The steps to use the HCTS ISO file for installing SUNWhcts package are as follows. Note that platformD represents the platform of your system (for example, SPARC or X64) and versionN represents the HCTS version number.
# su
# mount -F hsfs <full_path_to>/hcts-platformD-versionN.iso /mnt
or
# mount -F hsfs -o ro `lofiadm -a <full_path_to>/hcts-platformD-versionN.iso` /mnt
# pkg set-publisher -g file:///mnt/repo hcts
# pkg install pkg://hcts/diagnostic/SUNWhcts
# umount -f /mnt # /opt/SUNWhcts/bin/reconfigure