| #!/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 |