Apply approach to allow for minimal builds

build/scripts/prepare.sh

@@ -31,13 +31,13 @@ dpkg-divert --local --rename --add /usr/bin/ischroot
 ln -sf /bin/true /usr/bin/ischroot
 
 ## Install HTTPS support for APT
-$minimal_apt_get_install apt-transport-https
+apt_get_install_permanent apt-transport-https
 
 ## Upgrade all packages
-apt-get dist-upgrade -y --no-install-recommends
+#apt-get dist-upgrade -y --no-install-recommends
 
 ## Fix locale
-$minimal_apt_get_install language-pack-en
+apt_get_install_permanent language-pack-en
 locale-gen en_US
 
 ## Create directory for boot scripts