So we may have an alternative :-) * start build in a way you can chroot into the image (--hook bash) * inside chroot: export DISPLAY=localhost:1 * and then on your building machine (outside chroot): Xnest -ac :1 * install software (excluding Kernel?), change gnome/kde themes, change relevant /etc/ files and logout. * continue the build This should be a way to be included in the wiki, easier IMHO. :-) Marco Ghirlanda