Thanks for the tip, but no not quite. After I move install_hfa to /var/HFA and type ./install_hfa, this is what I get:
**********************************************
Welcome to HFA_R55_17 for NG AI installation.
If you choose to continue, the installation
will perform CPSTOP.
Please make sure there is enough disk space for the HFA installation.
**********************************************
Do you want to continue [Y/n]?
y
Installing SVN Foundation HFA_R55_17 for NG AI ...
/bin/mkdir: cannot create directory `files/temp': No such file or directory
/bin/cp: cannot stat `files/cpshared_HOTFIX_HFA_R55_17.tgz': No such file or directory
./install_hfa: cd: files/temp: No such file or directory
gunzip: cpshared_HOTFIX_HFA_R55_17.tgz: No such file or directory
/bin/tar: cpshared_HOTFIX_HFA_R55_17.tar: Cannot open: No such file or directory
/bin/tar: Error is not recoverable: exiting now
./install_hfa: ./cpshared_HOTFIX_HFA_R55_17_541670004_1: No such file or directory
Installation of SVN Foundation HFA_R55_17 for NG AI failed.
/bin/rm: cannot remove `files/temp': No such file or directory
Any thoughts ?