I can't reproduce the original problem described in this bug on precise. However I have tested that you can boot 64bit VMs on a 32bit host system with the package from precise-proposed.
@SRU team: If this is not enough, please let me know and I'll upload a new SRU that contains only the fix for bug #1081307 ** Tags removed: verification-needed ** Tags added: verification-done -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1071344 Title: 12.04's current virtualbox 4.1.12 crashes (reboots) 32-bit host on running 64-bit guests, please upgrade to 4.1.18+ To manage notifications about this bug go to: https://bugs.launchpad.net/virtualbox/+bug/1071344/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs