Kernel error on CD-RW/DVD ROM

[christian.peper at kpn.com]

Thanks everyone for their input.
I'm sure I have LVM configured to ignore CD/DVD media but I'll check. Some servers have also have an older cfg. I don't think I changed any BIOS settings that may have cause the msgs to appear, but I'm not the only admin so you never know. And I can verify the fstab settings concerning CDs.

Thansk again,
Chris.

> -----Original Message-----
> From: linux-poweredge-bounces at dell.com 
> [mailto:linux-poweredge-bounces at dell.com] On Behalf Of Alexander Dupuy
> Sent: Wednesday, April 15, 2009 8:25 PM
> To: linux-poweredge at dell.com; clarkp at osti.gov
> Subject: RE: Kernel error on CD-RW/DVD ROM
> 
> Patti Clark wrote:
> > the last message was generated right after I'd added space 
> to an LVM partition.
> 
> This is a telling point.  I have a small snippet of shell 
> code that will update /etc/lvm/lvm.conf to exclude 
> CD/DVD-ROM/RW devices - I suspect that if you try running 
> this on your machine (make a backup copy of /etc/lvm/lvm.conf 
> first!), it will prevent these messages, at least if they are 
> caused by LVM attempting to identify volumes.
> 
> # update lvm configuration to not bother trying to probe 
> cdroms/cdwriters FILTER= for DEVICE in /dev/cd* /dev/dvd* do
>   case $DEVICE in *'*') : continue ;; esac
>   FILTER="$FILTER \"r|$DEVICE|\","
>   LINK=`readlink $DEVICE`
>   case $LINK in
>     '') : ;;
>     /*) FILTER="$FILTER \"r|/$LINK|\"," ;;
>     *) FILTER="$FILTER \"r|/dev/$LINK|\","
>   esac
> done
> if [ -n "$FILTER" ]; then
>   ed -s /etc/lvm/lvm.conf <<-EOF
> /^ *filter =/s@=.*@= [$FILTER "a/.*/" ]@ wq EOF
>   rm -f /etc/lvm/.cache /etc/lvm/cache/.cache fi
> 
> You could also just edit /etc/lvm/lvm.conf directly and set 
> the filter patter manually - just remember to delete the cache file.
> 
> @alex
> 
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