FYI: update-grub / grub-mkconfig somewhat "broken"

[Liam Proven]

On Sun, 14 Feb 2021 at 16:52, Robert Heller <heller at deepsoft.com> wrote:

> And the 16.04 can be upgraded to 18.04, with all of the personalizations
> intact...

Also true, yes.

For clarity: 16.04 can be upgraded to 20.04 but not _directly_ to
20.04 -- you always have to go to the next LTS in sequence.

Whereas 16.04 to 18.04 is a direct upgrade with no intermediate stages.

I have to say, though, that in my own experience, 18.04 -> 20.04 was
fairly painless and trouble-free. Everything worked afterwards, I just
had to go through some annoying forced reboots until GNOME stopped
trying to remind me about _every appointment in my Google Calendar in
the last 2 years_.

16.04 -> 18.04 was a pain. The upgrade failed, and I had to reboot,
fix it with `apt install -f` and `dpkg-reconfigure -a` and then it
installed all the rest of the updates. After another reboot, I had
only GNOME Shell -- Unity had been removed. I had to manually
reinstall it.

This is why I have been experimenting with the Unity remix.
Unfortunately, someone somewhere added GNOME-Shell as a dependency for
the ubuntu-unity-desktop metapackage, so currently, all Ubuntu Unity
installs have GNOME Shell _as well_. Rudra is working on it -- he has
removed GNOME Shell from the login screen, for instance, and replaced
GNOME Files with Cinnamon's Nemo file manager.

I do not know why this dependency is there. Obviously when Ubuntu
shipped Unity by default, it was the only desktop present, and Unity
machines did not have GNOME Shell installed. Why it's there now is an
annoying enigma.

-- 
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