build problems

Anyone seen this before?  This was pretty early in the build process.
I'm trying to build a custom system and I suppose I could have
elimated a dependency, but I thought I had just eliminated X11, etc.

== 22:52:39 =[1]=> Building base/mkpkg [2003-09-09 6.0.3].
-> Reading package configuration from package directory.
-> Preparing build in src.mkpkg.system.20070509.225238.16323.localhost
-> Building. Writing output to $root/var/adm/logs/1-mkpkg.out
-> $root/var/adm/logs/1-mkpkg.out -> 1-mkpkg.log
== 05/09/07 22:52:48 =[1]=> Finished building package mkpkg.

Creating binary package file for mkpkg.
-> Building build/.../pkgs/mkpkg-2003-09-09.tar.bz2
chroot: cannot run command `bin/bash': No such file or directory
-> Unmounting loop mounts ...