For one, ensure a unique machine-id. Broadly should be done, but critical for bonds to have unique mac
addressses in event of booting a captured image.
Fix ubuntu slow boot due to waiting forever for a network config. Have the transient network config bake into netplan for
a first pass before confignet comes along to do full configuration.
Clean up spurious error messages about grep true: and device busy on mounting overlay.
TIOCCONS was called for users that did not want to use serial. This
makes the serial console delayeed when automatic, but avoids video
users from being confused.
Jarrod Johnson