linux-kernel - Re: Drives missing at boot

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Message-ID: <20100706112650.GA28794@attic.humilis.net>
Date:	Tue, 6 Jul 2010 13:26:50 +0200
From:	Sander <sander@...ilis.net>
To:	Mark Knecht <markknecht@...il.com>
Cc:	Robert Hancock <hancockrwd@...il.com>, Tejun Heo <tj@...nel.org>,
	Stan Hoeppner <stan@...dwarefreak.com>,
	Linux Kernel List <linux-kernel@...r.kernel.org>,
	"linux-ide@...r.kernel.org" <linux-ide@...r.kernel.org>
Subject: Re: Drives missing at boot

Mark Knecht wrote (ao):
> On Mon, Jul 5, 2010 at 4:59 PM, Robert Hancock <hancockrwd@...il.com> wrote:
> > On some machines changing from IDE to AHCI messes up the boot order
> > selection in the BIOS - you may have to switch to AHCI, save settings,
> > reboot, go back into the BIOS and then make sure the disk boot order
> > settings are correct (whatever drive grub is installed on needs to be
> > first).
> 
> That's a very interesting idea Robert. Thanks.
> 
> I'll have to be careful. I have 5 identical drives in the machine so
> figuring out which is which when I'm in BIOS might be a bit of a
> trick.
> 
> I'll give it a go and report back.

You can install grub on the mbr of all disks and not worry about the
order. Especially if you work with UUIDs.

	Sander

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