On Thursday May 31, [EMAIL PROTECTED] wrote:
> I haven't found any answer that works in the HOWTO's, man pages or
> readme's.  I messed up somewhere, but can't find it.

Please send the output of 

 strace mkraid /dev/md0   (with the appropriate "force" option)
 cat /proc/mdstat
 tail -50 /var/log/kern.log  (or whereever kernel message go on your system).

NeilBrown


> Setup:
> 2.2.19 kernel w/ RAID support compiled in. (Slackware 7.1 to start)
> raid tools 0.90
> dual IBM 9.1 gig ultra-SCSI on a SuperMicro/Adapted 7895 on board controller.
> RAID 1 personality registered. 
> 
> /etc/raidtab:
> 
>  raiddev /dev/md0
>     raid-level             1
>     nr-raid-disks          2
>     persistent-superblock  1
>     chunk-size             32
> 
>     device                 /dev/sda3
>     raid-disk              0
>     device                 /dev/sdb3
>     raid-disk              1
> 
> -->eof
> raidstart "--all" or "/dev/md0" or "--configfile /etc/raidtab" results in:
> "/dev/md0: Invalid argument"
> 
> mkraid /dev/md0 (and all useful options, including "--force") results in:
> "disk 0: /dev/sda3, xxxkB, raid suberblock at XXX
> /dev/sda3 appears to be part of a RAID ... aborted ,see /proc/mdstat and syslog for 
>clues"
> 
> Well, /proc/mdstat shows raid1 personality registered and 3 inactive raids.
> syslog, even after upping logging level shows nothing at all.  I add that very early 
>on in this, on a 2.2.16 kernel, this raid was registered and active as a raid0.  
>After that, trying to change it ended up w/ this.  I was using the older raidtools, 
>too.  Now, even changing partition types, mke2fs as a normal linux partition, 
>re-partition... nothing changes.
> Has anybody seen this before?  
> 
> Thanks in advance.
> Greg Neumann
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