Ubuntu
netplan.io package

  1. Bug #1769682
  2. Comment #29

Comment 29 for bug 1769682

Revision history for this message
Mathieu Trudel-Lapierre (cyphermox) wrote :

Verification done with netplan.io 0.40.1~18.04.1:

I have verified that when using ip=dhcp / ip6=dhcp on the kernel cmdline to boot to a remote filesystem; initramfs's scripts correctly write "critical: true" in /run/netplan/<interface>.yaml, and that config is correctly interpreted by netplan as being entirely valid, and generates a configuration for systemd-networkd that avoids releasing IP from DHCP on 'netplan apply'.

In such an environment, running 'netplan apply' correctly leaves IP addresses coming from DHCP untouched. "CriticalConnection=true" is present in the generated config for networkd.