I don't think there is anything to change with swap which should be located elsewhere assuming you used the default layout.
To be sure, post the output of this command:
Code:
# prtvtoc /dev/dsk/c1t1d0s2
However, there is an issue with these steps. The growfs command cannot be used with the root partition according to its documentation. That means this won't work even in single user mode.
One possible workaround would be to boot on an installation media and run all of that from a shell there.
In any case, you should really make a reliable backup of your system before attempting this.