linux-kernel - Re: Please add generic support for root=UUID= at kernel parameter command line (LABEL, BYID maybe also)

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Message-ID: <20100824120613.2ad7364a@schatten.dmk.lab>
Date:	Tue, 24 Aug 2010 12:06:13 +0200
From:	Florian Mickler <florian@...kler.org>
To:	"H. Peter Anvin" <hpa@...or.com>
Cc:	linux-kernel@...r.kernel.org
Subject: Re: Please add generic support for root=UUID= at kernel parameter
 command line (LABEL, BYID maybe also)

On Mon, 23 Aug 2010 13:11:15 -0700
"H. Peter Anvin" <hpa@...or.com> wrote:

> On 08/23/2010 01:05 PM, Florian Mickler wrote:
> > 
> > I'm not exactly shure, but isn't the search command in grub2 what you
> > want?
> > 
> > http://forums.linuxmint.com/viewtopic.php?f=46&t=38599
> > 
> > You can let grub2 figure out which drive is which and pass the right
> > devices to the kernel...
> > 
> 
> Fantastic!   So when grub2's idea of device naming doesn't match what
> the kernel ends up with, it will cause all kinds of odd failures.
> 
> This really needs to be done by Linux.  As far as doing this stuff in
> the kernel, one of the major motivations for klibc was to be able to do
> this kind of stuff without having to have people write kernel code, but
> klibc integrated into the kernel build didn't get enough support to
> actually make it in -- it still exists and is maintained as a standalone
> system, and it's possible to write a very small initramfs with it.
> 
> 	-hpa

hehe, indeed. I didn't think it through :) 


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