Re: A further question on my "how to move to an NVME disk" question

[Pascal Hambourg]

Le 21/11/2019 à 22:39, Chris Green a écrit :
> I.e. does grub insist on its configuration/files being in a directory
> called /boot?

No, but Ubuntu, like many distributions, puts kernel files and grub.cfg 
in /boot and grub-mkconfig looks for kernel files there.

> Further to this I suppose I can create a small new partition on the
> 'relatively fast' SATA SSD in which I create the /boot for the new
> 19.10 installation on /dev/nvme0n1p2.  This wouldn't be an issue.
>
> So, I *think* the resulting configuration would be:-
>
>      /dev/sda - unused, spare spinning disk
>
>      /dev/sdb
>          /dev/sdb1 - Linux partition with /boot and the rest of 19.04 
> installation
>          /dev/sdb2 - Small partition with /boot for 19.10 whose files are on 
> /dev/nvme0n1p2
>
>      /dev/sdc
>          /dev/sdc1 - /home
>
>      /dev/nvme0n1
>          /dev/nvme0n1p1 - swap
>          /dev/nvme0n1p2 - 19.10 installation (but no /boot)
>
> ... but I still don't quite know how to tell 
> grub-mkconfig/grub-install/update-grub
> how to make things like this.

In Ubuntu 19.10, just mount /dev/sdb2 on /boot.