Once the upgrade completed and I rebooted, the package manager indicated that there was one package to upgrade - squeak-vm. I did so and it upgraded fine. It appears, therefore, that any defect is localized to the upgrading between 8.10 and 9.04, otherwise package update later works just fine. Might be worth investigating, but probably not a high priority item since there is a clear workaround - update and install after system upgrade.
-- package squeak-vm 1:3.9.8-3ubuntu1 failed to install/upgrade: https://bugs.launchpad.net/bugs/376324 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