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From: Luca Berra <bluca@comedia.it>
To: Linux RAID <linux-raid@vger.kernel.org>
Subject: Re: Linux mdadm superblock question.
Date: Tue, 16 Feb 2010 20:38:07 +0100	[thread overview]
Message-ID: <20100216193806.GA873@maude.comedia.it> (raw)
In-Reply-To: <201002161537.08487.volkerarmin@googlemail.com>

On Tue, Feb 16, 2010 at 03:37:08PM +0100, Volker Armin Hemmann wrote:
>so assume you have an initrd and metadata 1.x without auto assembling.
>
>You do some changes to the raid and screw up something else. Next boot nothing 
>works. Mostly because the mdadm.conf in your initrd is not correct.
>
>You whip out your trusty usb stick with a resuce system - and you are stuck. 
>If autoassembling would work, you would have working md devices you could 
>mount and edit the files you have to. But you don't and the mdadm.conf in the 
>initrd is outdated.
>
>Sounds like 'you are screwed'.

did you ever try this?
mdadm is able to activate an array without need of any configuration
file.
The reason a configuration file is copied in initrd is solely to
preserve non-default activation parameters (i.e. array name) and such.

>And that because ...? Is there any good reason not to have autoassmbling in 
>the kernel?

about the same reason why the X server is not in the kernel as well.

L.

-- 
Luca Berra -- bluca@comedia.it
         Communication Media & Services S.r.l.
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  parent reply	other threads:[~2010-02-16 19:38 UTC|newest]

Thread overview: 141+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2010-02-14  1:51 Linux mdadm superblock question Volker Armin Hemmann
2010-02-14  1:51 ` Volker Armin Hemmann
2010-02-14  4:02 ` Michael Evans
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 [this message]
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  2:38             ` Volker Armin Hemmann
2010-02-17 23:15             ` Neil Brown
2010-02-17  6:34           ` Kyle Moffett
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
2010-02-18  3:40                     ` Goswin von Brederlow
2010-02-17 16:22               ` Kyle Moffett
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 22:29                                 ` boot times, not mdadm (was: Linux mdadm superblock question.) martin f krafft
2010-02-17 23:24                           ` (boot time consequences of) Linux mdadm superblock question Neil Brown
2010-02-17 23:50                             ` martin f krafft
2010-02-18  2:58                             ` Henrique de Moraes Holschuh
2010-02-18  3:26                               ` martin f krafft
2010-02-18  4:03                                 ` Daniel Reurich
2010-02-18  4:40                                   ` martin f krafft
2010-02-18  5:10                                     ` Neil Brown
2010-02-18  5:21                                       ` martin f krafft
2010-02-18  5:34                                         ` Neil Brown
2010-02-19  0:42                                           ` martin f krafft
2010-02-19  2:51                                             ` Daniel Reurich
     [not found]                                               ` <20100221171445.GB17267@lapse.rw.madduck.net>
2010-02-22  7:06                                                 ` Goswin von Brederlow
2010-02-22  7:37                                                   ` Bug#567468: " Michael Evans
2010-02-22  9:14                                                     ` martin f krafft
2010-02-22  9:11                                                   ` martin f krafft
2010-02-22 10:42                                                     ` Daniel Reurich
2010-02-19  9:16                                             ` Piergiorgio Sartor
     [not found]                                               ` <20100221174007.GB19058@lapse.rw.madduck.net>
     [not found]                                                 ` <20100221201304.GB2570@lazy.lzy>
2010-02-22  9:16                                                   ` Bug#567468: md homehost (was: Bug#567468: (boot time consequences of) Linux mdadm superblock) question martin f krafft
2010-02-22 11:11                                                     ` Daniel Reurich
2010-02-23  7:29                                                       ` md homehost Goswin von Brederlow
2010-02-23  8:10                                                         ` martin f krafft
2010-02-23  2:30                                                     ` md homehost (was: Bug#567468: (boot time consequences of) Linux mdadm superblock) question Neil Brown
2010-02-23  6:27                                                       ` martin f krafft
2010-02-23  7:31                                                         ` md homehost Goswin von Brederlow
2010-02-23  8:16                                                           ` Bug#567468: " martin f krafft
2010-02-24 13:13                                                             ` Goswin von Brederlow
2010-02-24 17:52                                                               ` Mario 'BitKoenig' Holbe
2010-02-24 22:23                                                                 ` Neil Brown
2010-02-23  8:18                                                           ` Piergiorgio Sartor
2010-02-24  0:10                                                         ` md homehost (was: Bug#567468: (boot time consequences of) Linux mdadm superblock) question Neil Brown
2010-02-24  4:12                                                           ` Michael Evans
2010-02-24 13:41                                                           ` md homehost Goswin von Brederlow
2010-02-24 22:30                                                             ` Neil Brown
2010-02-25  7:16                                                               ` Goswin von Brederlow
2010-02-25  7:46                                                                 ` Neil Brown
2010-02-25  8:33                                                                   ` Michael Evans
2010-02-25 11:55                                                                 ` Mario 'BitKoenig' Holbe
2010-02-18  5:17                                     ` (boot time consequences of) Linux mdadm superblock question Daniel Reurich
2010-02-18  5:22                                       ` martin f krafft
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
2010-02-19  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
  -- strict thread matches above, loose matches on Subject: below --
2010-02-11 23:00 Justin Piszcz
2010-02-12  1:52 ` Michael Evans
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 21:07           ` 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  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
2010-02-17 23:11     ` Neil Brown
2010-02-16 17:24   ` Bill Davidsen

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