add serial command line flag

package/grub/Makefile

@@ -17,6 +17,7 @@ PKG_ARCH_DEPENDS:=	x86 x86_64 mips
 PKG_NOPARALLEL:=	1
 
 PKG_SUBPKGS:=		GRUB GRUB_TOOLS
+PKGSD_GRUB_TOOLS:=	GRUB2 tools
 
 PKG_CHOICES_GRUB:=	PC EFI
 PKGCD_PC:=		build for PC BIOS

target/x86_64/Makefile

@@ -9,7 +9,11 @@ include $(TOPDIR)/mk/image.mk
 
 KERNEL:=$(LINUX_DIR)/arch/x86/boot/bzImage
 ifeq ($(ADK_TARGET_QEMU_WITH_BOOTLOADER),y)
+ifeq ($(ADK_TARGET_QEMU_WITHOUT_GRAPHIC),y)
+CREATE:=./scripts/create.sh -g -t
+else
 CREATE:=./scripts/create.sh -g
+endif
 else
 CREATE:=./scripts/create.sh
 endif