Netbackup 18.104.22.168 in need of more space in /tmp
I have an NetBackup 7.5 and trying to upgrade to 22.214.171.124 (HPUX ia64). During the installation it says me I have about 1.2 GB of free space in /tmp and NetBackup needs about 2.4 GB in /tmp.
The problem is, my /tmp is a fixed size, about 1.4GB in total. Can I redirect where NetBackup can extract the files to another directory with more disk space?