initramfs-tools suspend-to-disk changes (Stretch)
System :: Base
initramfs-tools 0.129 introduces changes:
* Some systems that do not support suspend-to-disk (hibernation) will require a configuration change to explicitly disable this. From version 0.128, the boot code waits for a suspend/resume device to appear, rather than checking just once. If the configured or automatically selected resume device is not available at boot time, this results in a roughly 30 second delay.
So I think we should use RESUME=none and deploy it in /etc/initramfs-tools/conf.d/resume on all servers to avoid this useless delay.