GRUB2 partition numbers are 1-based now?

GRUB2 partition numbers are 1-based now?

[Darron Black]

I'd like to make sure I'm not going crazy.

 From the Ubuntu 9.10 installs I've done recently, I've noticed 
/dev/sda1 -> (hd0,1), /dev/sda2 -> (hd0,2), etc, etc.

At first I thought it was a bug with the grub.cfg generation...  since I 
was only getting the grub> prompt on boot and typing in the same line 
with (hd0,N-1) worked.  (I guess because the UUID overrode it?) 

I investigated and noticed that the function that built the device name 
(on the wrong OS at the moment, so can't look it up) definitely did a + 1.

I've quickly searched the archive (probably somewhat clumsily) and I 
didn't turn up anything definitive.

So...  (hd0,N) partitions are officially 1-based now, right?   That's 
super confusing.  Could a note be added to the autogenerated grub.cfg?  :)


Darron

Re: GRUB2 partition numbers are 1-based now?

[Darron Black]

Darron Black wrote:
> I'd like to make sure I'm not going crazy.
>
> From the Ubuntu 9.10 installs I've done recently, I've noticed 
> /dev/sda1 -> (hd0,1), /dev/sda2 -> (hd0,2), etc, etc.
>
> At first I thought it was a bug with the grub.cfg generation...  since 
> I was only getting the grub> prompt on boot and typing in the same 
> line with (hd0,N-1) worked.  (I guess because the UUID overrode it?)
> I investigated and noticed that the function that built the device 
> name (on the wrong OS at the moment, so can't look it up) definitely 
> did a + 1.
>
> I've quickly searched the archive (probably somewhat clumsily) and I 
> didn't turn up anything definitive.
>
> So...  (hd0,N) partitions are officially 1-based now, right?   That's 
> super confusing.  Could a note be added to the autogenerated 
> grub.cfg?  :)
>
>
> Darron
>
>

Nevermind.

I just did a fresh google search and turned up the archlinux wiki, which 
clearly shows partitions starting at 1 now.

I'm not sure why I couldn't find anything earlier.  It being 2am when I 
had the problem might have had something to do with it.

However, a quick mention in the grub.cfg would be nice.  :)


Darron