Yes, and if you hit the resolve button when editing the host on Provisioning Templates, Templates resolve correctly.

ok, so this most likely an issue with the template it self, can you paste it somewhere?

I think this is the one that came as default,

default=0
timeout=10
title Solaris_10 Jumpstart
        kernel <%= multiboot %> kernel/unix - install dhcp nowin -B install_config=<%= jumpstart_path %>,sysid_config=<%= jumpstart_path %>/sysidcfg/sysidcfg_primary,install_media=<%= install_path %>,install_boot=<%= install_path %>/boot
        module <%= miniroot %>
title Solaris 10
        findroot (rootfs0,0,a)
        kernel$ /platform/i86pc/multiboot
        module /platform/i86pc/boot_archive

if you remove the build checkbox, would it allow you to save the host?

then, if it does, when you click on the host (in the list) under the templates tab, can you try rendering the pxe template?
I'm looking for a full trace that could let us know where the error is coming from

Here it's the output from, http://foreman:3000/unattended/provision?spoof=IP

install_type initial_install
partitioning explicit
filesys c0t0d0s0 7000 /
filesys c0t0d0s1 1000 swap
filesys c0t0d0s3 15 unnamed
filesys c0t0d0s7 free /tmp2

system_type standalone
cluster SUNWCreq

This was fixed. My configuration was incorrect on the Installation Media section,

from the wiki,

Name: Solaris Install Media

Path: http://server/Solaris/install/Solaris_$major.$minor_$arch_$release
Media Path: server:/Solaris/install/Solaris_$major.$minor_$arch_$release
Config Path: server:/jumpstart
Image Path: server:/Solaris/images

Thanks for the help!