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From: Nicolas Sebrecht <nsebrecht@piing.fr>
To: gentoo-user@lists.gentoo.org
Cc: Nicolas Sebrecht <nsebrecht@piing.fr>
Subject: [gentoo-user] Re: [O/T] RAID help - now won't boot
Date: Tue, 22 Oct 2013 09:10:18 +0200	[thread overview]
Message-ID: <20131022071018.GB8510@nicolas-desktop.logifi.fr> (raw)
In-Reply-To: <201310212243.07180.michaelkintzios@gmail.com>

The 21/10/13, Mick wrote:

> I'm fast gravitating towards this option ...
> 
> Although with metadata 0.90 I was able to progress with the installation 
> (after I deselected the swap partitions) the grub-install script wanted to 
> install in /dev/md127p1 but it failed.  I had to override the Ubuntu installer 
> since I could only install grub in the /dev/md127 block device.

Which is the one we expect. /dev/md127p1 is the first partition of
/dev/md127.

>                                                                  BTW, I'm 
> still at a loss as to why for Ubuntu the RAID 1 is seen as /dev/md127 and not 
> /dev/md0 which I created originally with sysrescuecd.

Names of RAID devices are built at boot time. It depends on
/etc/mdadm.conf which should be part of the initramfs. Otherwise,
consider the name random.

> Either way, it won't boot again.  Now it stays on a blank screen, no error at 
> all shown.

I don't understand why this blank screen. Or do you mean a black screen?

>             I'll have another go with sysrescueCD to see if I install grub on 
> /dev/sda and /dev/sdb and if this does not work either, 

It should work. Linux software RAID is assembled once the kernel is up
and running. Before, the system boot as usual on a single disk. Though,
I'm not sure how mdadm will handle the disk change behind his back.

Once the installed system is bootable, I suggest you to try to reinstall
grub. This will be required at some point in time in the future to
update it either way.

>                                                         I'll stop wasting time 
> and follow your suggestion of installing on a single disk first, before I 
> mirror it thereafter.

-- 
Nicolas Sebrecht


  reply	other threads:[~2013-10-22  7:10 UTC|newest]

Thread overview: 18+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2013-10-15  7:34 [gentoo-user] RAID help Mick
2013-10-15 19:28 ` Paul Hartman
2013-10-15 21:42   ` Mick
2013-10-16 18:10     ` [gentoo-user] " Nicolas Sebrecht
2013-10-16 20:14       ` Nicolas Sebrecht
2013-10-17  5:33         ` Mick
2013-10-20  9:54         ` [gentoo-user] Re: [O/T] RAID help - now won't boot Mick
2013-10-20 12:57           ` Michael Hampicke
2013-10-20 13:13             ` Mick
2013-10-20 13:31               ` Michael Hampicke
2013-10-20 14:31                 ` joost
2013-10-21  5:33                   ` Mick
2013-10-21  5:59                     ` J. Roeleveld
2013-10-21  8:24                       ` Nicolas Sebrecht
2013-10-21  8:55                         ` J. Roeleveld
2013-10-21 21:42                           ` Mick
2013-10-22  7:10                             ` Nicolas Sebrecht [this message]
2013-10-24 18:53                               ` Mick

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