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

[Chris Green]

On Thu, Nov 21, 2019 at 07:49:17PM +0100, sashab wrote:
> Hi Chris,
> 
> for trial'n'error you could
>     mount /dev/nvme0n1p2 /mnt
> and try if
>     update-grub
> tells you about any "other" OS'es found.
> (There sould be an os-autodetect script supplied with the grub package.)
> 
> 
Hmm, yes, I've now hit another problem!

Running os-prober shows the xubuntu 19.10 installed on /dev/nvme0n1p2
and so I've run update-grub which seems to work:-

    root@esprimo# update-grub
    Sourcing file `/etc/default/grub'
    Sourcing file `/etc/default/grub.d/init-select.cfg'
    Generating grub configuration file ...
    Found linux image: /boot/vmlinuz-5.0.0-36-generic
    Found initrd image: /boot/initrd.img-5.0.0-36-generic
    Found linux image: /boot/vmlinuz-5.0.0-35-generic
    Found initrd image: /boot/initrd.img-5.0.0-35-generic
    Found Ubuntu 19.10 (19.10) on /dev/nvme0n1p2
    Found Ubuntu 19.10 (19.10) on /dev/sda1
    done
    root@esprimo# 

However trying to boot 19.10 from /dev/nvme0n1p2 fails with "No such
device c6ca1c2d-4837-48b9-8fa6-1ef47251d7b7" whereas booting it from
/dev/sda1 (a spare SATA spinning disk) boots OK.  The device UUID is
correct for /dev/nvme0n1p2 so I guess grub isn't able to read the NVME
SSD for some reason.  How do I get over *this* issue! :-)


-- 
Chris Green