Comment 11 for bug 1914812

Oh I forgot about the first workaround I thought of, which has the advantage of being centos specific and not breaking ubuntu deployments. Put something like this https://paste.ubuntu.com/p/HshCpxXCzD/ in your curtin_userdata_centos file. (This doesn't do the boot entry reordering curtin does by default -- that could be added too if needed I guess).