Ordering of repo sources

src/freedombone-image-customise

@@ -690,13 +690,6 @@ function configure_user_interface {
         return
     fi
 
-    if [ ! $DEBIAN_REPO ]; then
-        DEBIAN_REPO='ftp.de.debian.org'
-    fi
-    if [ ! $DEBIAN_VERSION ]; then
-        DEBIAN_VERSION='jessie'
-    fi
-
     # desktop
     chroot "$rootdir" apt-get -y install mate-desktop-environment
 
@@ -834,10 +827,18 @@ case "$MACHINE" in
         ;;
 esac
 
+if [ ! $DEBIAN_REPO ]; then
+    DEBIAN_REPO='ftp.de.debian.org'
+fi
+if [ ! $DEBIAN_VERSION ]; then
+    DEBIAN_VERSION='jessie'
+fi
+
 set_apt_sources $BUILD_MIRROR
 chroot "$rootdir" apt-get clean
 chroot "$rootdir" rm -rf /var/lib/apt/lists/*
 chroot "$rootdir" apt-get clean
+set_apt_sources $MIRROR
 configure_backports
 configure_contrib_repo
 chroot "$rootdir" apt-get update
@@ -914,9 +915,6 @@ if $use_eatmydata ; then
     disable_eatmydata_override
 fi
 
-set_apt_sources $MIRROR
-chroot "$rootdir" apt-get update
-
 configure_ssh
 configure_networking
 admin_user_sudo