90 lines
2.0 KiB
Plaintext
90 lines
2.0 KiB
Plaintext
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#!/bin/bash
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# -*- mode: shell-script; indent-tabs-mode: nil; sh-basic-offset: 4; -*-
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# ex: ts=8 sw=4 sts=4 et filetype=sh
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COMMAND="$1"
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KERNEL_VERSION="$2"
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BOOT_DIR_ABS="$3"
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KERNEL_IMAGE="$4"
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if [[ -f /etc/machine-id ]]; then
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read MACHINE_ID < /etc/machine-id
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fi
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if ! [[ $MACHINE_ID ]]; then
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exit 1
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fi
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BOOT_DIR="/$MACHINE_ID/$KERNEL_VERSION"
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LOADER_ENTRY="/boot/loader/entries/$MACHINE_ID-$KERNEL_VERSION.conf"
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if [[ $COMMAND == remove ]]; then
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exec rm -f "$LOADER_ENTRY"
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fi
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if ! [[ $COMMAND == add ]]; then
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exit 1
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fi
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if ! [[ $KERNEL_IMAGE ]]; then
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exit 1
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fi
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if [[ -f /etc/os-release ]]; then
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. /etc/os-release
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elif [[ -f /usr/lib/os-release ]]; then
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. /usr/lib/os-release
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fi
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if ! [[ $PRETTY_NAME ]]; then
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PRETTY_NAME="Linux $KERNEL_VERSION"
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fi
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declare -a BOOT_OPTIONS
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if [[ -f /etc/kernel/cmdline ]]; then
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readarray -t BOOT_OPTIONS < /etc/kernel/cmdline
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fi
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if ! [[ ${BOOT_OPTIONS[*]} ]]; then
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readarray -t line < /proc/cmdline
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for i in ${line[*]}; do
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if [[ "${i#initrd=*}" == "$i" ]]; then
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BOOT_OPTIONS[${#BOOT_OPTIONS[@]}]="$i"
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fi
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done
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fi
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if ! [[ ${BOOT_OPTIONS[*]} ]]; then
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echo "Could not determine the kernel command line parameters." >&2
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echo "Please specify the kernel command line in /etc/kernel/cmdline!" >&2
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exit 1
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fi
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cp "$KERNEL_IMAGE" "$BOOT_DIR_ABS/linux" &&
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chown root:root "$BOOT_DIR_ABS/linux" &&
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chmod 0644 "$BOOT_DIR_ABS/linux" || {
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echo "Could not copy '$KERNEL_IMAGE to '$BOOT_DIR_ABS/linux'." >&2
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exit 1
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}
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mkdir -p "${LOADER_ENTRY%/*}" || {
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echo "Could not create loader entry directory '${LOADER_ENTRY%/*}'." >&2
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exit 1
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}
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{
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echo "title $PRETTY_NAME"
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echo "version $KERNEL_VERSION"
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echo "machine-id $MACHINE_ID"
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echo "options ${BOOT_OPTIONS[*]}"
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echo "linux $BOOT_DIR/linux"
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[[ -f $BOOT_DIR_ABS/initrd ]] && \
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echo "initrd $BOOT_DIR/initrd"
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:
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} > "$LOADER_ENTRY" || {
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echo "Could not create loader entry '$LOADER_ENTRY'." >&2
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exit 1
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}
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exit 0
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