I can confirm that it reboots without any changes in Lucid (temporarily I have downgraded the machine to Lucid, as regular reboots are important for this machine)
I tried reboot=bios and reboot=acpi, and it had no effect under Natty - never tried reboot=pci (didn't even know that option existed) -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/768039 Title: Optiplex 990 fails to reboot/shutdown -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
