#!/bin/bash
-# -*- mode: shell-script; indent-tabs-mode: nil; sh-basic-offset: 4; -*-
-# ex: ts=8 sw=4 sts=4 et filetype=sh
export LANG=C
COMMAND="$1"
KERNEL_VERSION="$2"
+BOOT_DIR_ABS="${3%/*}/0-rescue"
+KERNEL_IMAGE="$4"
+
dropindirs_sort()
{
}
[[ -f /etc/os-release ]] && . /etc/os-release
-[[ -f /etc/machine-id ]] && read MACHINE_ID < /etc/machine-id
+
+if [[ ${KERNEL_INSTALL_MACHINE_ID+x} ]]; then
+ MACHINE_ID=$KERNEL_INSTALL_MACHINE_ID
+elif [[ -f /etc/machine-id ]] ; then
+ read MACHINE_ID < /etc/machine-id
+fi
+
+if ! [[ $MACHINE_ID ]]; then
+ exit 0
+fi
+
if [[ -f /etc/kernel/cmdline ]]; then
- readarray -t BOOT_OPTIONS < /etc/kernel/cmdline
+ read -r -d '' -a BOOT_OPTIONS < /etc/kernel/cmdline
+elif [[ -f /usr/lib/kernel/cmdline ]]; then
+ read -r -d '' -a BOOT_OPTIONS < /usr/lib/kernel/cmdline
fi
+
if ! [[ "${BOOT_OPTIONS[@]}" ]]; then
- readarray -t BOOT_OPTIONS < /proc/cmdline
+ 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
+
+if ! [[ ${BOOT_OPTIONS[*]} ]]; then
+ echo "Could not determine the kernel command line parameters." >&2
+ echo "Please specify the kernel command line in /etc/kernel/cmdline!" >&2
exit 1
fi
-LOADER_ENTRY="/boot/loader/entries/${MACHINE_ID}-0-rescue.conf"
-BOOT_DIR="/${MACHINE_ID}/0-rescue"
-BOOT_DIR_ABS="/boot${BOOT_DIR}"
+if [[ -d "${BOOT_DIR_ABS%/*}" ]]; then
+ BOOT_DIR="/${MACHINE_ID}/0-rescue"
+ BOOT_ROOT=${BOOT_DIR_ABS%$BOOT_DIR}
+ LOADER_ENTRY="$BOOT_ROOT/loader/entries/${MACHINE_ID}-0-rescue.conf"
+ KERNEL="linux"
+ INITRD="initrd"
+else
+ BLS_DIR="/boot/loader/entries"
+ BOOT_DIR_ABS="/boot"
+ LOADER_ENTRY="$BLS_DIR/${MACHINE_ID}-0-rescue.conf"
+ KERNEL="vmlinuz-0-rescue-${MACHINE_ID}"
+ INITRD="initramfs-0-rescue-${MACHINE_ID}.img"
+fi
ret=0
case "$COMMAND" in
add)
- for i in "/boot/loader/entries/${MACHINE_ID}-0-rescue.conf"; do
- [[ -f $i ]] && exit 0
- done
+ [[ -f "$LOADER_ENTRY" ]] && [[ -f "$BOOT_DIR_ABS/$KERNEL" ]] \
+ && [[ -f "$BOOT_DIR_ABS/$INITRD" ]] && exit 0
# source our config dir
for f in $(dropindirs_sort ".conf" "/etc/dracut.conf.d" "/usr/lib/dracut/dracut.conf.d"); do
[[ -d "$BOOT_DIR_ABS" ]] || mkdir -p "$BOOT_DIR_ABS"
- if ! cp "$KERNEL_IMAGE" "$BOOT_DIR_ABS"/linux; then
- echo "Can't copy '$KERNEL_IMAGE to '$BOOT_DIR_ABS/linux'!" >&2
+ if ! cp --reflink=auto "$KERNEL_IMAGE" "$BOOT_DIR_ABS/$KERNEL"; then
+ echo "Can't copy '$KERNEL_IMAGE to '$BOOT_DIR_ABS/$KERNEL'!" >&2
fi
- dracut --no-hostonly -a "rescue" "$BOOT_DIR_ABS"/initrd "$2"
- ((ret+=$?))
+ if [[ ! -f "$BOOT_DIR_ABS/$INITRD" ]]; then
+ dracut -f --no-hostonly -a "rescue" "$BOOT_DIR_ABS/$INITRD" "$KERNEL_VERSION"
+ ((ret+=$?))
+ fi
+
+ if [[ "${BOOT_DIR_ABS}" != "/boot" ]]; then
+ {
+ echo "title $PRETTY_NAME - Rescue Image"
+ echo "version $KERNEL_VERSION"
+ echo "machine-id $MACHINE_ID"
+ echo "options ${BOOT_OPTIONS[@]} rd.auto=1"
+ echo "linux $BOOT_DIR/linux"
+ echo "initrd $BOOT_DIR/initrd"
+ } > $LOADER_ENTRY
+ else
+ cp -aT "${KERNEL_IMAGE%/*}/bls.conf" $LOADER_ENTRY
+ sed -i 's/'$KERNEL_VERSION'/0-rescue-'${MACHINE_ID}'/' $LOADER_ENTRY
+ fi
- {
- echo "title $PRETTY_NAME - Rescue Image"
- echo "version $KERNEL_VERSION"
- echo "machine-id $MACHINE_ID"
- echo "options ${BOOT_OPTIONS[@]} rd.auto=1"
- echo "linux $BOOT_DIR/linux"
- echo "initrd $BOOT_DIR/initrd"
- } > $LOADER_ENTRY
((ret+=$?))
;;
ret=1;;
esac
-((ret+=$?))
-
exit $ret