@miq, Marktrix:
what is the output of: $ /usr/lib/update-notifier/apt-check and the content of /etc/apt/sources.list ? $ ls -l /var/lib/apt/periodic/
@miq, Marktrix:
what is the output of: update- notifier/ apt-check sources. list ? apt/periodic/
$ /usr/lib/
and the content of /etc/apt/
$ ls -l /var/lib/