[blfs-support] Moving Grub to a different partition

Richard Melville richard.melville69 at googlemail.com
Thu Dec 4 04:19:43 PST 2014


On 4 December 2014 at 11:37, Cliff McDiarmid <cliffhanger at gardener.com>
wrote:

> Sent: Thursday, December 04, 2014 at 10:15 AM
> From: "Richard Melville" <richard.melville69 at googlemail.com>
> To: "BLFS Support List" <blfs-support at lists.linuxfromscratch.org>
> Subject: Re: [blfs-support] Moving Grub to a different partition
>
> On 3 December 2014 at 20:12, Cliff McDiarmid <cliffhanger at gardener.com>
> wrote:Sent: Wednesday, December 03, 2014 at 7:44 PM
> From: "Bruce Dubbs" <bruce.dubbs at gmail.com[bruce.dubbs at gmail.com]>
> To: "BLFS Support List" <blfs-support at lists.linuxfromscratch.org[
> blfs-support at lists.linuxfromscratch.org]>
> Subject: Re: [blfs-support] Moving Grub to a different partition
> Cliff McDiarmid wrote:
> > Hi
> > I have two LFS installations, on different partitions, on the same
> > drive(/dev/sda). I have the older LFS(/dev/sda7) , with grub, booting at
> > present to the grub menu. I need the new LFS(/dev/sda6) to take over the
> > booting, so I've installed Grub to this LFS.
> > Am I right in thinking that I now need to run(from the new LFS):
> >
> > 'grub-install --root-directory=/boot/grub /dev/sda'
> >
> > to activate, having earlier deleted Grub from the old LFS and copied
> the'grub.cfg' file over?
>
>
> >What I recommend is to create a separate partition for /boot. It does
> >not need to be large. 100 or 200 MB is sufficient. I use ext2 since a
> >journal is not really needed for a partition that is rarely written.
>
> >Then move all your kernels, configs, and System-maps there and mount as
> >/boot. Enter the partition in in fstab.
>
> >Now all your installs can share the same /boot and there is no confusion
> >about how to share kernels or where grub.cfg is located.
>
> >Yes your right, this is the best way.  I've not gone for it in the past,
> but now's the time.
>
>
> >As a point of information, a separate /boot doesn't have to be mounted in
> order to function.
>
> Okay.  This seems contrary to the LFS book or am I not understanding this?


I don't wish to confuse you Cliff; I'm just saying that a separate /boot
can be mounted, or not, and still function.  If in doubt, follow the book.

Richard
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