Christian Balzer posted the following message to the list a couple of weeks ago.
I suspect you are suffering from the same bug. The solution would seem to be to
temporarily unmount and stop /dev/md10 and /dev/md11.
> From: [EMAIL PROTECTED]
> [mailto:[EMAIL PROTECTED]]On Behalf Of Christian Balzer
> Sent: 24 September 1999 17:13
> To: [EMAIL PROTECTED]
> Subject: Minor bug report for mkraid
>
>
> Hello,
>
> I'm using the latest version of mkraid and tried to create a RAID1
> device from hda1 and hdc1 (trying to set up a RAID1 boot device with
> the recently mentioned LILO disk geometry config options).
> Both partitions where set to type FD and the raidtab entry is fine, too.
> Alas when trying to do the actual "mkraid /dev/md5" it complained that
> /dev/hda1 was mounted, which it of course wasn't. After trying to force
> the issue and some scratching of my head I unmounted the partitions
> hda10 and hda11 (as well as hdc10 ;) and tried again. This time no
> complaints besides the fact that mkraid found an ext2fs filesystem
> on these partitions, that was to be expected and easily forced over.
>
> So it seems that mkraid should consider more than the first four
> characters of the actual partition name to distinguish partitions.
>
> Dewa,
>
> <CB>
> --
> // <CB> aka Christian Balzer, Tannenstr. 23c, D-64342 Seeheim, Germany
> \X/ [EMAIL PROTECTED] | Voice: +49 6257 83036, Fax/Data: +49 6257 83037
> SWB - The Software Brewery - | http://www.swb.de/ | Anime no Otaku
Hope this helps.
Cheers,
Bruno Prior [EMAIL PROTECTED]
> -----Original Message-----
> From: [EMAIL PROTECTED]
> [mailto:[EMAIL PROTECTED]]On Behalf Of Matt Shirel
> Sent: 11 October 1999 21:39
> To: [EMAIL PROTECTED]
> Cc: Norman Weathers
> Subject: mkraid: aborted -- /dev/md1: active
>
>
> A friend and I (both of us are fairly proficient w/ Linux but still
> very new to
> RAID) are trying to set up a fairly vanilla system. We are
> attempting to setup
> a full root-raid for a computational server.
> As Murphy's law predicts, server 1 went smooth as silk. Now that
> I've traveled
> almost 500 miles back home, server2 is giving the following error
> when we try to
> mkraid on the root partition (the last remaining partition standing between us
> and a suscessful build):
>
> --------
> DESTROYING the contents of /dev/md1 in 5 seconds, Ctrl-C if unsure!
> /dev/md1: active -- run raidstop
> mkraid: aborted, see the syslog and /proc/mdstat for potential clues.
> --------
> raidstop /dev/md1 returns no such device.
>
> I'm sure there is something simple we are missing. The system is a
> dual PII-450
> w/ a pair of IDE disks on seperate controllers.
> O/S: RH6.0 w/ -- 2.2.12 kernel and appropriate 2.2.11 patches and raidtools.
>
> Any advice is greatly appreciated. I've attached some of what I think are the
> pertenent files below... If anything else would be helpful... please ask..
>
> Thanks in advance...
>
> MATT
>
>
> Following is the contents of /proc/mdstat:
> Personalities : [raid0] [raid1] [raid5]
> read_ahead 1024 sectors
> md5 : active raid0 hdc5[0] hda5[1] 6144512 blocks 4k chunks
> md6 : active raid1 hdc6[0] hda6[1] 2560192 blocks [2/2] [UU]
> md7 : active raid1 hdc7[0] hda7[1] 2048128 blocks [2/2] [UU]
> md8 : active raid1 hdc8[0] hda8[1] 1350592 blocks [2/2] [UU]
> md9 : active raid1 hdc9[0] hda9[1] 511936 blocks [2/2] [UU]
> md10 : active raid1 hdc10[0] hda10[1] 102720 blocks [2/2] [UU]
> md11 : active raid1 hdc11[0] hda11[1] 102720 blocks [2/2] [UU]
> unused devices: <none>
>
> The contents of /etc/raidtab:
> # this is /scr
> raiddev /dev/md5
> raid-level 0
> nr-raid-disks 2
> persistent-superblock 1
> chunk-size 4
>
> device /dev/hdc5
> raid-disk 0
> device /dev/hda5
> raid-disk 1
>
> # This is /home
> raiddev /dev/md6
> raid-level 1
> nr-raid-disks 2
> nr-spare-disks 0
> persistent-superblock 1
> chunk-size 4
>
> device /dev/hdc6
> raid-disk 0
> device /dev/hda6
> failed-disk 1
>
> # This is /usr
> raiddev /dev/md7
> raid-level 1
> nr-raid-disks 2
> nr-spare-disks 0
> persistent-superblock 1
> chunk-size 4
>
> device /dev/hdc7
> raid-disk 0
> device /dev/hda7
> failed-disk 1
>
> # This is /tmp
> raiddev /dev/md10
> raid-level 1
> nr-raid-disks 2
> nr-spare-disks 0
> persistent-superblock 1
> chunk-size 4
>
> device /dev/hdc10
> raid-disk 0
> device /dev/hda10
> failed-disk 1
>
> # This is /var
> raiddev /dev/md11
> raid-level 1
> nr-raid-disks 2
> nr-spare-disks 0
> persistent-superblock 1
> chunk-size 4
>
> device /dev/hdc11
> raid-disk 0
> device /dev/hda11
> failed-disk 1
>
> # This is swap
> raiddev /dev/md9
> raid-level 1
> nr-raid-disks 2
> nr-spare-disks 0
> persistent-superblock 1
> chunk-size 4
>
> device /dev/hdc9
> raid-disk 0
> device /dev/hda9
> failed-disk 1
>
> # This is /
> raiddev /dev/md1
> raid-level 1
> nr-raid-disks 2
> nr-spare-disks 0
> persistent-superblock 1
> chunk-size 4
>
> device /dev/hdc1
> raid-disk 0
> device /dev/hda1
> failed-disk 1
>
> # This is /prog
> raiddev /dev/md8
> raid-level 1
> nr-raid-disks 2
> nr-spare-disks 0
> persistent-superblock 1
> chunk-size 4
>
> device /dev/hdc8
> raid-disk 0
> device /dev/hda8
> failed-disk 1
>
> And fdisk -l on both disks:
> Disk /dev/hda: 16 heads, 63 sectors, 19650 cylinders
> Units = cylinders of 1008 * 512 bytes
>
> Device Boot Start End Blocks Id System
> /dev/hda1 * 1 305 153688+ 83 Linux
> /dev/hda2 306 19650 9749880 5 Extended
> /dev/hda5 306 6401 3072352+ fd Unknown
> /dev/hda6 6402 11481 2560288+ fd Unknown
> /dev/hda7 11482 15545 2048224+ fd Unknown
> /dev/hda8 15546 18225 1350688+ fd Unknown
> /dev/hda9 18226 19241 512032+ fd Unknown
> /dev/hda10 19242 19445 102784+ fd Unknown
> /dev/hda11 19446 19649 102784+ fd Unknown
>
> Disk /dev/hdc: 16 heads, 63 sectors, 19650 cylinders
> Units = cylinders of 1008 * 512 bytes
>
> Device Boot Start End Blocks Id System
> /dev/hdc1 1 305 153688+ 83 Linux
> /dev/hdc2 306 19650 9749880 5 Extended
> /dev/hdc5 306 6401 3072352+ fd Unknown
> /dev/hdc6 6402 11481 2560288+ fd Unknown
> /dev/hdc7 11482 15545 2048224+ fd Unknown
> /dev/hdc8 15546 18225 1350688+ fd Unknown
> /dev/hdc9 18226 19241 512032+ fd Unknown
> /dev/hdc10 19242 19445 102784+ fd Unknown
> /dev/hdc11 19446 19649 102784+ fd Unknown
>
>
>
>
