Thanks for providing the logs. As indicated by the traceback update- manager seems to have a problem processing the wvdial package
** Changed in: update-manager (Ubuntu) Status: Incomplete => Triaged -- package update-manager 1:0.87.16 failed to install/upgrade: ErrorMessage: SystemError in cache.commit(): E:Sub-process /usr/bin/dpkg returned an error code (1) https://bugs.launchpad.net/bugs/217368 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