Open Terminal as root
From Amahi Wiki
Sometimes, you'll be asked to open a Terminal window, and become root.
To do that, on the HDA itself, go in the Applications menu, and select System > Terminal.
To do that from a remote computer, SSH into your HDA.
Once the Terminal window is open, type the following command:
su -
You'll be asked for the root password:
[gb@hda ~]$ su -
Password:
You now have a Terminal open, and you're logged as root:
[gb@hda ~]$ su -
Password:
[root@hda ~]#