HI, I had solved the problem by the following command line :
sudo apt-get update -> when it was done a message appears, informing me an error exist, please type : sudo apt-get -f install when was done : sudo apt-get upgrade no more problem with the update alert nor the update with "add/remove" program resolved for me -- PC freez in upgrade, cannot remove the package openjdk-6-jre-lib 6b14-1.4.1-0ubuntu10 (failed to install/upgrade/remove) https://bugs.launchpad.net/bugs/398091 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