If you plan to install software on a remote installation services (RIS) server, you must perform a custom installation because you need more than just the mandatory software subsets on a RIS server. Instead of creating a link from /var to a mount point, you may want to create a separate file system for /var because the file systems needed for RIS areas are located in the /var/adm/ris directory. Refer to Sharing Software on a Local Area Network for information about setting up RIS servers.