Re: grup-pc and boot iso

[Gorden]

On 11/06/2012 11:00 AM, Andrey Borzenkov wrote:
> В Tue, 06 Nov 2012 10:17:07 -0800
> Gorden<address@hidden>  пишет:
>
>    
> > On 11/06/2012 07:51 AM, Andrey Borzenkov wrote:
> >      
> > > В Mon, 05 Nov 2012 20:00:41 -0800
> > > Gorden<address@hidden>   пишет:
> > >
> > >
> > >        
> > > > set root='(hd0,msdos10)/ISO'
> > > >
> > > >          
> > > ...
> > >
> > >        
> > > > Do I have a syntax error? Or have I left something out?
> > > >
> > > >          
> > > Yes. Assuming file "ISO" is the image
> > >
> > > loopback loop0 (hd0,msdos10)/ISO
> > > set root=loop0
> > >
> > >
> > >        
> > Thanks Andrey for the reply.
> > The ISO is a directory which contains the nst-2.16.0.img file. I also
> > mounted the iso to /mnt and
> > extracted the 'vmlinuz0' and initrd.0.img files to the directory.
> > This had been suggested by some of
> > the tutorials on how to do this.
> >
> > The full "path name" would be /data/ISO/nst-2.16.0.iso for the iso.
> > And /data/ISO/vmlinuz0 and /data/ISO/initrd0.img for those two files.
> >
> > Also the /data path name is /dev/sda10, or in grub speak '(hd0,10)'.
> >
> >      
> If you want to load files from filesystem and not from ISO image you
> can simply do
>
> linux (hd0,10)/data/ISO/vmlinuz0 ... other options ...
> initrd (hd0,10)/data/ISO/initrd0.img
>
> There is no need to set root variable.
>
>    

Andrey,
I am not in IT, and I see I am not supplying enough information.
I am trying to install the '.img' file in  grub speak to  
'(hd0,msdos14)'. The old 'let's save $0.20 US, by not burning to a cdrom.
Here is the relevant part of my stock grub.cfg.

menuentry 'Windows Vista'{
insmod ntfs
set root='(hd0,1)'
search --no-floppy
chainloader +1
}
menuentry 'nst-v2.16.0_install'{
insmod part_msdos
insmod ext2
insmod iso9660
set root='(hd0,msdos10)/ISO'
###search --no-floppy--fs-uuid 
--set=root4886ac1b-e128-4e72-b826-375e0c47a75e
linux  /vmlinuz0 root=UUID=4886ac1b-e128-4e72-b826-375e0c47a75e ro quiet
initrd /initrd0.img
}
#menuentry "nst-2.16.0-ISO" {
#set isofile="/nst/nst.iso"
#loopback loop (hd0,6)$isofile
#linux (loop)/vmlinuz0 boot=/nst/nst.iso iso-scan/filename=$isofile 
noprompt noeject
#initrd (loop)/initrd.img
#}
In the 'loop' stanza above, I had the nst image file in another 
directory. And have since moved it
to the /data partition because of space constraints.

For added information, I am running Debian-6.0.5, and the nst image is 
based on Fedora16.
I don't think (?) this should make a difference as Fedora is still using 
grub-legacy.

Gorden

--
Gorden