Building d-i miniiso

["Rage Callao" <rage.callao@gmail.com>]

Hi,

I'm been trying to build the d-i miniiso by following the instructions here:
http://wiki.debian.org/DebianInstaller/GUIBuild

But unfortunately I keep running into the same error:

Unpacking libslang2 (from udebs/libslang2.udeb) ...
dpkg (subprocess): failed to chroot to `./tmp/gtk-miniiso/tree':
Operation not permitted
dpkg: error processing udebs/libslang2.udeb (--unpack):
subprocess pre-installation script returned error exit status 2
dpkg (subprocess): failed to chroot to `./tmp/gtk-miniiso/tree':
Operation not permitted
dpkg: error while cleaning up:
subprocess post-removal script returned error exit status 2
Errors were encountered while processing:
udebs/libslang2.udeb
make[2]: *** [stamps/tree-unpack-gtk-miniiso-stamp] Error 1
make[1]: *** [_build] Error 2
make: *** [build_gtk-miniiso] Error 2

I'm using testing and the sources.list.udeb.local is pointing to
unstable. What am I doing wrong here?

--
Rage