no, you not need "sudo -s" if you have use HiveOS the user "user" have a root privelegs.
You need a configure ssh access to you HiveOS after fresh install. Do following:
configure BIOS of your rig to use extern GPU as primary video output
put USB stick with fresh HIveOS installation in your mining rig.
connect hdmi monitor to GPU which is connected to main PCE slot
switch on rig power
after HiveOS loaded do following commands:
hivepasswd somepassword
diskexpand
selfupgrade
wget http://www.awesomeminer.com/download/setup/awesomeminer-remoteagent.tar.xz
tar xvJf awesomeminer-remoteagent.tar.xz
cd awesomeminer-remoteagent
sudo ./service-install.sh
ldconfig /hive/lib/

now you can access your rig linux console from remote computer over: ssh user@yourRigIP

you can install a new NVIDIA driver. (preffered) This upgrade you must do over remote console!
Login to rig over ssh and do this commands:
logs-on
reboot

after rebooting:
cd awesomeminer-remoteagent
*stop*
killall xinit
nvidia-driver-update

after driver installation complete (need some time) do this commands:

logs-off
reboot

now you can use HiveOS+AM together