root password

[Mike S <michael_six@users.sourceforge.net>]

   Since the debian installer never finished, stopped at the kernel, my 
root password was never set up, i managed to manually finish it with a 
ubuntu livecd and chrooting to the debian partition, make a new user and 
add sudo, and set it up like ubuntu with my user a member of the admin 
group, and able to use sudo, but is this a security risk, and if so how 
do I change the root password, or disable the root account, if it's enabled

Thanks in advance,

--Mike S