Configuring/using grub with grub-install and grub-mkconfig

[Bret Busby]

On 17/11/2019, Chris Green <cl at isbd.net> wrote:
> I have been searching around (and asking questions) about how to add a
> separate /boot partition.  As a result I have become steadily *more*
> confused about the relationship between grub-mkconfig and grub-install.
>
> So, is there a good tutorial anywhere about all this?  Much of what I
> have found goes into detail about how grub2 is different from the
> original grub but doesn't really give details of how to use grub2.
>
> I just need to reconfigure my system to use a separate (small) boot
> partition and a large (non bootable from BIOS) main partition.
>
> So, currently I have:-
>
>     /dev/sdb1         112515  15996     90782  15% /
>     /dev/sdc1         938771 275489    615589  31% /home
>
> with xubuntu 19.04 booting from /boot on /dev/sdb1.
>
> What I want to do is add /dev/sda and install /boot on that partition.
>
>
> So I can mount /dev/sda1, no problem there.  So what do I do next?
> Do I run grub-install?  Do I run grub-mkconfig?
>
> I am fairly unix/linux aware (like 40 years aware!) and have done
> quite 'techy' things in my time like build custom kernels and such but
> this has got me really confused.
>
> I suspect what I may have to do is try this out on a spare system (I
> have a few PCs around which are redundant) and "see what happens".
> However it does seem rather poorly documented.
>
> --
> Chris Green
>
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>

I do not know whether this will lead to what you seek, but, perhaps,
you could look at
https://lists.gnu.org/mailman/listinfo/help-grub
and subscribe to that list, and, ask there?


-- 
Bret Busby
Armadale
West Australia
..............

"So once you do know what the question actually is,
 you'll know what the answer means."
- Deep Thought,
 Chapter 28 of Book 1 of
 "The Hitchhiker's Guide to the Galaxy:
 A Trilogy In Four Parts",
 written by Douglas Adams,
 published by Pan Books, 1992

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