Trouble building a working undionly.kpxe

[mrreload]

I know, old thread but same issue here. Building ipxe.pxe instead and either using rom-o-matic site or compiling from source no OS will boot.
Booting Virtualbox from ipxe.iso for testing.

The embedded script is just this:
#!ipxe
dhcp
chain http://192.168.1.24/hoag.ipxe

The menu will load (with backgroung png) but with console enabled I cannot boot.
In Fact, when I use rom-o-matic to generate the iso with console enabled, it will crash virtualbox. When I make it from source, it will boot from it but not past a kernel panic.
"Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(0,255)"

sample item that works with console disabled but not enabled:

:Clonezilla
echo Starting CloneZilla with default options
kernel ${http-serv}/images/clonezilla/live/vmlinuz root=/dev/nfs boot=live netboot=nfs nfsroot=${nfs-ip}:${nfs-uri}/images/clonezilla locale=en_US.UTF-8 ip=dhcp ro
initrd ${http-serv}/images/clonezilla/live/initrd.img
boot || goto start
goto start