From: "H. Peter Anvin" <hpa@zytor.com>
To: Doug Ledford <dledford@redhat.com>
Cc: Janek Kozicki <janek_listy@wp.pl>, linux-raid@vger.kernel.org
Subject: Re: switching root fs '/' to boot from RAID1 with grub
Date: Thu, 01 Nov 2007 10:31:38 -0700 [thread overview]
Message-ID: <472A0D7A.4040807@zytor.com> (raw)
In-Reply-To: <1193781699.10336.585.camel@firewall.xsintricity.com>
Doug Ledford wrote:
>
> device /dev/sda (hd0)
> root (hd0,0)
> install --stage2=/boot/grub/stage2 /boot/grub/stage1 (hd0) /boot/grub/e2fs_stage1_5 p /boot/grub/stage2 /boot/grub/menu.lst
> device /dev/hdc (hd0)
> root (hd0,0)
> install --stage2=/boot/grub/stage2 /boot/grub/stage1 (hd0) /boot/grub/e2fs_stage1_5 p /boot/grub/stage2 /boot/grub/menu.lst
>
> That will install grub on the master boot record of hdc and sda, and in
> both cases grub will look to whatever drive it is running on for the
> files to boot instead of going to a specific drive.
>
No, it won't... it'll look for the first drive in the system (BIOS drive
80h). This means that if the BIOS can see the bad drive, but it doesn't
work, you're still screwed.
-hpa
next prev parent reply other threads:[~2007-11-01 17:31 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-10-30 20:07 switching root fs '/' to boot from RAID1 with grub Janek Kozicki
2007-10-30 20:37 ` Janek Kozicki
2007-10-30 22:01 ` Doug Ledford
2007-10-31 15:01 ` Janek Kozicki
2007-10-31 17:38 ` Doug Ledford
2007-10-31 20:12 ` xosview + RAID (was: switching root fs '/'...) Janek Kozicki
2007-10-31 20:47 ` xosview + RAID David Greaves
2007-11-01 17:31 ` H. Peter Anvin [this message]
2007-11-01 18:30 ` switching root fs '/' to boot from RAID1 with grub Doug Ledford
2007-11-01 18:57 ` H. Peter Anvin
2007-11-02 15:55 ` Doug Ledford
2007-11-01 19:04 ` Janek Kozicki
2007-11-01 19:20 ` Doug Ledford
2007-11-02 16:36 ` berk walker
2007-11-04 3:18 ` Bill Davidsen
2007-11-04 3:44 ` H. Peter Anvin
2007-11-04 4:28 ` Bill Davidsen
2007-11-04 18:02 ` H. Peter Anvin
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