* Add initrd=main kernel argument for UEFI
* Switch to using the coreos.live.rootfs_url kernel argument
instead of passing the rootfs as an appended initrd
* Remove coreos.inst.image_url kernel argument since coreos-installer
now defaults to installing from the embedded live system
* Remove rd.neednet=1 and dhcp=ip kernel args that aren't needed
* Remove serial console kernel args by default (these can be
added via var.kernel_args if needed)
Rel:
* https://github.com/poseidon/matchbox/pull/972 (thank you @bgilbert)
* https://github.com/poseidon/matchbox/pull/978
* Flatcar Linux has not published an Edge channel image since
April 2020 and recently removed mention of the channel from
their documentation https://github.com/kinvolk/Flatcar/pull/345
* Users of Flatcar Linux Edge should move to the stable, beta, or
alpha channel, barring any alternate advice from upstream Flatcar
Linux
* CoreOS Container Linux was deprecated in v1.18.3
* Continue transitioning docs and modules from supporting
both CoreOS and Flatcar "variants" of Container Linux to
now supporting Flatcar Linux and equivalents
Action Required: Update the Flatcar Linux modules `source`
to replace `s/container-linux/flatcar-linux`. See docs for
examples
