name : 90-loaderentry.install #!/usr/bin/env bash # -*- mode: shell-script; indent-tabs-mode: nil; sh-basic-offset: 4; -*- # ex: ts=8 sw=4 sts=4 et filetype=sh # SPDX-License-Identifier: LGPL-2.1-or-later # # This file is part of systemd. # # systemd is free software; you can redistribute it and/or modify it # under the terms of the GNU Lesser General Public License as published by # the Free Software Foundation; either version 2.1 of the License, or # (at your option) any later version. # # systemd is distributed in the hope that it will be useful, but # WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU # General Public License for more details. # # You should have received a copy of the GNU Lesser General Public License # along with systemd; If not, see <http://www.gnu.org/licenses/>. COMMAND="$1" KERNEL_VERSION="$2" ENTRY_DIR_ABS="$3" KERNEL_IMAGE="$4" INITRD_OPTIONS_START="5" if ! [[ $KERNEL_INSTALL_MACHINE_ID ]]; then exit 0 fi if ! [[ -d "$ENTRY_DIR_ABS" ]]; then exit 0 fi MACHINE_ID=$KERNEL_INSTALL_MACHINE_ID BOOT_ROOT=${ENTRY_DIR_ABS%/$MACHINE_ID/$KERNEL_VERSION} BOOT_MNT=$(stat -c %m $BOOT_ROOT) if [[ $BOOT_MNT == '/' ]]; then ENTRY_DIR=$ENTRY_DIR_ABS else ENTRY_DIR=${ENTRY_DIR_ABS#$BOOT_MNT} fi if [[ $COMMAND == remove ]]; then rm -f "$BOOT_ROOT/loader/entries/$MACHINE_ID-$KERNEL_VERSION.conf" rm -f "$BOOT_ROOT/loader/entries/$MACHINE_ID-$KERNEL_VERSION+"*".conf" exit 0 fi if ! [[ $COMMAND == add ]]; then exit 1 fi if ! [[ $KERNEL_IMAGE ]]; then exit 1 fi if [[ -f /etc/os-release ]]; then . /etc/os-release elif [[ -f /usr/lib/os-release ]]; then . /usr/lib/os-release fi if ! [[ $PRETTY_NAME ]]; then PRETTY_NAME="Linux $KERNEL_VERSION" fi if [[ -f /etc/kernel/cmdline ]]; then read -r -d '' -a BOOT_OPTIONS < /etc/kernel/cmdline elif [[ -f /usr/lib/kernel/cmdline ]]; then read -r -d '' -a BOOT_OPTIONS < /usr/lib/kernel/cmdline else declare -a BOOT_OPTIONS read -r -d '' -a line < /proc/cmdline for i in "${line[@]}"; do [[ "${i#initrd=*}" != "$i" ]] && continue [[ "${i#BOOT_IMAGE=*}" != "$i" ]] && continue BOOT_OPTIONS+=("$i") done fi if [[ -f /etc/kernel/tries ]]; then read -r TRIES </etc/kernel/tries if ! [[ "$TRIES" =~ ^[0-9]+$ ]] ; then echo "/etc/kernel/tries does not contain an integer." >&2 exit 1 fi LOADER_ENTRY="$BOOT_ROOT/loader/entries/$MACHINE_ID-$KERNEL_VERSION+$TRIES.conf" else LOADER_ENTRY="$BOOT_ROOT/loader/entries/$MACHINE_ID-$KERNEL_VERSION.conf" fi install -g root -o root -m 0644 "$KERNEL_IMAGE" "$ENTRY_DIR_ABS/linux" || { echo "Could not copy '$KERNEL_IMAGE' to '$ENTRY_DIR_ABS/linux'." >&2 exit 1 } INITRD_OPTIONS=( "${@:${INITRD_OPTIONS_START}}" ) for initrd in "${INITRD_OPTIONS[@]}"; do if [[ -f "${initrd}" ]]; then initrd_basename="$(basename ${initrd})" [ "$KERNEL_INSTALL_VERBOSE" -gt 0 ] && \ echo "Installing $ENTRY_DIR_ABS/${initrd_basename}" install -g root -o root -m 0644 "${initrd}" "$ENTRY_DIR_ABS/${initrd_basename}" || { echo "Could not copy '${initrd}' to '$ENTRY_DIR_ABS/${initrd_basename}'." >&2 exit 1 } fi done # If no initrd option is supplied, fall back to "initrd" which is # the name used by dracut when generating it in its kernel-install hook [[ ${#INITRD_OPTIONS[@]} == 0 ]] && INITRD_OPTIONS=( initrd ) mkdir -p "${LOADER_ENTRY%/*}" || { echo "Could not create loader entry directory '${LOADER_ENTRY%/*}'." >&2 exit 1 } [ "$KERNEL_INSTALL_VERBOSE" -gt 0 ] && \ echo "Creating $LOADER_ENTRY" { echo "title $PRETTY_NAME" echo "version $KERNEL_VERSION" echo "machine-id $MACHINE_ID" echo "options ${BOOT_OPTIONS[*]}" echo "linux $ENTRY_DIR/linux" for initrd in "${INITRD_OPTIONS[@]}"; do [[ -f $ENTRY_DIR_ABS/$(basename ${initrd}) ]] && \ echo "initrd $ENTRY_DIR/$(basename ${initrd})" done : } > "$LOADER_ENTRY" || { echo "Could not create loader entry '$LOADER_ENTRY'." >&2 exit 1 } exit 0