[scripts] mkloopcard: add local.d script for setting up openrc at first boot

boot/arm_startup/00-board-setup.start

@@ -0,0 +1,12 @@
+#!/bin/sh
+# The first boot is actually a reboot, to let openrc realize that
+# clock is screwed. This fixes xdm startup.
+
+echo
+echo "Hello, this is the first boot. System is being configured"
+echo "A reboot will happen shortly. Thanks"
+echo
+rc-update --update
+
+# kill myself
+rm -f /etc/local.d/00-board-setup.start

scripts/mkloopcard.sh

@@ -140,6 +140,16 @@ mount "${ext_part}" "${tmp_dir}"
 rsync -a -H -A -X --delete-during "${CHROOT_DIR}"/ "${tmp_dir}"/ --exclude "/proc/*" --exclude "/sys/*" \
 	--exclude "/dev/pts/*" --exclude "/dev/shm/*" || exit 1
 
+# Configure 00-board-setup.start
+source_board_setup="/sabayon/boot/arm_startup/00-board-setup.start"
+dest_board_setup="${CHROOT_DIR}/etc/local.d/00-board-setup.start"
+if [ -f "${source_board_setup}" ]; then
+	echo "Setting up ${dest_board_setup}"
+	cp "${source_board_setup}" "${dest_board_setup}" || exit 1
+	chmod 755 "${dest_board_setup}" || exit 1
+	chown root:root "${dest_board_setup}" || exit 1
+fi
+
 # execute PACKAGES_TO_ADD and PACKAGES_TO_REMOVE
 export ETP_NONINTERACTIVE=1
 # Entropy doesn't like non-UTF locale encodings