I was making a change via SSH connection on 00-network-manager-all.yaml file on an Ubuntu Server 18.04 which is hosted on a three disk RAID0. While making the change and executing the command sudo netplan apply the console crashed and no longer reacted. I waited a while in case it needed time to make the change and, after a long time, I closed it because it was still not reacting. Before closing it I got the message that I had processes running.
When I tried to connect to the server, it gave me this error: connect to host server-name port 22: Connection timed out. I went to the server, restarted it and connected a screen and it gave me the following error:
Something that seemed strange to me was that when I opened the 00-network-manager-all.yaml file to modify it, it was totally empty, but I thought this wasn't a problem. I've made the modifications and executed the command, as mentioned before. When I noticed the error, I tried to enter the netplan folder to restore the file with the backup, and found out that the netplan folder no longer existed.
I don't know if it has to do with the fact that I'm in a Shell and that's why it doesn't appear. I created the netplan folder and the 00-network-manager-all.yaml file to see if this could solve the problem and restarted the server hoping it would work but it didn’t.
I did a lot of research but I didn’t find any forum mentioning something similar.
