Update: I'm not sure at what version this changed, but now the system requires acpi=force to shut down as expected even on the 386 kernels.
I Just installed the latest kernel update (it says Sept. 8 in dmesg)... On this old 500 MHz machine I wondered if I was seeing any benefit from the 686 kernel anyway. (It's not dramatically faster.) So now I'm back to the 386 kernel and still having to tweak grub with every kernel update. -- System doesn't power down under Dapper 686 https://launchpad.net/bugs/39499 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs