Fabio Erculiani
86 lines
2.7 KiB
Bash
Executable File
86 lines
2.7 KiB
Bash
Executable File
#!/bin/bash
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# Expected env variables:
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# CHROOT_DIR
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# CDROOT_DIR
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# This scripts generates an EFI-enabled boot structure
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MOUNT_DIRS=()
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EFI_BOOT_DIR="${CDROOT_DIR}/efi/boot"
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GRUB_BOOT_DIR_PREFIX="/boot/grub"
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GRUB_LOCALE_DIR_PREFIX="${GRUB_BOOT_DIR_PREFIX}/locale"
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GRUB_BOOT_DIR="${CDROOT_DIR}${GRUB_BOOT_DIR_PREFIX}"
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GRUB_LOCALE_DIR="${CDROOT_DIR}${GRUB_LOCALE_DIR_PREFIX}"
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mkdir -p "${EFI_BOOT_DIR}" || exit 1
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mkdir -p "${GRUB_BOOT_DIR}" || exit 1
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mkdir -p "${GRUB_LOCALE_DIR}" || exit 1
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x86_64_EFI_DIR_PREFIX="/usr/lib/grub/x86_64-efi"
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i386_EFI_DIR_PREFIX="/usr/lib/grub/i386-efi"
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x86_64_EFI_DIR="${CHROOT_DIR}${x86_64_EFI_DIR_PREFIX}"
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i386_EFI_DIR="${CHROOT_DIR}${i386_EFI_DIR_PREFIX}"
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pre_iso_signal_handler() {
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for mount_dir in "${MOUNT_DIRS[@]}"; do
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if [ -d "${mount_dir}" ]; then
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umount -f "${mount_dir}" || \
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umount -l "${mount_dir}" # best effort
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rmdir "${mount_dir}"
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fi
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done
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}
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trap "pre_iso_signal_handler" EXIT SIGINT SIGQUIT SIGILL SIGTERM SIGHUP
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if [ -d "${x86_64_EFI_DIR}" ]; then
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# create the EFI image
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chroot "${CHROOT_DIR}" grub2-mkimage \
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-p "${GRUB_BOOT_DIR_PREFIX}" \
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-d "${x86_64_EFI_DIR_PREFIX}" \
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-o /bootx64.efi \
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-O x86_64-efi ext2 fat lvm part_msdos part_gpt search_fs_uuid normal chain iso9660 \
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|| exit 1
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mv "${CHROOT_DIR}"/bootx64.efi "${EFI_BOOT_DIR}/" || exit 1
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cp -Rp "${x86_64_EFI_DIR}" "${GRUB_BOOT_DIR}/" || exit 1
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fi
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if [ -d "${i386_EFI_DIR}" ]; then
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# create the EFI image
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chroot "${CHROOT_DIR}" grub2-mkimage \
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-p "${GRUB_BOOT_DIR_PREFIX}" \
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-d "${i386_EFI_DIR_PREFIX}" \
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-o /boota32.efi \
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-O i386-efi ext2 fat lvm part_msdos part_gpt search_fs_uuid normal chain iso9660 \
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|| exit 1
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mv "${CHROOT_DIR}"/boota32.efi "${EFI_BOOT_DIR}/" || exit 1
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cp -Rp "${i386_EFI_DIR}" "${GRUB_BOOT_DIR}/" || exit 1
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fi
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# now the tricky part, create an eltorito alternative image
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_efi_img="${GRUB_BOOT_DIR}"/efi.img
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dd bs=512 count=2880 if=/dev/zero of="${_efi_img}" || exit 1
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mkfs.msdos "${_efi_img}" || exit 1
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tmp_dir=$(mktemp -d --suffix="make_grub_efi")
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[[ -z "${tmp_dir}" ]] && exit 1
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MOUNT_DIRS+=( "${tmp_dir}" )
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mount -o loop "${_efi_img}" "${tmp_dir}" || exit 1
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mkdir -p "${tmp_dir}/efi/boot" || exit 1
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_efi_boot="${EFI_BOOT_DIR}"/bootx64.efi
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cp "${_efi_boot}" "${tmp_dir}/efi/boot"/ || exit 1
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umount "${tmp_dir}" || exit 1
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# These must exist.
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cp "${CHROOT_DIR}/usr/share/grub/unicode.pf2" "${GRUB_BOOT_DIR}"/ || exit 1
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# Copy locale files
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localedir="${CHROOT_DIR}/usr/share/locale"
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for dir in "${localedir}"/*; do
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if [ -f "${dir}/LC_MESSAGES/grub.mo" ]; then
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cp -f "${dir}/LC_MESSAGES/grub.mo" "${GRUB_LOCALE_DIR}/${dir##*/}.mo"
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fi
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done
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# Copy splash, this is in sabayon-artwork-grub, we expect to find it
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cp "${CHROOT_DIR}/usr/share/grub/default-splash.png" "${GRUB_BOOT_DIR}"/ \
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|| exit 1
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