having reasonable sucess with Debian/Squeeze LTSP using the efikamx with the armel architecture, i figured i'd try with the armhf port on debian-ports.org.
the trickier part was that qemu-user-static didn't support armhf, so i had to figure out a way to bootstrap it natively. being who i am and what i do, the easiest way seemed to be using the armel LTSP environment...
so i booted the efikamx to a Debian LTSP armel environment, configured a writeable NFS mount on the server and mounted on the efikamx, installed the ltsp-server packages in the chroot, hacked up the ltsp-build-client plugin to use multistrap instead of debootstrap (since with debian-ports i need to pull from multiple repositories)... other than that, the build went fairly smoothly.
i just used a kernel from
http://www.powerdeveloper.org/platforms/efikamx/kernel, and with an initramfs from the armel environment, and it booted more or less successfully.
trying with an initramfs built from the armhf chroot segfaulted with klibc's ipconfig... hrm.
i just now found out those kernels don't really support armhf, so apparently, i'll have to build (or find) and armhf kernel to get any further with this...