[SOLVED]PC suddenly stopped booting after reboot command

[SOLVED]
Mageia 9.
My server pc suddenly today stopped booting into graphical desktop. After reboot, the spash sceen is shown a few minutes but after that goes to a terminal window and shows "welcome to emergency mode". A few options are given there but I can login as root. However, the network connection does not start. "journalctl -xb" shows >1600 lines which does not give me any clue to what is broken (unfortunately I'm not an expert). However it shows a some error lines marked with red. I believe the info is there, but I don't know even how to export what's displayed to some external media.
Please advice what steps to take to, if possible, repair the system. I spent many years on this server.
Per
Mageia 9.
My server pc suddenly today stopped booting into graphical desktop. After reboot, the spash sceen is shown a few minutes but after that goes to a terminal window and shows "welcome to emergency mode". A few options are given there but I can login as root. However, the network connection does not start. "journalctl -xb" shows >1600 lines which does not give me any clue to what is broken (unfortunately I'm not an expert). However it shows a some error lines marked with red. I believe the info is there, but I don't know even how to export what's displayed to some external media.
Please advice what steps to take to, if possible, repair the system. I spent many years on this server.
Per