Installing the upstream 3.1.4 package did not solve the bug for me, but for the record, here's the direct link to the bug:
http://www.virtualbox.org/ticket/6100 Booting the image with acpi=off (by pressing F6 and checking the option in the Ubuntu bootloader) as suggested there as a workaround did allow me to boot the image with virtualbox-ose 3.1.2-dfsg-1ubuntu1 (the Lucid one). ** Bug watch added: Virtualbox Trac #6100 http://www.virtualbox.org/ticket/6100 -- virtualbox: Lucid alpha2 does not boot https://bugs.launchpad.net/bugs/508777 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