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List Archive: gentoo-desktop
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To: gentoo-desktop@g.o
From: Paul Hartman <paul.hartman+gentoo@...>
Subject: Re: System problems - some progress
Date: Thu, 24 Mar 2011 18:20:32 -0500
On Thu, Mar 24, 2011 at 5:33 PM, Lindsay Haisley <fmouse-gentoo@...> wrote:
> Newer versions?  Kernel 2.6.36 has a config option for RAID autodetect.
> What are you referring to here, mdadm?

Even the newest kernel supports autodetect, but autodetect only works
with a specific kind of RAID superblock, I think version 0.90.
Different versions of mdadm create arrays with different versions of
superblock by default. Newer versions of superblocks cannot
(presently) be autodetected by the kernel, so anyone using a newer
type of superblock will have to do the "manual" config like this
anyway.

As for why it's not working in your case, I really don't know, but
hopefully you can at least get it working /somehow/ so that you can
use your system normally to get real work done, and can investigate
why auto-detect doesn't work the way you'd like it to with less
urgency. I've got an old Gentoo system that takes days to update, but
if the system is usable during that time it's not really a big deal to
me. It's the days-long updates when the system is in an unusable state
that are a real nightmare.

> @Paul, Ah, I see!
>
> The component drives in a RAID-1 array have the _same_ UUID, so I would
> assume that a line in /etc/mdadm.conf such as:
>
> ARRAY /dev/md0 UUID=d3176595:06cb3677:46406ca7:d12d146f

Right, exactly. Sorry I didn't make it clear before.

I consider it somewhat of a miracle that I ever got any of it working
on my computer in the first place, so I'm definitely speaking from an
"as far as I know" point of view here. It's something I set up when
building the computer and never had to think about it again.


Replies:
Re: System problems - some progress
-- Lindsay Haisley
Re: System problems - some progress
-- Lindsay Haisley
References:
System problems
-- Lindsay Haisley
Re: System problems
-- Roman Zilka
Re: System problems
-- Lindsay Haisley
Re: System problems
-- Roman Zilka
Re: System problems
-- Lindsay Haisley
Re: System problems
-- Roman Zilka
Re: System problems
-- Lindsay Haisley
Re: System problems
-- eamjr56
Re: System problems
-- Lindsay Haisley
Re: System problems
-- Dale
Re: System problems
-- Jorge Manuel B. S. Vicetto
Re: System problems - some progress
-- Lindsay Haisley
Re: System problems - some progress
-- Paul Hartman
Re: System problems - some progress
-- Lindsay Haisley
Re: System problems - some progress
-- Paul Hartman
Re: System problems - some progress
-- Lindsay Haisley
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Updated Jun 28, 2012

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