Found it. After installing grub-efi-amd64, everything works without any error. Thanks :-) *no more bug* -- > The file mentioned is there as a file and not as a link, as your >$ls -al< > shows me. > How to rectreate that link? :-) > -- > > On Sat, 09 Feb 2019 15:06:04 +0100 "J. Schreck" > > <schreck.jul...@uranus.uni-freiburg.de> wrote: > > > Setting up desktop-base (10.0.0) ... > > > update-alternatives: error: cannot stat file > > > '/etc/alternatives/desktop-background': Invalid argument > > > dpkg: error processing package desktop-base (--configure): > > > installed desktop-base package post-installation script subprocess > > > returned error exit status 2 > > > Errors were encountered while processing: > > > desktop-base > > > > Is there any file as /etc/alternatives/desktop-background ? > > > > On my laptop > > > $ LC_ALL=C ls -al /etc/alternatives/desktop-background > > lrwxrwxrwx 1 root root 76 Oct 15 09:56 /etc/alternatives/desktop-background > > -> > > /usr/share/desktop-base/active-theme/wallpaper/contents/images/1920x1080.svg
https://omnibus.uni-freiburg.de/~sj126
