Re: [gentoo-dev] grub-2 configuration

[Joakim Tjernlund]

On Wed, 2016-10-19 at 15:21 -0400, Tom H wrote:
> On Tue, Oct 18, 2016 at 1:20 PM, Joakim Tjernlund
> <Joakim.Tjernlund@××××××××.com> wrote:
> >
> > On Tue, 2016-10-18 at 12:45 -0400, Tom H wrote:
> > >
> > > On Tue, Oct 11, 2016 at 10:54 AM, M. J. Everitt <m.j.everitt@×××.org> wrote:
> > > >
> > > > On 11/10/16 15:42, Tom H wrote:
> > > > >
> > > > >
> > > > > You can use exactly the same text in 40_grub that you'd use in
> > > > > grub.cfg and have the latter generated.
> > > >
> > > > That's a useful tit-bit .. thanks!
> > >
> > > You're welcome.
> > >
> > > I doubt that the grub developers intended 40_custom to be the only
> > > "/etc/grub.d/" file to be executed but it's practical for generating a
> > > simple grub.cfg. This is what I use in a Debian VM:
> >
> > We still use grub-1 and I really like the automatic generation of new
> > grub menu entries using genkernel --bootloader=grub, does this work
> > with grub2 as well?
>
> It looks ike you can pass "--bootloader=grub2" but it's not documented
> in the man page because gen_bootloader.sh has:

OK, good.

>
> set_bootloader() {
> case "${BOOTLOADER}" in
> grub)
> set_bootloader_grub
> ;;
> grub2)
> set_bootloader_grub2
> ;;
> *)
> print_warning "Bootloader ${BOOTLOADER} is not currently supported"
> ;;
> esac
> }
>
> but it looks like, unlike for grub-legacy, you need a grub config file
> ("/boot/grub{,2}/grub.cfg") to exist.

That is reasonable, to create a new entry one needs to copy the previous and replace the
kernel.

Would be nice if someone could confirm this though.

    Jocke