bart ~ # mdadm -C --assume-clean /dev/md1 -l 5 -n 5 /dev/loop0 /dev/loop1 /dev/loop2 /dev/loop3 /dev/loop4
mdadm: /dev/loop0 appears to contain an ext2fs file system
    size=40704K  mtime=Sun May 27 01:07:19 2007
mdadm: /dev/loop0 appears to be part of a raid array:
    level=raid5 devices=5 ctime=Sun May 27 00:56:18 2007
mdadm: /dev/loop1 appears to be part of a raid array:
    level=raid5 devices=5 ctime=Sun May 27 00:56:18 2007
mdadm: /dev/loop2 appears to be part of a raid array:
    level=raid5 devices=5 ctime=Sun May 27 00:56:18 2007
mdadm: /dev/loop3 appears to be part of a raid array:
    level=raid5 devices=5 ctime=Sun May 27 00:56:18 2007
mdadm: /dev/loop4 appears to contain an ext2fs file system
    size=40896K  mtime=Sun May 27 01:07:19 2007
mdadm: /dev/loop4 appears to be part of a raid array:
    level=raid5 devices=5 ctime=Sun May 27 00:56:18 2007
Continue creating array? y
mdadm: array /dev/md1 started.
bart ~ # file -s /dev/md1
/dev/md1: Linux rev 1.0 ext3 filesystem data
bart ~ # mount /dev/md1 /mnt/mnt1
bart ~ # cat /mnt/mnt1/
importantfile  lost+found/    
bart ~ # cat /mnt/mnt1/importantfile 
importantdata
bart ~ #