# ${GRML_FAI_CONFIG}/config/files/etc/apt/sources.list.d/
# containing something like:
# deb file:///media/mirror/debian sid main contrib non-free
# ${GRML_FAI_CONFIG}/config/files/etc/apt/sources.list.d/
# containing something like:
# deb file:///media/mirror/debian sid main contrib non-free