CLI upgrade of OPNsense

Make possible for root user to login first (under System > Settigns > Administration) 
 Option A) 
 
 Option B) 
 
 As root, create a new sudoers file 
 vi /usr/local/etc/sudoers.d/anton
 
 privileges 
 anton ALL=(ALL:ALL) NOPASSWD: ALL
 
 Disable root direct login 
 
 Elevate priveleges 
 sudo su
 
 Install tmux 
 pkg install tmux-3.8
 
 
 Exit to normal user 
 exit
 
 Verify that there is no attachable session and create first tmux session 
 tmux a
tmux
 
 
 Elevate privileges 
 sudo su
 
 
 Update process itself: 
 pkg update
 
 
 pkg upgrade
 
 
 opnsense-update