initial import

ipxe/grub

@@ -0,0 +1,49 @@
+#! /bin/sh -e
+########################################################
+# This script generates an iPXE entry on grub.cfg      #
+# if ipxe is installed on the system.                  #
+########################################################
+
+prefix="/usr"
+exec_prefix="${prefix}"
+
+datarootdir="/usr/share"
+datadir="${datarootdir}"
+
+. "${datadir}/grub/grub-mkconfig_lib"
+
+IPXE_BZIMAGE="/boot/ipxe/ipxe.lkrn"
+case $(uname -m) in
+	x86_64)
+		IPXE_EFI="/usr/lib/ipxe/efi-x86_64.efi" ;;
+	*)
+		IPXE_EFI="/usr/lib/ipxe/efi-i386.efi" ;;
+esac
+EFI_MOUNT="$(lsblk -l -o 'MOUNTPOINT,PARTTYPE' -n | grep 'c12a7328-f81f-11d2-ba4b-00a0c93ec93b' | head -n1 | cut -d' ' -f1)"
+IPXE_EFI_DEST="${EFI_MOUNT}/EFI/ipxe/ipxe.efi"
+CLASS="--class ipxe --class gnu --class tool"
+
+if [ -d /sys/firmware/efi ]; then
+	if [ -n "${EFI_MOUNT}" ]; then
+		# EFI system
+		# This can chainload from EFI system partition only!
+		echo "Setting up iPXE for EFI chainloading" >&2
+		mkdir -p "$(dirname ${IPXE_EFI_DEST})"
+		cp ${IPXE_EFI} "${IPXE_EFI_DEST}"
+		echo "menuentry \"iPXE - Free Boot Firmware\" ${CLASS} {"
+		prepare_grub_to_access_device $(${grub_probe} --target=device ${IPXE_EFI_DEST}) | sed -e "s/^/\t/"
+		echo -e "\techo 'Loading iPXE EFI ...'"
+		echo -e "\tchainloader $(make_system_path_relative_to_its_root ${IPXE_EFI_DEST})"
+		echo "}"
+	fi
+else
+	if [ -e ${IPXE_BZIMAGE} ] && is_path_readable_by_grub ${IPXE_BZIMAGE}; then
+		# image exists, create menu entry
+		echo "Found iPXE bzImage: ${IPXE_BZIMAGE}" >&2
+		echo "menuentry \"iPXE - Free Boot Firmware\" ${CLASS} {"
+		prepare_grub_to_access_device $(${grub_probe} --target=device ${IPXE_BZIMAGE}) | sed -e "s/^/\t/"
+		echo -e "\techo 'Loading iPXE ...'"
+		echo -e "\tlinux16 $(make_system_path_relative_to_its_root ${IPXE_BZIMAGE})"
+		echo "}"
+	fi
+fi