/usr: create/symlink failed, no inodes free

[Gregory Bond]

Try a "df -i" and you'll see you are out of inodes.  Out of inodes but still
with free space means you have too many small files on this filesystem.  That 
is very surprising as usually newfs massively over-supplies inodes.  Did you 
mess with newfs parameters when you did the install?  

The only solutions are move/delete some files or backup, newfs (with different
parameters) and restore the partition.

Greg.