Zero-touch deployment with autoinstall

The Ubuntu Installer contains a safeguard, intended to prevent USB Flash Drives with an autoinstall.yaml file from wiping out the wrong system.

Before the Ubuntu Installer actually makes changes to the target system, a prompt is shown.

start: subiquity/Meta/status_GET
Confirmation is required to continue.
Add 'autoinstall' to your kernel command line to avoid this


Continue with autoinstall? (yes|no)

To bypass this prompt, arrange for the argument autoinstall to be present on the kernel command line.