From 550b5be07de1fc2d4800f34d44e396ade3c7b6c0 Mon Sep 17 00:00:00 2001 From: plainlinen Date: Thu, 9 Jun 2022 22:37:10 -0700 Subject: Add *_uefi-x64.grub.* functions to mkarchiso --- archiso/mkarchiso | 272 +++++++++++++++++++++++++++++++++++++++++++++++++----- 1 file changed, 251 insertions(+), 21 deletions(-) (limited to 'archiso') diff --git a/archiso/mkarchiso b/archiso/mkarchiso index f8c180a..b683d48 100755 --- a/archiso/mkarchiso +++ b/archiso/mkarchiso @@ -493,30 +493,42 @@ _make_boot_on_fat() { # Create a FAT image (efiboot.img) which will serve as the EFI system partition # $1: image size in bytes _make_efibootimg() { - local imgsize="0" + local imgsize_kib="0" + local imgsize_bytes=${1} + + if (( imgsize_bytes < 2*1024*1024 )); then + _msg_info "Validating '${bootmode}': efiboot.img size is ${imgsize_bytes} bytes is less than 2 MiB! Bumping up to 2 MiB" + imgsize_bytes=$((2*1024*1024)) + fi # Convert from bytes to KiB and round up to the next full MiB with an additional MiB for reserved sectors. - imgsize="$(awk 'function ceil(x){return int(x)+(x>int(x))} + imgsize_kib="$(awk 'function ceil(x){return int(x)+(x>int(x))} function byte_to_kib(x){return x/1024} function mib_to_kib(x){return x*1024} - END {print mib_to_kib(ceil((byte_to_kib($1)+1024)/1024))}' <<< "${1}" + END {print mib_to_kib(ceil((byte_to_kib($1)+1024)/1024))}' <<< "${imgsize_bytes}" )" # The FAT image must be created with mkfs.fat not mformat, as some systems have issues with mformat made images: # https://lists.gnu.org/archive/html/grub-devel/2019-04/msg00099.html rm -f -- "${work_dir}/efiboot.img" - _msg_info "Creating FAT image of size: ${imgsize} KiB..." + _msg_info "Creating FAT image of size: ${imgsize_kib} KiB..." if [[ "${quiet}" == "y" ]]; then # mkfs.fat does not have a -q/--quiet option, so redirect stdout to /dev/null instead # https://github.com/dosfstools/dosfstools/issues/103 - mkfs.fat -C -n ARCHISO_EFI "${work_dir}/efiboot.img" "${imgsize}" > /dev/null + mkfs.fat -C -n ARCHISO_EFI "${work_dir}/efiboot.img" "${imgsize_kib}" > /dev/null else - mkfs.fat -C -n ARCHISO_EFI "${work_dir}/efiboot.img" "${imgsize}" + mkfs.fat -C -n ARCHISO_EFI "${work_dir}/efiboot.img" "${imgsize_kib}" fi # Create the default/fallback boot path in which a boot loaders will be placed later. mmd -i "${work_dir}/efiboot.img" ::/EFI ::/EFI/BOOT } +# Copy the grub.cfg file in efiboot.img which is used by both UEFI ia32 and UEFI x64. +_make_efibootimg_grubcfg() { + mcopy -i "${work_dir}/efiboot.img" \ + "${work_dir}/grub.cfg" ::/EFI/BOOT/grub.cfg +} + _make_bootmode_uefi-ia32.grub.esp() { # Fill Grub configuration files sed "s|%ARCHISO_LABEL%|${iso_label}|g; @@ -537,16 +549,16 @@ _make_bootmode_uefi-ia32.grub.esp() { efiboot_files+=("${work_dir}/BOOTIA32.EFI" "${pacstrap_dir}/usr/share/edk2-shell/ia32/Shell_Full.efi") - if [[ ! " ${bootmodes[*]} " =~ uefi-x64.systemd-boot.esp ]]; then - efiboot_files+=("${pacstrap_dir}/boot/vmlinuz-"* - "${pacstrap_dir}/boot/initramfs-"*".img") - + if [[ " ${bootmodes[*]} " =~ uefi-x64.systemd-boot.esp ]]; then + # TODO: Remove this branch. + _run_once _make_bootmode_uefi-x64.systemd-boot.esp + elif [[ " ${bootmodes[*]} " =~ uefi-x64.grub.esp ]]; then + _run_once _make_bootmode_uefi-x64.grub.esp + else efiboot_imgsize="$(du -bc "${efiboot_files[@]}" \ 2>/dev/null | awk 'END { print $1 }')" # Create a FAT image for the EFI system partition _make_efibootimg "$efiboot_imgsize" - else - _run_once _make_bootmode_uefi-x64.systemd-boot.esp fi # Copy grub EFI binary to the default/fallback boot path @@ -554,10 +566,8 @@ _make_bootmode_uefi-ia32.grub.esp() { "${work_dir}/BOOTIA32.EFI" ::/EFI/BOOT/BOOTIA32.EFI # Copy GRUB configuration files - mcopy -i "${work_dir}/efiboot.img" \ - "${work_dir}/grub.cfg" ::/EFI/BOOT/grub.cfg + _run_once _make_efibootimg_grubcfg - # shellia32.efi is picked up automatically when on / if [[ -e "${pacstrap_dir}/usr/share/edk2-shell/ia32/Shell_Full.efi" ]]; then mcopy -i "${work_dir}/efiboot.img" \ "${pacstrap_dir}/usr/share/edk2-shell/ia32/Shell_Full.efi" ::/shellia32.efi @@ -586,7 +596,6 @@ _make_bootmode_uefi-ia32.grub.eltorito() { install -m 0644 -- "${work_dir}/grub.cfg" "${isofs_dir}/EFI/BOOT/grub.cfg" # edk2-shell based UEFI shell - # shellia32.efi is picked up automatically when on / if [[ -e "${pacstrap_dir}/usr/share/edk2-shell/ia32/Shell_Full.efi" ]]; then install -m 0644 -- "${pacstrap_dir}/usr/share/edk2-shell/ia32/Shell_Full.efi" \ "${isofs_dir}/shellia32.efi" @@ -595,6 +604,75 @@ _make_bootmode_uefi-ia32.grub.eltorito() { _msg_info "Done!" } +_make_bootmode_uefi-x64.grub.esp() { + # Fill Grub configuration files + sed "s|%ARCHISO_LABEL%|${iso_label}|g; + s|%INSTALL_DIR%|${install_dir}|g; + s|%ARCH%|${arch}|g" \ + "${profile}/grub/grub.cfg" > "${work_dir}/grub.cfg" + + # shellcheck disable=SC2016 + printf 'configfile ${cmdpath}/grub.cfg\n' > "${work_dir}/grub-embed.cfg" + + # Create EFI file + grub-mkstandalone -O x86_64-efi \ + --modules="part_gpt part_msdos fat iso9660" \ + --locales="en@quot" \ + --themes="" \ + -o "${work_dir}/BOOTx64.EFI" "boot/grub/grub.cfg=${work_dir}/grub-embed.cfg" + # Add GRUB to the list of files used to calculate the required FAT image size. + efiboot_files+=("${work_dir}/BOOTx64.EFI" + "${pacstrap_dir}/usr/share/edk2-shell/x64/Shell_Full.efi") + + efiboot_imgsize="$(du -bc "${efiboot_files[@]}" \ + 2>/dev/null | awk 'END { print $1 }')" + + # Create a FAT image for the EFI system partition + _make_efibootimg "$efiboot_imgsize" + + # Copy grub EFI binary to the default/fallback boot path + mcopy -i "${work_dir}/efiboot.img" \ + "${work_dir}/BOOTx64.EFI" ::/EFI/BOOT/BOOTx64.EFI + + _run_once _make_efibootimg_grubcfg + + if [[ -e "${pacstrap_dir}/usr/share/edk2-shell/x64/Shell_Full.efi" ]]; then + mcopy -i "${work_dir}/efiboot.img" \ + "${pacstrap_dir}/usr/share/edk2-shell/x64/Shell_Full.efi" ::/shellx64.efi + fi + + _msg_info "Done! GRUB set up for UEFI booting successfully." +} + +# Prepare GRUB for El Torito booting +_make_bootmode_uefi-x64.grub.eltorito() { + # El Torito UEFI boot requires an image containing the EFI system partition. + # uefi-x64.grub.eltorito has the same requirements as uefi-x64.grub.esp + _run_once _make_bootmode_uefi-x64.grub.esp + + # Additionally set up system-boot in ISO 9660. This allows creating a medium for the live environment by using + # manual partitioning and simply copying the ISO 9660 file system contents. + # This is not related to El Torito booting and no firmware uses these files. + _msg_info "Preparing an /EFI directory for the ISO 9660 file system..." + install -d -m 0755 -- "${isofs_dir}/EFI/BOOT" + + # Copy GRUB EFI binary to the default/fallback boot path + install -m 0644 -- "${work_dir}/BOOTx64.EFI" \ + "${isofs_dir}/EFI/BOOT/BOOTx64.EFI" + + # Copy GRUB configuration files + # install -m 0644 -- "${work_dir}/grub.cfg" "${isofs_dir}" + # TODO: ${cmdpath} is (cd0)/EFI/BOOT, so we should put grub.cfg here? + install -m 0644 -- "${work_dir}/grub.cfg" "${isofs_dir}/EFI/BOOT" + + # edk2-shell based UEFI shell + if [[ -e "${pacstrap_dir}/usr/share/edk2-shell/x64/Shell_Full.efi" ]]; then + install -m 0644 -- "${pacstrap_dir}/usr/share/edk2-shell/x64/Shell_Full.efi" "${isofs_dir}/shellx64.efi" + fi + + _msg_info "Done!" +} + # Prepare system-boot for booting when written to a disk (isohybrid) _make_bootmode_uefi-x64.systemd-boot.esp() { local _file efiboot_imgsize @@ -724,6 +802,11 @@ _validate_requirements_bootmode_bios.syslinux.eltorito() { } _validate_requirements_bootmode_uefi-x64.systemd-boot.esp() { + # shellcheck disable=SC2076 + if [[ " ${bootmodes[*]} " =~ ' uefi-x64.grub.esp ' ]]; then + _msg_error "Validating '${bootmode}': cannot be used with bootmode uefi-x64.grub.esp!" 0 + fi + # Check if mkfs.fat is available if ! command -v mkfs.fat &> /dev/null; then (( validation_error=validation_error+1 )) @@ -764,6 +847,11 @@ _validate_requirements_bootmode_uefi-x64.systemd-boot.esp() { } _validate_requirements_bootmode_uefi-x64.systemd-boot.eltorito() { + # shellcheck disable=SC2076 + if [[ " ${bootmodes[*]} " =~ ' uefi-x64.grub.eltorito ' ]]; then + _msg_error "Validating '${bootmode}': cannot be used with bootmode uefi-x64.grub.eltorito!" 0 + fi + # uefi-x64.systemd-boot.eltorito has the exact same requirements as uefi-x64.systemd-boot.esp _validate_requirements_bootmode_uefi-x64.systemd-boot.esp } @@ -774,7 +862,15 @@ _validate_requirements_bootmode_uefi-ia32.grub.esp() { (( validation_error=validation_error+1 )) _msg_error "Validating '${bootmode}': grub-install is not available on this host. Install 'grub'!" 0 fi - _validate_requirements_bootmode_uefi-x64.systemd-boot.esp + + # shellcheck disable=SC2076 + if [[ " ${bootmodes[*]} " =~ ' uefi-x64.systemd-boot.esp ' ]]; then + _validate_requirements_bootmode_uefi-x64.systemd-boot.esp + elif [[ " ${bootmodes[*]} " =~ ' uefi-x64.grub.esp ' ]]; then + _validate_requirements_bootmode_uefi-x64.grub.esp + else + _msg_error "Validating '${bootmode}': requires one of bootmode uefi-x64.systemd-boot.esp or uefi-x64.grub.esp" 0 + fi } _validate_requirements_bootmode_uefi-ia32.grub.eltorito() { @@ -782,6 +878,65 @@ _validate_requirements_bootmode_uefi-ia32.grub.eltorito() { _validate_requirements_bootmode_uefi-ia32.grub.esp } +_validate_requirements_bootmode_uefi-x64.grub.esp() { + # shellcheck disable=SC2076 + if [[ " ${bootmodes[*]} " =~ ' uefi-x64.systemd-boot.esp ' ]]; then + _msg_error "Validating '${bootmode}': cannot be used with bootmode uefi-x64.systemd-boot.esp!" 0 + fi + + # Check if GRUB is available + if ! command -v grub-mkstandalone &> /dev/null; then + (( validation_error=validation_error+1 )) + _msg_error "Validating '${bootmode}': grub-install is not available on this host. Install 'grub'!" 0 + fi + + # Check if mkfs.fat is available + if ! command -v mkfs.fat &> /dev/null; then + (( validation_error=validation_error+1 )) + _msg_error "Validating '${bootmode}': mkfs.fat is not available on this host. Install 'dosfstools'!" 0 + fi + + # Check if mmd and mcopy are available + if ! { command -v mmd &> /dev/null && command -v mcopy &> /dev/null; }; then + _msg_error "Validating '${bootmode}': mmd and/or mcopy are not available on this host. Install 'mtools'!" 0 + fi + + # Check if GRUB configuration files exist + if [[ ! -d "${profile}/grub" ]]; then + (( validation_error=validation_error+1 )) + _msg_error "Validating '${bootmode}': The '${profile}/grub' directory is missing!" 0 + else + if [[ ! -e "${profile}/grub/grub.cfg" ]]; then + (( validation_error=validation_error+1 )) + _msg_error "Validating '${bootmode}': File '${profile}/grub/grub.cfg' not found!" 0 + fi + local conffile + for conffile in "${profile}/grub/"*'.cfg'; do + if [[ -e "${conffile}" ]]; then + break + else + (( validation_error=validation_error+1 )) + _msg_error "Validating '${bootmode}': No configuration file found in '${profile}/grub/'!" 0 + fi + done + fi + + # Check for optional packages + # shellcheck disable=SC2076 + if [[ ! " ${pkg_list[*]} " =~ ' edk2-shell ' ]]; then + _msg_info "'edk2-shell' is not in the package list. The ISO will not contain a bootable UEFI shell." + fi +} + +_validate_requirements_bootmode_uefi-x64.grub.eltorito() { + # shellcheck disable=SC2076 + if [[ " ${bootmodes[*]} " =~ ' uefi-x64.systemd-boot.eltorito ' ]]; then + _msg_error "Validating '${bootmode}': cannot be used with bootmode uefi-x64.systemd-boot.eltorito!" 0 + fi + # uefi-x64.grub.eltorito has the exact same requirements as uefi-x64.grub.esp + _validate_requirements_bootmode_uefi-x64.grub.esp +} + # Build airootfs filesystem image _prepare_airootfs_image() { _run_once "_mkairootfs_${airootfs_image_type}" @@ -1002,17 +1157,20 @@ _add_xorrisofs_options_bios.syslinux.mbr() { # GRUB in an attached EFI system partition _add_xorrisofs_options_uefi-ia32.grub.esp() { + # TODO: how does the bootmodes systemd-boot vs x64.grub affect ${bootmodes[*]} tests in _add_xorrisofs_options_uefi-x64.systemd-boot.esp etc? # shellcheck disable=SC2076 - if [[ ! " ${bootmodes[*]} " =~ ' uefi-x64.systemd-boot.esp ' ]]; then - _add_xorrisofs_options_uefi-x64.systemd-boot.esp + if [[ ! " ${bootmodes[*]} " =~ ' uefi-x64.systemd-boot.esp ' && ! " ${bootmodes[*]} " =~ ' uefi-x64.grub.esp ' ]]; then + # _add_xorrisofs_options_uefi-x64.systemd-boot.esp + _add_xorrisofs_options_uefi-x64.grub.esp fi } # GRUB via El Torito _add_xorrisofs_options_uefi-ia32.grub.eltorito() { # shellcheck disable=SC2076 - if [[ ! " ${bootmodes[*]} " =~ ' uefi-x64.systemd-boot.eltorito ' ]]; then - _add_xorrisofs_options_uefi-x64.systemd-boot.eltorito + if [[ ! " ${bootmodes[*]} " =~ ' uefi-x64.systemd-boot.eltorito ' && ! " ${bootmodes[*]} " =~ ' uefi-x64.grub.eltorito ' ]]; then + # _add_xorrisofs_options_uefi-x64.systemd-boot.eltorito + _add_xorrisofs_options_uefi-x64.grub.eltorito fi } @@ -1086,6 +1244,78 @@ _add_xorrisofs_options_uefi-x64.systemd-boot.eltorito() { [[ " ${bootmodes[*]} " =~ ' bios.' ]] || xorrisofs_options+=('-eltorito-catalog' 'EFI/boot.cat') } +# GRUB in an attached EFI system partition. +# Same as _add_xorrisofs_options_uefi-x64.systemd-boot.esp. +_add_xorrisofs_options_uefi-x64.grub.esp() { + # Move the first partition away from the start of the ISO, otherwise the GPT will not be valid and ISO 9660 + # partition will not be mountable + # shellcheck disable=SC2076 + [[ " ${xorrisofs_options[*]} " =~ ' -partition_offset ' ]] || xorrisofs_options+=('-partition_offset' '16') + # Attach efiboot.img as a second partition and set its partition type to "EFI system partition" + xorrisofs_options+=('-append_partition' '2' 'C12A7328-F81F-11D2-BA4B-00A0C93EC93B' "${work_dir}/efiboot.img") + # Ensure GPT is used as some systems do not support UEFI booting without it + # shellcheck disable=SC2076 + if [[ " ${bootmodes[*]} " =~ ' bios.syslinux.mbr ' ]]; then + # A valid GPT prevents BIOS booting on some systems, instead use an invalid GPT (without a protective MBR). + # The attached partition will have the EFI system partition type code in MBR, but in the invalid GPT it will + # have a Microsoft basic partition type code. + if [[ ! " ${bootmodes[*]} " =~ ' uefi-x64.grub.eltorito ' && ! " ${bootmodes[*]} " =~ ' uefi-ia32.grub.eltorito ' ]]; then + # If '-isohybrid-gpt-basdat' is specified before '-e', then the appended EFI system partition will have the + # EFI system partition type ID/GUID in both MBR and GPT. If '-isohybrid-gpt-basdat' is specified after '-e', + # the appended EFI system partition will have the Microsoft basic data type GUID in GPT. + if [[ ! " ${xorrisofs_options[*]} " =~ ' -isohybrid-gpt-basdat ' ]]; then + xorrisofs_options+=('-isohybrid-gpt-basdat') + fi + fi + else + # Use valid GPT if BIOS booting support will not be required + xorrisofs_options+=('-appended_part_as_gpt') + fi +} + +# GRUB via El Torito +# Same as _add_xorrisofs_options_uefi-x64.systemd-boot.eltorito. +_add_xorrisofs_options_uefi-x64.grub.eltorito() { + # shellcheck disable=SC2076 + if [[ " ${bootmodes[*]} " =~ ' uefi-x64.grub.esp ' || " ${bootmodes[*]} " =~ ' uefi-ia32.grub.esp ' ]]; then + # grub in an attached EFI system partition via El Torito + xorrisofs_options+=( + # Start a new El Torito boot entry for UEFI + '-eltorito-alt-boot' + # Set the second partition as the El Torito UEFI boot image + '-e' '--interval:appended_partition_2:all::' + # Boot image is not emulating floppy or hard disk; required for all known boot loaders + '-no-emul-boot' + ) + # A valid GPT prevents BIOS booting on some systems, use an invalid GPT instead. + if [[ " ${bootmodes[*]} " =~ ' bios.syslinux.mbr ' ]]; then + # If '-isohybrid-gpt-basdat' is specified before '-e', then the appended EFI system partition will have the + # EFI system partition type ID/GUID in both MBR and GPT. If '-isohybrid-gpt-basdat' is specified after '-e', + # the appended EFI system partition will have the Microsoft basic data type GUID in GPT. + if [[ ! " ${xorrisofs_options[*]} " =~ ' -isohybrid-gpt-basdat ' ]]; then + xorrisofs_options+=('-isohybrid-gpt-basdat') + fi + fi + else + # The ISO will not contain a GPT partition table, so to be able to reference efiboot.img, place it as a + # file inside the ISO 9660 file system + install -d -m 0755 -- "${isofs_dir}/EFI/archiso" + cp -a -- "${work_dir}/efiboot.img" "${isofs_dir}/EFI/archiso/efiboot.img" + # grub in an embedded efiboot.img via El Torito + xorrisofs_options+=( + # Start a new El Torito boot entry for UEFI + '-eltorito-alt-boot' + # Set efiboot.img as the El Torito UEFI boot image + '-e' 'EFI/archiso/efiboot.img' + # Boot image is not emulating floppy or hard disk; required for all known boot loaders + '-no-emul-boot' + ) + fi + # Specify where to save the El Torito boot catalog file in case it is not already set by bios.syslinux.eltorito + # shellcheck disable=SC2076 + [[ " ${bootmodes[*]} " =~ ' bios.' ]] || xorrisofs_options+=('-eltorito-catalog' 'EFI/boot.cat') +} + # Build bootstrap image _build_bootstrap_image() { local _bootstrap_parent -- cgit v1.2.3-70-g09d2