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

Ralf Mardorf silver.bullet at
Sun Aug 26 07:22:11 UTC 2018

On Sun, 2018-08-26 at 08:20 +0200, grasso wrote:
> My question is now:
> Is it a good check to try running "sudo apt-get upgrade" to see if
> update will then be performed, because I did not yet tried.

Yesno. Don't follow the link you posted.

First run

  sudo apt upgrade

(alternatively you could run

  sudo apt-get update)

this will sync the package index files, not the packages.

Then run

  sudo apt full-upgrade

('sudo apt-get upgrade' isn't good, an alternative would be

  sudo apt-get dist-upgrade)

If there should be upgrades, they will be shown. You need to confirm if
you want to continue and do the upgrade or if you don't want to upgrade.



if you want to understand the difference between 'upgrade' and 'full-
upgrade' or 'dist-upgrade'.

By default there is one important difference between the "old"
'sudo apt-get dist-upgrade' and the "new" 'sudo apt full-upgrade'.

By default 'apt-get' caches the packages in /var/cache/apt/archives/,
'apt' doesn't.

If you want to use the "new" apt, but cache the packages, too, run

  sudo apt full-upgrade -o APT::Keep-Downloaded-Packages=1

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