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From: Michael Evans <mjevans1983@gmail.com>
To: Justin Piszcz <jpiszcz@lucidpixels.com>
Cc: linux-raid@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: Linux mdadm superblock question.
Date: Thu, 11 Feb 2010 17:52:41 -0800	[thread overview]
Message-ID: <4877c76c1002111752h23e14f7aibe58a89181e6f493@mail.gmail.com> (raw)
In-Reply-To: <alpine.DEB.2.00.1002111758350.12031@p34.internal.lan>

On Thu, Feb 11, 2010 at 3:00 PM, Justin Piszcz <jpiszcz@lucidpixels.com> wrote:
> Hi,
>
> I may be converting a host to ext4 and was curious, is 0.90 still the only
> superblock version for mdadm/raid-1 that you can boot from without having to
> create an initrd/etc?
>
> Are there any benefits to using a superblock > 0.90 for a raid-1 boot volume
> < 2TB?
>
> Justin.
> --
> To unsubscribe from this list: send the line "unsubscribe linux-raid" in
> the body of a message to majordomo@vger.kernel.org
> More majordomo info at  http://vger.kernel.org/majordomo-info.html
>

You need the superblock at the end of the partition:  If you read the
manual that is clearly either version 0.90 OR 1.0 (NOT 1.1 and also
NOT 1.2; those use the same superblock layout but different
locations).

  reply	other threads:[~2010-02-12  1:52 UTC|newest]

Thread overview: 93+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2010-02-11 23:00 Linux mdadm superblock question Justin Piszcz
2010-02-12  1:52 ` Michael Evans [this message]
2010-02-12  9:06   ` Robin Hill
2010-02-12 21:53     ` Mr. James W. Laferriere
2010-02-16  0:57       ` Neil Brown
2010-02-16 16:42       ` Bill Davidsen
2010-02-13 19:58   ` H. Peter Anvin
2010-02-13 20:07     ` Justin Piszcz
2010-02-13 20:49       ` david
2010-02-13 21:07         ` Michael Evans
2010-02-13 21:29       ` H. Peter Anvin
2010-02-14 20:25         ` Asdo
2010-02-14 21:18           ` H. Peter Anvin
2010-02-14 21:34             ` Henrique de Moraes Holschuh
2010-02-14 23:20             ` Rudy Zijlstra
2010-02-15  3:40               ` Mr. James W. Laferriere
2010-02-15  7:12                 ` Luca Berra
2010-02-16  0:38                   ` Neil Brown
2010-02-16  0:27     ` Neil Brown
2010-02-16  1:24       ` H. Peter Anvin
2010-02-16  3:18         ` david
2010-02-16  4:42           ` John Robinson
2010-02-16  7:02           ` H. Peter Anvin
2010-02-16  8:46             ` Rudy Zijlstra
2010-02-16 17:05         ` Bill Davidsen
2010-02-16 23:30           ` H. Peter Anvin
2010-02-16 10:12       ` Giovanni Tessore
2010-02-17 23:10         ` Neil Brown
2010-02-16  3:40   ` CaT
2010-02-13  6:42 ` martin f krafft
2010-02-13  8:37 ` Giovanni Tessore
2010-02-13  9:26   ` Michael Evans
2010-02-13  9:35     ` Giovanni Tessore
2010-02-13  9:40       ` Michael Evans
2010-02-13 10:06         ` Giovanni Tessore
2010-02-16  0:50 ` Neil Brown
2010-02-16 13:14   ` Justin Piszcz
2010-02-16 20:09     ` mdadm FAQ (was: Linux mdadm superblock question.) martin f krafft
2010-02-17 23:11     ` Linux mdadm superblock question Neil Brown
2010-02-16 17:24   ` Bill Davidsen
  -- strict thread matches above, loose matches on Subject: below --
2010-02-14  1:51 Volker Armin Hemmann
2010-02-14  4:02 ` Michael Evans
2010-02-14  7:21   ` david
2010-02-14  8:38     ` Michael Evans
2010-02-14 18:40   ` Volker Armin Hemmann
2010-02-14 18:53     ` John Robinson
2010-02-14 21:16       ` Gabor Gombas
     [not found]       ` <201002142013.24922.volkerarmin@googlemail.com>
2010-02-16 14:28         ` John Robinson
2010-02-16 14:37           ` Volker Armin Hemmann
2010-02-16 14:46             ` Robin Hill
2010-02-16 17:23             ` John Robinson
2010-02-16 19:38             ` Luca Berra
2010-02-16 17:18     ` Bill Davidsen
2010-02-16 21:06       ` Volker Armin Hemmann
2010-02-16 22:00         ` Nick Bowler
2010-02-16 22:18           ` Volker Armin Hemmann
2010-02-17 14:25             ` Nick Bowler
2010-02-18  9:27             ` Ian Dall
2010-02-17  1:03       ` Mr. James W. Laferriere
2010-02-17  2:01         ` Neil Brown
2010-02-17  2:38           ` Volker Armin Hemmann
2010-02-17 23:15             ` Neil Brown
2010-02-17  6:34           ` Kyle Moffett
2010-02-17  9:38             ` Rudy Zijlstra
2010-02-17 13:26               ` Frans Pop
2010-02-17 20:54                 ` Gabor Gombas
2010-02-17 21:29                   ` Frans Pop
2010-02-18  3:40                   ` Goswin von Brederlow
2010-02-17 16:22               ` Kyle Moffett
2010-02-17 17:41                 ` david
2010-02-17 18:10                   ` Nick Bowler
2010-02-17 18:27                     ` Volker Armin Hemmann
2010-02-17 18:37                       ` Nick Bowler
2010-02-17 18:41                         ` david
2010-02-17 18:51                           ` Nick Bowler
2010-02-17 21:17                             ` david
2010-02-17 21:37                               ` Nick Bowler
2010-02-17 22:21                                 ` david
2010-02-17 18:46                         ` Volker Armin Hemmann
2010-02-17 22:26                           ` H. Peter Anvin
2010-02-18  3:33                     ` Goswin von Brederlow
2010-02-18  7:51                       ` Luca Berra
2010-02-18 14:12                       ` Nick Bowler
2010-02-19  9:04                         ` Michael Evans
2010-02-14 19:34   ` Henrique de Moraes Holschuh
2010-02-14 20:07     ` Michael Evans
2010-02-14 21:14       ` Henrique de Moraes Holschuh
2010-02-14 20:47     ` Asdo
2010-02-14 21:26       ` Henrique de Moraes Holschuh
2010-02-14 21:28       ` Gabor Gombas
2010-02-15  9:08         ` martin f krafft
2010-02-15  7:51 ` Luca Berra
     [not found] <edBWa-K7-9@gated-at.bofh.it>
     [not found] ` <edDXX-3XC-7@gated-at.bofh.it>
     [not found]   ` <edRHA-7bL-13@gated-at.bofh.it>
     [not found]     ` <eezfA-4N7-11@gated-at.bofh.it>
2010-02-16 21:10       ` Bodo Eggert

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