Re: [RFC] Dynamic device.map

[Bruce Dubbs <bruce.dubbs@gmail.com>]

Colin Watson wrote:
> On Thu, Jan 07, 2010 at 04:18:37PM -0600, Bruce Dubbs wrote:
>> Robert Millan wrote:
>>> On Wed, Jan 06, 2010 at 04:00:23PM +0000, Colin Watson wrote:
>>>>> Just leave it with (/dev/foo).
>>>> You mean literally with the parentheses? I don't understand, since /dev/
>>>> names will be unintelligible to GRUB when running outside an operating
>>>> system.
>>> Yes.  This just means we'd have "set root=(/dev/foo)" statements in grub.cfg,
>>> but those are just meant as a backward compatibility hack for pre-UUID GRUB
>>> installs.
>> Are you are implying that UUID will be the only way?  I don't use  
>> initrd's on my systems so I need root=(hd0,x) or root=(/dev/foo).
>> AFAIK initrd is the only way to load with UUIDs.
> 
> I think you're mixing up two different things. There are two 'root'
> variables involved:
> 
>   1) GRUB's 'root' variable, its base for filesystem operations
>   2) The root= parameter passed to the Linux kernel, which identifies
>      the desired root filesystem
> 
> Robert is talking about 1), but whether you use an initrd/initramfs is
> only relevant to 2).

OK, I didn't realize set root was capable of using UUIDs.  I did know 
that the two root entries were different.  I got that mixed up with the 
search command combined with the root=UUID=... which I think needs initrd.

Do I have it right now?

Should 'set root' be renamed to 'set grubroot'?  I think something like 
that would prevent some confusion.

   -- Bruce