Re: proper way to install to partition

[Andrei Borzenkov]

В Wed, 03 Dec 2014 23:29:42 +0100
Tomas Cech <address@hidden> пишет:

> At Wed, 3 Dec 2014 13:30:14 -0800,
> Jordan Uggla wrote:
> > 
> > On Tue, Dec 2, 2014 at 10:51 AM, Tomas Cech <address@hidden> wrote:
> > > Hi,
> > >
> > > during my experiments with Guix I run into problems with GRUB. I'm
> > > trying to install GRUB into partition with EXT4 filesystem containing
> > > Guix.
> > 
> > Why are you trying to install grub's boot sector to a partition? It's
> > rarely makes sense to do so. Installing to the MBR being the obvious
> > choice if you want grub to be your primary bootloader, and using
> > multiboot to load grub's core.img from the filesystem (i.e. no boot
> > sector at all) if you want another bootloader to reside in the MBR.
> > What is your end goal?
> 
> As I wrote, I currently experiment with Guix distribution.
> 
> If I used MBR, my grub installation or configuration could be
> overwritten, broken or so - Guix is still alpha.
> 
> I set up instead chainloading - grub loading either Gentoo, openSUSE
> or another Grub, configured and managed by Guix - this could also work
> as description of my goal.
> 
> I'm not sure how to use multiboot, but it may be solution as well...
> 
> Maybe I could create section like this with the same effect, but without 
> embedding?:
> 
> menuentry "Guix" {
>   search --set=root --label GRUB --hint hd0,msdos4
>   multiboot /boot/grub/i386-pc/core.img

That is enough.

>   configfile /boot/grub/grub.cfg

This is not needed (and I do not know what happens). Location of
grib.cfg is encoded in core.img; although I believe multiboot allows
passing parameters to executed binary, as of now grub does not parse
them. 

Configfile causes your current instance to read and execute new
configuration file.

> }
> 
> Best regards,
> 
> Tomas Cech
> Sleep_Walker
> 
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