i have setup raid0 and linear in my computer.
now i want to remove it and release my disk.
i use raidstop to stop all of md,and remove the file of /etc/raidtab
then i use fdisk to delete all of raid disk partitions.
at last , i reboot machine.
then i want to setup raid again, but it can't work now.
Following is my configure and the error output.
Disk /dev/hda: 255 heads, 63 sectors, 2434 cylinders
Units = cylinders of 16065 * 512 bytes
Device Boot Start End Blocks Id System
/dev/hda1 1 383 3076416 83 Linux
/dev/hda3 767 2434 13398210 5 Extended
/dev/hda4 448 511 514080 8e Linux LVM
/dev/hda5 767 783 136521 82 Linux swap
/dev/hda6 784 800 136521 83 Linux
/dev/hda7 801 864 514048+ fd Linux raid autodetect
/dev/hda8 865 928 514048+ fd Linux raid autodetect
Disk /dev/hdc: 255 heads, 63 sectors, 392 cylinders
Units = cylinders of 16065 * 512 bytes
Device Boot Start End Blocks Id System
/dev/hdc1 1 64 514048+ 83 Linux
/dev/hdc4 193 392 1606500 5 Extended
/dev/hdc5 193 256 514048+ fd Linux raid autodetect
/dev/hdc6 257 358 819283+ fd Linux raid autodetect
[root@snap /root]# cat /proc/mdstat
Personalities : [linear] [raid0] [raid1] [raid5] [multipath]
read_ahead not set
unused devices: <none>
[root@snap /root]# vi /etc/raidtab
raiddev /dev/md8
raid-level 0
nr-raid-disks 2
persistent-superblock 1
chunk-size 32
device /dev/hda7
raid-disk 0
device /dev/hdc5
raid-disk 1
raiddev /dev/md9
raid-level 0
nr-raid-disks 2
persistent-superblock 1
chunk-size 32
device /dev/hda8
raid-disk 0
device /dev/hdc6
raid-disk 1
[root@snap /root]# mkraid /dev/md8
handling MD device /dev/md8
analyzing super-block
/dev/hda7: device too small (0kB)
mkraid: aborted, see the syslog and /proc/mdstat for potential clues.
[root@snap /root]# mkraid /dev/md9
handling MD device /dev/md9
analyzing super-block
/dev/hda8: device too small (0kB)
mkraid: aborted, see the syslog and /proc/mdstat for potential clues.
Can you tell me where is wrong?
thanks a lot.
With our best regards, echo
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