summaryrefslogtreecommitdiffstats
path: root/src/kernel-install/90-loaderentry.install
diff options
context:
space:
mode:
authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-05-06 02:25:50 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-05-06 02:25:50 +0000
commit19f4f86bfed21c5326ed2acebe1163f3a83e832b (patch)
treed59b9989ce55ed23693e80974d94c856f1c2c8b1 /src/kernel-install/90-loaderentry.install
parentInitial commit. (diff)
downloadsystemd-19f4f86bfed21c5326ed2acebe1163f3a83e832b.tar.xz
systemd-19f4f86bfed21c5326ed2acebe1163f3a83e832b.zip
Adding upstream version 241.upstream/241upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'src/kernel-install/90-loaderentry.install')
-rw-r--r--src/kernel-install/90-loaderentry.install124
1 files changed, 124 insertions, 0 deletions
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