Re: passing options to grub in xen,openfirmware and efi

[Vladimir 'phcoder' Serbinenko]

On May 8, 2015 1:58 PM, "Olaf Hering" <address@hidden> wrote:
>
> On Fri, May 08, Andrei Borzenkov wrote:
>
> > On Fri, May 8, 2015 at 2:15 PM, Olaf Hering <address@hidden> wrote:
> > > On Fri, May 08, Vladimir 'phcoder' Serbinenko wrote:
> > >
> > >> That's not the plan which is pushed by xen guys. They propose to make grub
> > >> stored on dom0 to just load grub from a predefined place in domU. This I.a.
> > >> allows easier upgrade of bootloader for distros as they don't have to worry
> > >> about dom0 having very old grub.
> > >
> > > Thats news, where was that proposed and discussed?
> > http://xenbits.xen.org/docs/unstable/misc/x86-xenpv-bootloader.html
>
> That is chainloading, and in that sense at a different layer.
>
> The kernel= still looks just at the very first disk, or whatever disk is
> returned by "search -f /path". If grub2 would start to look at extra= it
> will be possible to select a configured disk.
>
> I just browsed the code today, grub_xen_start_page_addr->cmd_line is
> what /boot/chosen is in OF. Should be easy to add similar code to set
> variables found in that cmdline. Its then up to the scripts running in
> the binary referenced by kernel= to make use of such variables.
>
Last thing we want is to promote bad code to a more popular platform
> Olaf
>
> _______________________________________________
> Grub-devel mailing list
> address@hidden
> https://lists.gnu.org/mailman/listinfo/grub-devel