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

[Robert Heller]

At Sun, 14 Feb 2021 17:05:38 +0100 "Ubuntu user technical support, not for general discussions" <ubuntu-users at lists.ubuntu.com> wrote:

> 
> Content-Type: text/plain
> 
> 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 had no problem upgrading from 16.04 *server* to 18.04 -- I wanted to install
18.04 on my old box running CentOS 6.10, but it had raid (2 arrays) and lvm,
which 18.04 desktop could not handle and the 18.04 server installer barfed,
not being able to deal properly with the raid arrays (two of them). 16.04 was
able to deal properly (more or less) with my CentOS 6.10 system it is two raid
arrays.

> 
> 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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