RE: multiple arrays and unmapped partitions

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> Sent: mardi 29 avril 2008 11:07
> 
> Hi Lucas,
> 
> kpartx workaround works for you or not ?

Hello Heinz, thanks for reading,

kpartx works as well as the "dmraid -an isw_di && dmraid -ay isw_di" kludge
I mentioned. Is there an easier way than manually adding a call to either
one of them in the initrd scripts (my root partition is not being mapped)

> In order to be able to test this further, I'd need the partition
> table sector(s) in addition to the "dmraid -rD" output you provided.

You can find them at http://elmo.xzibition.com/~lbc/parttables.tar.gz


Lucas

> Cheers,
> Heinz

> 
> On Sun, Apr 27, 2008 at 03:44:16PM +0200, Lucas B. Cohen wrote:
> > Hi,
> >
> > Have there been significant changes or advances regarding the issue of
> > partitions not being mapped when more than one array is present in a
> system,
> > since Liviu Balan's message on the subject [1] last year?
> >
> > With rc13 and rc14, depending on kernel version, either the first
> (2.6.18)
> > or second array (2.6.22 and up) get "missed" in my system (Intel
> Software
> > Raid on Intel P35 with ICH9R).
> >
> > Aside from Heinz's reply to [1] (suggesting a kpartx-based workaround),
> I've
> > noticed that deactivating the non-mapped array *only* before activating
> it
> > allows the missing nodes to be created in /dev/mapper. (Something like
> > dmraid -an isw_di && dmraid -ay isw_di)
> >
> > I imagine the "use kpartx instead of my own DOS metadata format handler"
> > item in rc14's TODO is relevant to this.
> >
> > In case it can be of use, the output of "dmraid -rD" for my system is
> > accessible at [2].
> >
> > Any insight is appreciated, as I'm having a hard time finding relevant
> > information on this problem elsewhere.
> >
> > Regards,
> >
> > Lucas Cohen
> >
> >
> > [1] http://www.redhat.com/archives/ataraid-list/2007-April/msg00009.html
> > [2] http://elmo.xzibition.com/~lbc/dmraid-metadata.tar.gz
> >
> > _______________________________________________
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> > Ataraid-list@xxxxxxxxxx
> > https://www.redhat.com/mailman/listinfo/ataraid-list
> 
> =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
> =-=-
> 
> Heinz Mauelshagen                                 Red Hat GmbH
> Consulting Development Engineer                   Am Sonnenhang 11
> Storage Development                               56242 Marienrachdorf
>                                                   Germany
> Mauelshagen@xxxxxxxxxx                            PHONE +49  171 7803392
>                                                   FAX   +49 2626 924446
> =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
> =-=-
> 
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