Is anyone dual-booting both an older & newer Ubuntu version on a machine with nVidia graphics?

[Little Girl]

Hey there,

Liam Proven wrote:
>Little Girl wrote:
>>
>> Are either of these of any use?
>
>Sadly no.
>
>> https://www.reddit.com/r/Ubuntu/comments/177b1ve/no_support_for_nvidia_graphics_cards_in_ubuntu/
>
>You'll see I already commented there.

My mistake. I was looking at content rather than authors.

>> https://forums.developer.nvidia.com/t/nvidia-535-86-05-unable-to-install-on-ubuntu-23-04/262011
>
>I need driver version 390 and it's unsupported and doesn't work on
>kernel 6.5.

The suggestion by Error404 on this page might work:

https://askubuntu.com/questions/1392507/nvidia-driver-broken-on-update-unable-to-reinstall

But before you try that, you might want to try something I had to do
recently. It occurs to me that I ran into a somewhat similar issue to
yours after an update this past June. I wasn't able to boot
afterward, but my symptoms were a bit different from yours.

The explanation that was given to me was that it's likely the initrd
just didn't get updated for the latest kernel and that that can
happen when the kernel and the drivers get updated together.

This is the first command that was recommended to me, but it didn't
fix the issue:

	sudo apt install --fix-broken

This command was then recommended, because it brings in the NVIDIA
drivers and updates initramrd automatically:

	sudo ubuntu-drivers install

That worked like a charm. It might work for you, too.

-- 
Little Girl

There is no spoon.