Exit install with no root password

["Adam F. Rogoyski" <rogoyski@math.utexas.edu>]

   Hi.  In a i386 install with the daily 100 meg sarge cd
(sarge-i386-netinst.iso      11-Jan-2004 15:18   107M)
I was able to hit Cancel when it prompts for the root password and proceed
to Finish Setup, dropping me at the login screen.  Now I couldn't log on
because there was no root password set.  You might want to put some kind
of warning there, or let the root user log on with a null password until
one is yet.

   Adam Rogoyski