Next, let's look at some basic network configurations so that we can communicate with the outside world. I am assuming that there is an Ethernet interface,
eth0, and that we only need a simple IP v4 configuration.
These examples use the network utilities that are part of BusyBox, and are sufficient for a simple use case, using the
old-but-reliable ifup and
ifdown programs. You can read the man pages on both for more details. The main network configuration is stored in
/etc/network/interfaces. You will need to create these directories in the staging directory:
etc/network etc/network/if-pre-up.d etc/network/if-up.d var/run
For a static IP address,
etc/network/interfaces would look like this:
auto lo iface lo inet loopback auto ...