        Ende     Blöcke   Id  System
/dev/sdd1               1      121602   976760832   fd  Linux raid autodetect

Platte /dev/sdb: 1000.2 GByte, 1000204886016 Byte
255 Köpfe, 63 Sektoren/Spur, 121601 Zylinder
Einheiten = Zylinder von 16065 × 512 = 8225280 Bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x000d0338

  Gerät  boot.     Anfang        Ende     Blöcke   Id  System
/dev/sdb1               1      121602   976760832   fd  Linux raid autodetect

Platte /dev/sdg: 1000.2 GByte, 1000204886016 Byte
255 Köpfe, 63 Sektoren/Spur, 121601 Zylinder
Einheiten = Zylinder von 16065 × 512 = 8225280 Bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x00070312

  Gerät  boot.     Anfang        Ende     Blöcke   Id  System
/dev/sdg1               1      121602   976760832   fd  Linux raid autodetect

Platte /dev/sdh: 1000.2 GByte, 1000204886016 Byte
255 Köpfe, 63 Sektoren/Spur, 121601 Zylinder
Einheiten = Zylinder von 16065 × 512 = 8225280 Bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x0008ea6e

  Gerät  boot.     Anfang        Ende     Blöcke   Id  System
/dev/sdh1   *           1      121602   976760832   fd  Linux raid autodetect

ubuntu@ubuntu:/$ sudo mdadm --scann
sudo: mdadm: command not found

ubuntu@ubuntu:/$ sudo mdadm --scan
sudo: mdadm: command not found

ubuntu@ubuntu:/$ sudo apt-get install mdadm

ubuntu@ubuntu:/$ cat /etc/mdadm/mdadm.conf
# mdadm.conf
#
# Please refer to mdadm.conf(5) for information about this file.
#

# by default, scan all partitions (/proc/partitions) for MD superblocks.
# alternatively, specify devices to scan, using wildcards if desired.
DEVICE partitions

# auto-create devices with Debian standard permissions
CREATE owner=root group=disk mode=0660 auto=yes

# automatically tag new arrays as belonging to the local system
HOMEHOST <system>

# instruct the monitoring daemon where to send mail alerts
MAILADDR root

# definitions of existing MD arrays
ARRAY /dev/md0 level=raid5 num-devices=8
UUID=a1e260b4:d52672f2:32fc7b37:b7c8a00b

# This file was auto-generated on Sat, 15 Jan 2011 16:51:30 +0000
# by mkconf $Id$

ubuntu@ubuntu:/$ sudo mdadm --scan
mdadm: --scan does not set the mode, and so cannot be the first option.