Hello Jeremy,
Thanks for your query.
Please have a look on HP VAN SDN Controller Installation Guide[page 7] step 3 -
“Install the HP VAN SDN Controller from the directory in which it is stored, and ensure that you have root access on the Ubuntu system (sudo):”
For e.g. If hp-sdn-ctl_2.0.04253_amd64.deb file is in /home/user/Downloads directory ,please run the command from /home/user/Downloads directory as below
/home/user/Downloads$ sudo dpkg -i hp-sdn-ctl_2.0.04253_amd64.deb
Also make sure you have successfully executed steps 1 and 2.
Please let us know if you still face the problem.
Thanks,
HP SDN Team