Supported platforms

FreeBSD 2.2.x Intel
FreeBSD 3.0 Intel
Linux 2.0.35 Intel
Sparc/Solaris 2.5.1
Sparc/Solaris 2.6

Other platforms (field reports)
BSDI BSD/OS 3.1
BSDI BSD/OS 4.0
Digital UNIX 4.0B