I tried both
aptitude -y safe-upgrade and
apt-get upgrade -f but in both cases, I get:
Reading package lists... Done Building dependency tree Reading state information... Done The following packages have been kept back: ... (long list) 0 packages upgraded, 0 newly installed, 0 to remove and 903 not upgraded.
I guess this resulted from several hacks where I tried to update my system (trying to work around this problem).
My question now: Why are they kept back? What can I do to install them?
On a similar question, I got the suggestion to just use
apt-get dist-upgrade instead. However, that fails at the moment for me because of:
E: Could not perform immediate configuration on 'util-linux'.Please see man 5 apt.conf under APT::Immediate-Configure for details. (2)
This is this problem.