Re: mdadm: SET_ARRAY_INFO failed for /dev/md0: File exists

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On Sunday May 2, me@heyjay.com wrote:
> Hi,
> 
> I did a fresh install of Sarge, updated the kernel to 2.4.26.  then did:
> 
> platinum:~#  mdadm -C /dev/md0 --level raid1 --raid-disks 2 missing
> /dev/hdc1
> mdadm: /dev/hdc1 appears to contain an ext2fs file system
>     size=117218240K  mtime=Wed Dec 31 18:00:00 1969
> Continue creating array? y
> mdadm: SET_ARRAY_INFO failed for /dev/md0: File exists
> 
> Anyone know why am I getting this error?  This is the first time (for this
> install) that I'm trying to build a raid.  Where does this file exist?  On
> my system disk or on the second disk I'm trying to build the raid
> on?

What does
  cat /proc/mdstat
show?  I suspect /dev/md0 has already been assembled somehow.

NeilBrown

> 
> Thanks
> Jay
> 
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