With RC-2 and using a USB mouse, the installer goes all the way though
and then at the end hangs while unmounting filesystems. The last
file system printed is "/proc/bus/usb". Of course, pressing RESET works
and it reboots just fine ... however, "/" was not unmounted at all, so
it must fsck.
I see this on my Sony PCG-F540 laptop.
*** This bug has been marked as a duplicate of 30696 ***