Hello
Today I wanted to test something on a ubuntu server . So I start a virtualbox with it. However when it started there was no network. But only a error with 60 seconds to wait.
After long wait, the ubuntu server have started, but no network available . I have to mention that I use bridged adapter on virtual server.
The solution is to empty one file.
I did make a backup first with
cp /etc/udev/rules.d/70-persistent-net.rules /root
After this I have empty the file
echo ""> /etc/udev/rules.d/70-persistent-net.rules
And rebooted the server.
After this all was ok.