Re: [RFC] Dynamic device.map

[Colin Watson <cjwatson@ubuntu.com>]

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).

-- 
Colin Watson                                       [cjwatson@ubuntu.com]