GRUB Section in 11.04 Preseed file

[Marc Deslauriers]

On Fri, 2011-06-17 at 12:34 -0500, nikhil . wrote:
> On Thu, 2011-06-16 at 15:23 -0500, nikhil . wrote:
> > Hi Guys, 
> >  
> > In my company we use the Ubuntu alternate ISO to automate our Ubuntu
> > deployments on many hundreds of systems. I'm trying to test Ubuntu
> > 11.04 installs now and have gone past several issues in the preseed
> > file but I'm stuck with an error in GRUB install. 
> >  
> > In 11.04 x64 installer, I get a prompt for "Select location for
> > installing GRUB" and then I enter /dev/sda but this does not work. I
> > have tried /dev/sda1, /dev/sda3, /dev/sda5 (all are valid partitions).
> > My section in preseed file is 
> >  
> > d-i grub-installer/only_debian boolean false
> > d-i grub-installer/with_other_os boolean false
> > d-i grub-installer/bootdev  string /dev/sda1
> > 
> >  What is strange is that the above section works for the 11.04 32-bit
> > installer without a problem. 
> >  
> > Has anyone seen this? Please help.
> 
> >>I think you need to specify the partition in a grub format, ie:
> 
> >>d-i grub-installer/bootdev  string (hd0)
> 
> >>Marc.
>  
> Hi Marc, 
>  
> In previous versions of Ubuntu the grub format (hd0,0) used to workl.
> In Ubuntu 11.04 x86, I encountered an error which went away after I
> changed the format to /dev/sda. But for x64 the error appears with
> both formats. 
>  

Ah, yes, it apparently changed to /dev/sda style strings in Natty. Sorry
for the misinformation.

What's the exact error message you are getting on amd64?

Marc.