chore(builder): only update-grub at first boot (#38)

layers/macos_arm64/etc/init.d/ovmservice

@@ -82,10 +82,17 @@ umount_efi() {
 	umount /boot/efi/
 }
 
-start() {
-	update-grub
+# Update grub only running at first boot
+update_grub(){
+	if [[ -f /.first_boot ]];then
+	update-grub && rm /.first_boot
 	sync
+	fi
+}
+
+start() {
 	umount_efi
+	update_grub
 	# Format /dev/vdb with $uuid first
 	format_and_mount_var
 	# Mount /tmp/initfs(virtioFS), and exec $ign_sh

target_builder/macos_arm64

@@ -159,6 +159,19 @@ copy_layer() {
 		}
 	} && cd $workspace
 
+	cd $output && {
+		sudo -E proot $qemu_flag --rootfs=./target_rootfs \
+			-b /dev:/dev \
+			-b /sys:/sys \
+			-b /proc:/proc \
+			-b /etc/resolv.conf:/etc/resolv.conf \
+			-w /root \
+			-0 /bin/su -c "touch /.first_boot" || {
+			echo "Error: enable rc_parallel failed"
+			exit 100
+		}
+	} && cd $workspace
+
 	set +x
 	sync # must do sync !
 }