I want to upgrade, but "apt dist-upgrade" wants to remove lots of
packages (including the X server!). So, let's try manually, with
qtbase5-dev:
cventin:~> apt install -s qtbase5-dev
[...]
The following packages will be REMOVED:
libegl1-glvnd-nvidia libegl1-glvnd-nvidia:i386 libegl1-mesa-dev libgtk-3-dev
[...]
It wants to remove libgtk-3-dev, which is not OK, so:
cventin:~> apt install -s qtbase5-dev libgtk-3-dev
[...]
The following packages have unmet dependencies:
libgtk-3-dev : Depends: libgtk-3-0 (= 3.22.21-1) but it is not going to be installed
Depends: gir1.2-gtk-3.0 (= 3.22.21-1) but it is not going to be installed
Depends: libegl1-mesa-dev but it is not going to be installed
E: Unable to correct problems, you have held broken packages.
But I don't see what could be broken. Indeed, I can add the
dependencies one after the one, which can lead to the upgrade:
cventin:~> apt install -s qtbase5-dev libgtk-3-dev libegl1-mesa-dev
[...]
The following packages have unmet dependencies:
libegl1-mesa-dev : Depends: libglvnd-dev but it is not going to be installed
qtbase5-dev : Depends: libgl1-mesa-dev but it is not going to be installed or
libgl-dev
Depends: libglu1-mesa-dev but it is not going to be installed or
libglu-dev
E: Unable to correct problems, you have held broken packages.
cventin:~> apt install -s qtbase5-dev libgtk-3-dev libegl1-mesa-dev libglvnd-dev
The following packages have unmet dependencies:
libglvnd-dev : Depends: libopengl0 (= 0.2.999+git20170802-4)
E: Unable to correct problems, you have held broken packages.
cventin:~> apt install -s qtbase5-dev libgtk-3-dev libegl1-mesa-dev libglvnd-dev libopengl0
[...]
The following packages will be REMOVED:
bijiben caribou caribou-antler empathy evolution evolution-plugin-bogofilter
evolution-plugin-pstimport evolution-plugins gir1.2-clutter-1.0
gir1.2-cogl-1.0 gir1.2-coglpango-1.0 gnome-getting-started-docs
gnome-user-guide gstreamer1.0-clutter-3.0 gthumb libchamplain-0.12-0
libchamplain-gtk-0.12-0 libcheese-gtk25 libcheese8 libclutter-1.0-0
libclutter-gst-3.0-0 libclutter-gtk-1.0-0 libcogl-pango20 libcogl-path20
libcogl20 libedataserverui-1.2-1 libegl1-glvnd-nvidia
libegl1-glvnd-nvidia:i386 libevolution libgl1-glvnd-nvidia-glx
libgl1-glvnd-nvidia-glx:i386 libgl1-mesa-glx libgl1-mesa-glx:i386
libgles2-glvnd-nvidia libgles2-glvnd-nvidia:i386 libglx0-glvnd-nvidia
libglx0-glvnd-nvidia:i386 libopengl0-glvnd-nvidia libtxc-dxtn-s2tc0
libwebkit2gtk-4.0-37 libwebkit2gtk-4.0-37-gtk2 libyelp0 metacity yelp zenity
[...]
At this point, this is still not OK, because other packages are
removed. However, apt is again incorrect here, as I can force
their installation so that they are kept:
cventin:~> apt install -s qtbase5-dev libgtk-3-dev libegl1-mesa-dev libglvnd-dev libopengl0 bijiben caribou caribou-antler empathy evolution evolution-plugin-bogofilter evolution-plugin-pstimport evolution-plugins gir1.2-clutter-1.0 gir1.2-cogl-1.0 gir1.2-coglpango-1.0 gnome-getting-started-docs gnome-user-guide gstreamer1.0-clutter-3.0 gthumb metacity yelp zenity wine32:i386
[...]
The following packages will be REMOVED:
libegl1-glvnd-nvidia libegl1-glvnd-nvidia:i386 libgl1-glvnd-nvidia-glx
libgl1-glvnd-nvidia-glx:i386 libgl1-mesa-glx:i386 libgles2-glvnd-nvidia
libgles2-glvnd-nvidia:i386 libglx0-glvnd-nvidia libglx0-glvnd-nvidia:i386
libopengl0-glvnd-nvidia libtxc-dxtn-s2tc0 libwebkit2gtk-4.0-37-gtk2
[...]
Now, only libraries are removed (all of them have been installed
automatically via dependencies), which is OK.
They are actually 2 issues:
1. The fact that this wasn't found with
"apt install -s qtbase5-dev libgtk-3-dev".
2. The fact that with "apt install -s qtbase5-dev libgtk-3-dev
libegl1-mesa-dev libglvnd-dev libopengl0", apt wants to remove
too much.
I've attached in an archive:
/var/lib/dpkg/status
/var/lib/apt/extended_states