Error While Installing

[Vaibhav]

Hi My name is Vaibhav.I am from India. I am trying to  install freeBsd
6 on my second 80gb segate harddisk.It gives me fellowing error
"Unable to make device node for /dev/X in /dev! The creation of
filesystems will be aborted."

Ans only option left is exit installation.
I have refered to online bur/issue report
http://www.freebsd.org/cgi/query-pr.cgi?pr=39604
have similar issue addressed.But in my case there is no partion magic
nor any hidden patition involed.
Wating for your reply,

Regards,
Vaibhav