For what it is worth I also see this bug often. I am using a local Ubuntu mirror that syncs once per day in the early morning. I think the difference between it working and not working is how long it has been sitting there waiting for user input. It is Monday morning and everyone in the office with me running Ubuntu has had this problem. The Update Manager has probably been sitting there since Saturday morning.
When the Install Updates button does not work clicking the Check button fixes it. If you click the Check button you will be prompted for your password. After the package list is updated the Install Updates button will install the updates. -- Update Manager, "install" button does nothing when u-m was opened by itself https://bugs.launchpad.net/bugs/414181 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
