It seems that there are also cases where update-manager freezes when libgtk2-perl is not installed. I can confirm this has just happened during the grub-pc upgrade on 14.04.2
This process got stuck:
"/usr/bin/perl -w /usr/share/debconf/frontend /var/lib/dpkg/info/grub-pc.postinst configure 2.02~beta2-9ubuntu1.3"
Running "apt-get install -f" from terminal after killing the frozen process fixes the issue.
Related bug: https://bugs.launchpad.net/ubuntu/+source/ubuntu-release-upgrader/+bug/1457353
I would think that libgtk2-perl should also be a dependency of update-manager?
It seems that there are also cases where update-manager freezes when libgtk2-perl is not installed. I can confirm this has just happened during the grub-pc upgrade on 14.04.2
This process got stuck:
"/usr/bin/perl -w /usr/share/ debconf/ frontend /var/lib/ dpkg/info/ grub-pc. postinst configure 2.02~beta2- 9ubuntu1. 3"
Running "apt-get install -f" from terminal after killing the frozen process fixes the issue.
Related bug: https:/ /bugs.launchpad .net/ubuntu/ +source/ ubuntu- release- upgrader/ +bug/1457353
I would think that libgtk2-perl should also be a dependency of update-manager?