The Solaris 9 operating environment must be installed (with the End-user cluster at minimum), and booted to multi-user level (run level 3).
You must be superuser.
There must be at least 62 Mbytes of available disk space in the partition where SunVTS will reside. The /opt directory is the default installation location.
Refer to Appendix B, Frequently Asked Questions for information about which revisions of SunVTS are supported on different Solaris operating environment releases.