Keyboard problems in Feisty

[Andrew Johnson]

After upgrading one of my computers from Edgy to Feisty using the
alternate CD this week I discovered that my PS/2 keyboard no longer
worked.  Watching the boot process while trying recovery mode, the
keyboard lights (num lock, etc) wink out around the time initramfs
starts loading the floppy drivers.

I was able to plug in a USB keyboard and log in, but the PS/2 is
completely dead.  Has anybody seen any issues like this before?