That's what a rescue disk is for.  Much simpler than breaking out and 
maintaining different partitions on your system.

--
Kyle Gonzales
Sent from my mobile

On Apr 2, 2011, at 3:37 PM, "William L. Thomson Jr." 
<[email protected]> wrote:

> On Sat, 2011-04-02 at 15:26 -0400, Kyle Gonzales wrote:
>> Interesting.  Default RHEL install since v4 puts all those on LVM2.
>> The advice given might be a little paranoid and the cause of needless
>> complexity.
> 
> Keep in mind RH goes out of their way to ensure things don't break.
> After all your paying for that with RHEL :)
> 
> Breakage occurs in the FOSS world all the time. While I haven't run into
> said problems with mounting lvm volumes, its not a chance I want to take
> either. Then again a simple tweak of a config file could cause your lvm
> partitions to go undetected just the same ;)
> 
> Like the filter directive, snippet from /etc/lvm/lvm.conf
> 
> "A filter that tells LVM2 to only use a restricted set of devices."
> 
> A couple examples that would not see other drives or lvm volumes on them
> 
> sata/scsi
> filter = [ "a|/dev/sd[abcd]|", "r/.*/" ]
> 
> HP raid arrays
> filter = [ "a|/dev/cciss/c0d0p|", "r/.*/" ]
> 
> -- 
> William L. Thomson Jr.
> Obsidian-Studios, Inc.
> http://www.obsidian-studios.com
> 
> 
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