Problem Installing FC 6 Final on LVs over software raid

[Clyde E. Kunkel]

Michal Jaegermann wrote:
> On Wed, Nov 01, 2006 at 11:18:57PM -0500, Clyde E. Kunkel wrote:
>> Michal Jaegermann wrote:
>>> On Wed, Nov 01, 2006 at 12:00:35PM -0500, Clyde E. Kunkel wrote:
>>>> I cannot get FC6 (or FC6T4, or Rawhide) to recognize one of the software 
>>>> raid partitions as a PV for the LVs.
>>> Does this partition, or a physical disk below it, has, by any
>>> chance, a spurious RAID signature?
>>>
>>> See https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=176623#c8
>>>
>>> Maybe this is something else, but just an idea ...
>> Hmmmm....interesting idea and very plausible.  Will following the steps 
>> in 176623 cause the current data to be lost?
> 
> If this is a part of an active RAID then this should not be an
> issue.  If this signature is really spurious then it should not be
> there and I do not think that anything will be lost although I
> cannot tell for sure in all situations.  I am not that familiar with
> details of such setups.  In any case, if this is _really_ what you
> are looking at, then 'dmraid -E -r ...' makes a backup, in root
> $HOME AFAICT, of metadata removed.
> 
> Proceed with caution but I, for one, am quite interest in what
> you will find.
> 
>    Michal
> 

dmraid consistently returns "no RAID disks" no matter what 
parameter/path/device name I give it.  The arrays were originally 
created with mdadm.  Would

mdadm --zero-superblock /dev/md1

work?
-- 
Regards,

Old Fart
(my reply-to address is "munged" to defeat spambots)