bluetooth keyboard/mouse disconnected during upgrade, cannot complete upgrade, USB keyboard/mouse dont work either

[scar]

i am updating my ubuntu 10.04 desktop to 12.04, and my bluetooth
keyboard/mouse have gotten disconnected during the process somewhere.
the upgrade is paused right now while it is waiting for me to continue
through a dialog box asking to replace a configuration file.  i tried
plugging a USB mouse and keyboard in but they aren't letting me move the
mouse or type either.  i can still SSH into the box and check dmesg and
the system is recognizing the USB keyboard/mouse but for some reason i
can't control the mouse pointer or type with them.  i tried restarting
the bluetooth service too but that didn't help.  so the system is stuck
in the middle of the upgrade and i'm not sure what to do!