portupgrade install

[Brandon Hagedorn]

When doing a make install in the ports, I get this error 

/var: create/symlink failed, no inodes free
mkdir: /var/db/pkg/ruby-rdoc-0.0.0.b2: No space left on device
*** Error code 1

Stop in /usr/ports/textproc/ruby-rdoc.
*** Error code 1

Stop in /usr/ports/databases/ruby-bdb1.
*** Error code 1

%df -H
Filesystem    Size   Used  Avail Capacity  Mounted on
/dev/ad0s1a   528M    43M   443M     9%    /
/dev/ad0s1f   132M    53M    68M    44%    /tmp
/dev/ad0s1g   6.7G   5.4G   813M    87%    /usr
/dev/ad0s1e  1057M   721M   251M    74%    /var
procfs        4.1K   4.1K     0B   100%    /proc

FreeBSD version: 4.6.2-RELEASE

I don't know why it says no space left on device because I have plenty
there.  One of my friends said that there are too many files open.
Could this be true.  If so how do I close them so I can install
portupgrade? Any other suggestions?

--Brandon