“Waiting for network configuration” upon boot

Question

When I boot, I get the error message waiting for network configuration, then waiting an additional 60 seconds for network configuration.

I had edited /etc/network/interfaces file before the above message, so as to surf through a friend's laptop using Ethernet cable; then, after restoring the file, I still get the same message. I have searched in the internet but I didn't find anything helpful.

The content of /etc/network/interfaces is:

auto lo
iface lo inet loopback

What is wrong?

Answer 1

Your configurations seem fine. Check if you saved the file after editing, if not

sudo nano /etc/network/interfaces if you are using nano

sudo vim /etc/network/interfaces if you use vim the remove whatever is there and replace with the following auto lo iface lo inet loopback

reboot now, and you should be ok :)

Answer 2

You are missing eth0 section, try adding the following

auto eth0
iface eth0 inet dhcp

Then reboot.