I can confirm that this error occurred when I upgraded my laptop from 8.10 to 9.04 (final release) using the alternate install cd to perform an offline upgrade.
In my case the upgrade continued without aborting, the error simply stated that the ca-certificates package may not work correctly. Then it prompted again to say the the package could not be install and that that particlar install would abort. Then finally after the upgrade was complete it said that the upgrade had completed but there were errors. As Shane suggested I executed a 'sudo apt-get autoremove' and manually rebooted the machine. Seems ok to me now. P.S. Love how fast Jaunty gets going. -- package ca-certificates 20080809 failed to install/upgrade: https://bugs.launchpad.net/bugs/331153 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