Re: In Trouble--Please Help! (was Re: Can't add disk to failed raid array)

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On Sunday July 23, pwaldo@xxxxxxxxxxxxx wrote:
> Here is the dmesg output.  No log files are created with the FC5 rescue disk.  
> Thanks!
> 
> 
> 
> On Sunday 23 July 2006 07:59, Neil Brown wrote:
> > On Sunday July 23, pwaldo@xxxxxxxxxxxxx wrote:
> > > At this point, I'd just be happy to be able to get the degraded array
> > > back up and running.  Is there any way to do that?  Thanks!
> >
> >  mdadm --assemble --force /dev/md1 /dev/hd[aceg]2 /dev/sd[ab]2
> >
....
> raid6: cannot start dirty degraded array for md1

Just checked, and this is fixed in the latest mdadm.  If you use 2.5.2
this --assemble --force will work.

Alternately booting with
  md-mod.start_dirty_degraded=1

or running
  echo 1 >  /sys/module/md_mod/parameters/start_dirty_degraded 

before the --assemble

should work.

NeilBrown
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