Menu System Tools/Software Updater not working after, Lubuntu upgrade from 16.04 to 18.04

[Ralf Mardorf]

On Sun, 2018-08-26 at 09:17 +0100, Colin Law wrote:
> I am surprised at you suggesting full-upgrade, it is safer to use apt
> upgrade (which is not the same as apt-get upgrade).  full-upgrade will
> remove packages if necessary whereas upgrade installs/upgrades as
> necessary but will not remove any existing packages. It instead tells
> you that some packages will be removed so that you can use
> full-upgrade if you want.

full-upgrade shows what it wants to do. _I read this output_ and then
_decide if I want to continue or not_, so it's not less or more safe.

Btw. I never needed to cancel the upgrade, when it wanted to remove
packages, so IMO for those not reading what the upgrade wants to do,
removing packages to avoid a partial upgrade is safer, than not removing
packages and finishing with a partial upgraded system.

> So my standard procedure is
> sudo apt update && sudo apt upgrade
> and then in the very rare situation where it says it is necessary to
> remove packages I can consider whether I want to do that and run
> sudo apt full-upgrade if necessary.

So you read the output, too. The situations are not that rare, but if
you stay with official repositories there is usually no need to keep the
packages that a full-upgrade wants to remove, so removing them makes
sense and will ensure a complete upgraded system.