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#! /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 - Open Source 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 - Open Source 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
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