diff options
Diffstat (limited to 'src/kernel-install')
-rw-r--r-- | src/kernel-install/50-depmod.install | 17 | ||||
-rw-r--r-- | src/kernel-install/90-loaderentry.install | 124 | ||||
-rw-r--r-- | src/kernel-install/kernel-install | 171 | ||||
-rw-r--r-- | src/kernel-install/meson.build | 13 |
4 files changed, 325 insertions, 0 deletions
diff --git a/src/kernel-install/50-depmod.install b/src/kernel-install/50-depmod.install new file mode 100644 index 0000000..88f550a --- /dev/null +++ b/src/kernel-install/50-depmod.install @@ -0,0 +1,17 @@ +#!/bin/bash +# -*- mode: shell-script; indent-tabs-mode: nil; sh-basic-offset: 4; -*- +# ex: ts=8 sw=4 sts=4 et filetype=sh + +[[ $2 ]] || exit 1 + +case "$1" in + add) + [[ -d /lib/modules/"$2"/kernel ]] || exit 0 + exec depmod -a "$2" + ;; + remove) + exec rm -f /lib/modules/"$2"/modules.{alias{,.bin},builtin.bin,dep{,.bin},devname,softdep,symbols{,.bin}} + ;; + *) + exit 0 +esac diff --git a/src/kernel-install/90-loaderentry.install b/src/kernel-install/90-loaderentry.install new file mode 100644 index 0000000..75dd5a1 --- /dev/null +++ b/src/kernel-install/90-loaderentry.install @@ -0,0 +1,124 @@ +#!/bin/bash +# -*- mode: shell-script; indent-tabs-mode: nil; sh-basic-offset: 4; -*- +# ex: ts=8 sw=4 sts=4 et filetype=sh + +COMMAND="$1" +KERNEL_VERSION="$2" +BOOT_DIR_ABS="$3" +KERNEL_IMAGE="$4" +INITRD_OPTIONS_START="5" + +if ! [[ $KERNEL_INSTALL_MACHINE_ID ]]; then + exit 0 +fi + +if ! [[ -d "$BOOT_DIR_ABS" ]]; then + exit 0 +fi + +MACHINE_ID=$KERNEL_INSTALL_MACHINE_ID + +BOOT_DIR="/$MACHINE_ID/$KERNEL_VERSION" +BOOT_ROOT=${BOOT_DIR_ABS%$BOOT_DIR} + +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 + +declare -a BOOT_OPTIONS + +if [[ -f /etc/kernel/cmdline ]]; then + read -r -d '' -a BOOT_OPTIONS < /etc/kernel/cmdline +fi + +if ! [[ ${BOOT_OPTIONS[*]} ]]; then + read -r -d '' -a line < /proc/cmdline + for i in "${line[@]}"; do + [[ "${i#initrd=*}" != "$i" ]] && continue + BOOT_OPTIONS+=("$i") + done +fi + +if ! [[ ${BOOT_OPTIONS[*]} ]]; then + echo "Could not determine the kernel command line parameters." >&2 + echo "Please specify the kernel command line in /etc/kernel/cmdline!" >&2 + exit 1 +fi + +if [[ -f /etc/kernel/tries ]]; then + read -r TRIES </etc/kernel/tries + if ! [[ "$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-$KERNEL_VERSION.conf" +fi + +cp "$KERNEL_IMAGE" "$BOOT_DIR_ABS/linux" && + chown root:root "$BOOT_DIR_ABS/linux" && + chmod 0644 "$BOOT_DIR_ABS/linux" || { + echo "Could not copy '$KERNEL_IMAGE to '$BOOT_DIR_ABS/linux'." >&2 + exit 1 +} + +INITRD_OPTIONS=( "${@:${INITRD_OPTIONS_START}}" ) + +for initrd in "${INITRD_OPTIONS[@]}"; do + if [[ -f "${initrd}" ]]; then + initrd_basename="$(basename ${initrd})" + cp "${initrd}" "$BOOT_DIR_ABS/${initrd_basename}" && + chown root:root "$BOOT_DIR_ABS/${initrd_basename}" && + chmod 0644 "$BOOT_DIR_ABS/${initrd_basename}" || { + echo "Could not copy '${initrd}' to '$BOOT_DIR_ABS/${initrd_basename}'." >&2 + exit 1 + } + fi +done + +# If no initrd option is supplied, fallback 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 +} + +{ + echo "title $PRETTY_NAME" + echo "version $KERNEL_VERSION" + echo "machine-id $MACHINE_ID" + echo "options ${BOOT_OPTIONS[*]}" + echo "linux $BOOT_DIR/linux" + for initrd in "${INITRD_OPTIONS[@]}"; do + [[ -f $BOOT_DIR_ABS/$(basename ${initrd}) ]] && \ + echo "initrd $BOOT_DIR/$(basename ${initrd})" + done + : +} > "$LOADER_ENTRY" || { + echo "Could not create loader entry '$LOADER_ENTRY'." >&2 + exit 1 +} +exit 0 diff --git a/src/kernel-install/kernel-install b/src/kernel-install/kernel-install new file mode 100644 index 0000000..b85c7c5 --- /dev/null +++ b/src/kernel-install/kernel-install @@ -0,0 +1,171 @@ +#!/bin/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+ +# +# 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/>. + +SKIP_REMAINING=77 + +usage() +{ + echo "Usage:" + echo " $0 add KERNEL-VERSION KERNEL-IMAGE [INITRD-FILE ...]" + echo " $0 remove KERNEL-VERSION" +} + +dropindirs_sort() +{ + local suffix=$1; shift + local -a files + local f d i + + readarray -t files <<<"$( + for d in "$@"; do + for i in "$d/"*"$suffix"; do + if [[ -e "$i" ]]; then + echo "${i##*/}" + fi + done + done | sort -Vu + )" + + for f in "${files[@]}"; do + for d in "$@"; do + if [[ -e "$d/$f" ]]; then + echo "$d/$f" + continue 2 + fi + done + done +} + +export LC_COLLATE=C + +for i in "$@"; do + if [ "$i" == "--help" -o "$i" == "-h" ]; then + usage + exit 0 + fi +done + +if [[ "${0##*/}" == 'installkernel' ]]; then + COMMAND='add' + # make install doesn't pass any parameter wrt initrd handling + INITRD_OPTIONS=() +else + COMMAND="$1" + shift + INITRD_OPTIONS=( "${@:3}" ) +fi + +KERNEL_VERSION="$1" +KERNEL_IMAGE="$2" + +if [[ -f /etc/machine-id ]]; then + read MACHINE_ID < /etc/machine-id +fi + +if [[ ! $COMMAND ]] || [[ ! $KERNEL_VERSION ]]; then + echo "Not enough arguments" >&2 + exit 1 +fi + +if ! [[ $MACHINE_ID ]]; then + BOOT_DIR_ABS=$(mktemp -d /tmp/kernel-install.XXXXX) || exit 1 + trap "rm -rf '$BOOT_DIR_ABS'" EXIT INT QUIT PIPE +elif [[ -d /efi/loader/entries ]] || [[ -d /efi/$MACHINE_ID ]]; then + BOOT_DIR_ABS="/efi/$MACHINE_ID/$KERNEL_VERSION" +elif [[ -d /boot/loader/entries ]] || [[ -d /boot/$MACHINE_ID ]]; then + BOOT_DIR_ABS="/boot/$MACHINE_ID/$KERNEL_VERSION" +elif [[ -d /boot/efi/loader/entries ]] || [[ -d /boot/efi/$MACHINE_ID ]]; then + BOOT_DIR_ABS="/boot/efi/$MACHINE_ID/$KERNEL_VERSION" +elif mountpoint -q /efi; then + BOOT_DIR_ABS="/efi/$MACHINE_ID/$KERNEL_VERSION" +elif mountpoint -q /boot/efi; then + BOOT_DIR_ABS="/boot/efi/$MACHINE_ID/$KERNEL_VERSION" +else + BOOT_DIR_ABS="/boot/$MACHINE_ID/$KERNEL_VERSION" +fi + +export KERNEL_INSTALL_MACHINE_ID=$MACHINE_ID + +ret=0 + +readarray -t PLUGINS <<<"$( + dropindirs_sort ".install" \ + "/etc/kernel/install.d" \ + "/usr/lib/kernel/install.d" +)" + +case $COMMAND in + add) + if [[ ! "$KERNEL_IMAGE" ]]; then + echo "Command 'add' requires an argument" >&2 + exit 1 + fi + + mkdir -p "$BOOT_DIR_ABS" || { + echo "Could not create boot directory '$BOOT_DIR_ABS'." >&2 + exit 1 + } + + for f in "${PLUGINS[@]}"; do + if [[ -x $f ]]; then + "$f" add "$KERNEL_VERSION" "$BOOT_DIR_ABS" "$KERNEL_IMAGE" "${INITRD_OPTIONS[@]}" + x=$? + if [[ $x == $SKIP_REMAINING ]]; then + ret=0 + break + fi + ((ret+=$x)) + fi + done + + if ! [[ $MACHINE_ID ]] && ! rmdir "$BOOT_DIR_ABS"; then + echo "Warning: In kernel-install plugins, requiring BOOT_DIR_ABS to be preset is deprecated." >&2 + echo " All plugins should not put anything in BOOT_DIR_ABS if the environment" >&2 + echo " variable KERNEL_INSTALL_MACHINE_ID is empty." >&2 + rm -rf "$BOOT_DIR_ABS" + ((ret+=$?)) + fi + ;; + + remove) + for f in "${PLUGINS[@]}"; do + if [[ -x $f ]]; then + "$f" remove "$KERNEL_VERSION" "$BOOT_DIR_ABS" + x=$? + if [[ $x == $SKIP_REMAINING ]]; then + ret=0 + break + fi + ((ret+=$x)) + fi + done + + rm -rf "$BOOT_DIR_ABS" + ((ret+=$?)) + ;; + + *) + echo "Unknown command '$COMMAND'" >&2 + exit 1 + ;; +esac + +exit $ret diff --git a/src/kernel-install/meson.build b/src/kernel-install/meson.build new file mode 100644 index 0000000..c6e6f81 --- /dev/null +++ b/src/kernel-install/meson.build @@ -0,0 +1,13 @@ +# SPDX-License-Identifier: LGPL-2.1+ + +install_data('kernel-install', + install_mode : 'rwxr-xr-x', + install_dir : bindir) + +install_data('50-depmod.install', + '90-loaderentry.install', + install_mode : 'rwxr-xr-x', + install_dir : kernelinstalldir) + +meson.add_install_script('sh', '-c', + mkdir_p.format(join_paths(sysconfdir, 'kernel/install.d'))) |