From: Moshe Yudkowsky <moshe@pobox.com>
To: Peter Rabbitson <rabbit+list@rabbit.us>
Cc: linux-raid@vger.kernel.org
Subject: Re: In this partition scheme, grub does not find md information?
Date: Tue, 29 Jan 2008 09:57:48 -0600 [thread overview]
Message-ID: <479F4CFC.5060305@pobox.com> (raw)
In-Reply-To: <479F3C74.1050605@rabbit.us>
Peter Rabbitson wrote:
> [*] The layout is the same but the functionality is different. If you
> have 1+0 on 4 drives, you can survive a loss of 2 drives as long as they
> are part of different mirrors. mdadm -C -l 10 -n 4 -o n2 <drives>
> however will _NOT_ survive a loss of 2 drives.
In my 4 drive system, I'm clearly not getting 1+0's ability to use grub
out of the RAID10. I expect it's because I used 1.2 superblocks (why
not use the latest, I said, foolishly...) and therefore the RAID10 --
with even number of drives -- can't be read by grub. If you'd patch that
information into the man pages that'd be very useful indeed.
Thanks for your attention to this!
--
Moshe Yudkowsky * moshe@pobox.com * www.pobox.com/~moshe
"no user serviceable parts below this line"
-- From a Perl program by mengwong@pobox.com
next prev parent reply other threads:[~2008-01-29 15:57 UTC|newest]
Thread overview: 60+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-01-29 4:44 In this partition scheme, grub does not find md information? Moshe Yudkowsky
2008-01-29 5:08 ` Neil Brown
2008-01-29 11:02 ` Moshe Yudkowsky
2008-01-29 11:14 ` Peter Rabbitson
2008-01-29 11:29 ` Moshe Yudkowsky
2008-01-29 14:09 ` Michael Tokarev
2008-01-29 14:07 ` Michael Tokarev
2008-01-29 14:47 ` Peter Rabbitson
2008-01-29 15:13 ` Michael Tokarev
2008-01-29 15:41 ` Peter Rabbitson
2008-01-29 16:51 ` Michael Tokarev
2008-01-29 17:51 ` Keld Jørn Simonsen
2008-01-29 16:16 ` Moshe Yudkowsky
2008-01-29 16:34 ` Peter Rabbitson
2008-01-29 19:34 ` Moshe Yudkowsky
2008-01-29 20:21 ` Keld Jørn Simonsen
2008-01-29 22:14 ` Moshe Yudkowsky
2008-01-29 23:45 ` Bill Davidsen
2008-01-30 0:13 ` Moshe Yudkowsky
2008-01-30 22:36 ` Bill Davidsen
2008-01-30 0:17 ` Keld Jørn Simonsen
2008-01-29 23:44 ` Bill Davidsen
2008-01-30 0:22 ` Keld Jørn Simonsen
2008-01-30 0:26 ` Peter Rabbitson
2008-01-30 22:39 ` Bill Davidsen
2008-01-30 0:32 ` Moshe Yudkowsky
2008-01-30 0:53 ` Keld Jørn Simonsen
2008-01-30 1:00 ` Moshe Yudkowsky
2008-01-31 14:40 ` Bill Davidsen
2008-01-30 13:11 ` Michael Tokarev
2008-01-30 14:10 ` Moshe Yudkowsky
2008-01-30 14:41 ` Michael Tokarev
2008-01-31 14:59 ` Bill Davidsen
2008-02-02 20:17 ` Bill Davidsen
2008-01-30 12:01 ` Peter Rabbitson
2008-01-29 16:42 ` Michael Tokarev
2008-01-29 16:26 ` Keld Jørn Simonsen
2008-01-29 16:46 ` Michael Tokarev
2008-01-29 18:01 ` Keld Jørn Simonsen
2008-01-30 13:37 ` Michael Tokarev
2008-01-30 14:47 ` Peter Rabbitson
2008-01-30 15:21 ` Keld Jørn Simonsen
2008-01-30 15:35 ` Peter Rabbitson
2008-01-30 15:46 ` Loop devices to RAID? (was Re: In this partition scheme, grub does not find md information?) Moshe Yudkowsky
2008-01-30 15:56 ` Tim Southerwood
2008-01-29 15:57 ` Moshe Yudkowsky [this message]
2008-01-29 16:37 ` In this partition scheme, grub does not find md information? Keld Jørn Simonsen
2008-01-29 16:57 ` Michael Tokarev
2008-01-30 11:03 ` David Greaves
2008-01-30 11:44 ` Moshe Yudkowsky
2008-01-30 12:00 ` WRONG INFO (was Re: In this partition scheme, grub does not find md information?) Peter Rabbitson
2008-01-30 12:41 ` David Greaves
2008-01-30 13:39 ` Michael Tokarev
2008-02-04 16:49 ` In this partition scheme, grub does not find md information? John Stoffel
2008-02-04 17:26 ` Michael Tokarev
2008-01-30 11:03 ` David Greaves
2008-01-29 14:48 ` Keld Jørn Simonsen
2008-01-29 16:00 ` Moshe Yudkowsky
2008-01-29 16:25 ` Peter Rabbitson
2008-01-29 14:04 ` Keld Jørn Simonsen
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