I have solve this problem, modifying the /etc/init.d/conntrack-tools. It was referring in the stop process to a non-existent pid file which caused the freezing of the stop process.
Regards David -- package conntrackd None [modified: /var/lib/dpkg/info/conntrackd.list] failed to install/upgrade: trying to overwrite `/usr/share/man/man8/conntrackd.8.gz', which is also in package conntrack-tools https://bugs.launchpad.net/bugs/313419 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs