Hello
why can’t I update the NoMachine server on a remote desktop anymore?
It has never been possible to run the software updates in a virtual desktop session. Software updates need to download new files and run the procedure to activate them. Part of this procedure consists in shutting down the nxserver, applying changes, restarting the nxserver. This could not work in a virtual desktop, when shutting down the server the session would be closed and the procedure would break.
On a headless machine the same conditions apply. With no X server running or detected, NoMachine start it’s own virtual display. Updating the nxserver, it must shut down and therefore the session is interrupted.
You can download and update NoMachine via command line with those commands:
wget https://www.nomachine.com/free/linux/64/rpm -O nomachine_7.10.1_1_x86_64.rpm
sudo rpm -U nomachine_7.10.1_1_x86_64.rpm