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Help with dracut install CentOS 8

I am trying to specify a static IP on the new dracut format. I was using
this:
<a href="http://man7.org/linux/man-pages/man7/dracut.cmdline.7.html" title="http://man7.org/linux/man-pages/man7/dracut.cmdline.7.html">http://man7.org/linux/man-pages/man7/dracut.cmdline.7.html</a>

So my grub entry consists
menuentry "Install CentOS 8" {
linux /boot/vmlinuz noverifyssl ks=https://something
ip=192.168.1.3::192.168.1.1:255.255.255.0::eth0:on:192.168.1.1
biosdevname=0 net.ifnames=0 ksdevice=eth0 inst.sshd sshd=1
initrd /boot/initrd.img
}

This seems OK to me. But rebooting to start the install for CentOS 8 it
just stops and says
"system halted". the lines above that have no errors.
.3 is the IP I want to use
.1 is the GW and the Nameserver in this case.

Thanks,

Jerry