173 lines
5.7 KiB
Bash
Executable File
173 lines
5.7 KiB
Bash
Executable File
#!/bin/sh
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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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# SPDX-License-Identifier: LGPL-2.1-or-later
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#
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# This file is part of systemd.
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#
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# systemd is free software; you can redistribute it and/or modify it
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# under the terms of the GNU Lesser General Public License as published by
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# the Free Software Foundation; either version 2.1 of the License, or
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# (at your option) any later version.
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#
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# systemd is distributed in the hope that it will be useful, but
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# WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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# General Public License for more details.
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#
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# You should have received a copy of the GNU Lesser General Public License
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# along with systemd; If not, see <https://www.gnu.org/licenses/>.
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set -e
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COMMAND="${1:?}"
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KERNEL_VERSION="${2:?}"
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ENTRY_DIR_ABS="${3:?}"
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KERNEL_IMAGE="$4"
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INITRD_OPTIONS_SHIFT=4
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[ "$KERNEL_INSTALL_LAYOUT" = "bls" ] || exit 0
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MACHINE_ID="${KERNEL_INSTALL_MACHINE_ID:?}"
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ENTRY_TOKEN="${KERNEL_INSTALL_ENTRY_TOKEN:?}"
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BOOT_ROOT="${KERNEL_INSTALL_BOOT_ROOT:?}"
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[ -n "$BOOT_MNT" ] || BOOT_MNT="$(stat -c %m "$BOOT_ROOT")"
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if [ "$BOOT_MNT" = '/' ]; then
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ENTRY_DIR="$ENTRY_DIR_ABS"
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else
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ENTRY_DIR="${ENTRY_DIR_ABS#"$BOOT_MNT"}"
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fi
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KERNEL_DEST="$ENTRY_DIR_ABS/linux"
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KERNEL_ENTRY="$ENTRY_DIR/linux"
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LOADER_ENTRY="$BOOT_ROOT/loader/entries/$ENTRY_TOKEN-$KERNEL_VERSION.conf"
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case "$COMMAND" in
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remove)
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[ "$KERNEL_INSTALL_VERBOSE" -gt 0 ] && \
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echo "Removing ${LOADER_ENTRY%.conf}*.conf"
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exec rm -f \
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"$LOADER_ENTRY" \
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"${LOADER_ENTRY%.conf}"*".conf"
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;;
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add)
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;;
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*)
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exit 0
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;;
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esac
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if [ -f /etc/os-release ]; then
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# shellcheck source=/dev/null
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. /etc/os-release
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elif [ -f /usr/lib/os-release ]; then
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# shellcheck source=/dev/null
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. /usr/lib/os-release
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fi
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[ -n "$PRETTY_NAME" ] || PRETTY_NAME="Linux $KERNEL_VERSION"
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SORT_KEY="$IMAGE_ID"
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[ -z "$SORT_KEY" ] && SORT_KEY="$ID-$KERNEL_VERSION"
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if [ -n "$KERNEL_INSTALL_CONF_ROOT" ]; then
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if [ -f "$KERNEL_INSTALL_CONF_ROOT/cmdline" ]; then
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BOOT_OPTIONS="$(tr -s "$IFS" ' ' <"$KERNEL_INSTALL_CONF_ROOT/cmdline")"
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fi
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elif [ -f /etc/kernel/cmdline ]; then
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BOOT_OPTIONS="$(tr -s "$IFS" ' ' </etc/kernel/cmdline)"
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elif [ -f /usr/lib/kernel/cmdline ]; then
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BOOT_OPTIONS="$(tr -s "$IFS" ' ' </usr/lib/kernel/cmdline)"
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else
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BOOT_OPTIONS="$(tr -s "$IFS" '\n' </proc/cmdline | grep -ve '^BOOT_IMAGE=' -e '^initrd=' | tr '\n' ' ')"
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fi
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BOOT_OPTIONS="${BOOT_OPTIONS% }"
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# If the boot entries are named after the machine ID, then suffix the kernel
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# command line with the machine ID we use, so that the machine ID remains
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# stable, even during factory reset, in the initrd (where the system's machine
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# ID is not directly accessible yet), and if the root file system is volatile.
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if [ "$ENTRY_TOKEN" = "$MACHINE_ID" ] && ! echo "$BOOT_OPTIONS" | grep -q "systemd.machine_id="; then
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BOOT_OPTIONS="$BOOT_OPTIONS systemd.machine_id=$MACHINE_ID"
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fi
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TRIES_FILE="${KERNEL_INSTALL_CONF_ROOT:-/etc/kernel}/tries"
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if [ -f "$TRIES_FILE" ]; then
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read -r TRIES <"$TRIES_FILE"
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if ! echo "$TRIES" | grep -q '^[0-9][0-9]*$'; then
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echo "$TRIES_FILE does not contain an integer." >&2
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exit 1
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fi
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LOADER_ENTRY="${LOADER_ENTRY%.conf}+$TRIES.conf"
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fi
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if ! [ -d "$ENTRY_DIR_ABS" ]; then
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echo "Error: entry directory '$ENTRY_DIR_ABS' does not exist" >&2
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exit 1
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fi
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install -m 0644 "$KERNEL_IMAGE" "$KERNEL_DEST" || {
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echo "Error: could not copy '$KERNEL_IMAGE' to '$KERNEL_DEST'." >&2
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exit 1
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}
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chown root:root "$KERNEL_DEST" || :
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shift "$INITRD_OPTIONS_SHIFT"
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# All files listed as arguments, and staged files starting with "initrd" are installed as initrds.
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for initrd in "${KERNEL_INSTALL_STAGING_AREA}"/microcode* "${@}" "${KERNEL_INSTALL_STAGING_AREA}"/initrd*; do
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[ -f "$initrd" ] || {
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case "$initrd" in
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"${KERNEL_INSTALL_STAGING_AREA}/initrd*" | "${KERNEL_INSTALL_STAGING_AREA}/microcode*")
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continue ;;
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esac
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echo "Error: '$initrd' is not a file." >&2
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exit 1
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}
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initrd_basename="${initrd##*/}"
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[ "$KERNEL_INSTALL_VERBOSE" -gt 0 ] && echo "Installing $ENTRY_DIR_ABS/$initrd_basename"
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install -m 0644 "$initrd" "$ENTRY_DIR_ABS/$initrd_basename" || {
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echo "Error: could not copy '$initrd' to '$ENTRY_DIR_ABS/$initrd_basename'." >&2
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exit 1
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}
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chown root:root "$ENTRY_DIR_ABS/$initrd_basename" || :
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done
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mkdir -p "${LOADER_ENTRY%/*}" || {
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echo "Error: could not create loader entry directory '${LOADER_ENTRY%/*}'." >&2
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exit 1
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}
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[ "$KERNEL_INSTALL_VERBOSE" -gt 0 ] && echo "Creating $LOADER_ENTRY"
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{
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echo "# Boot Loader Specification type#1 entry"
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echo "# File created by $0 (systemd 254.1-1-arch)"
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echo "title $PRETTY_NAME"
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echo "version $KERNEL_VERSION"
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if [ "$ENTRY_TOKEN" = "$MACHINE_ID" ]; then
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# See similar logic above for the systemd.machine_id= kernel command line option
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echo "machine-id $MACHINE_ID"
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fi
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[ -n "$SORT_KEY" ] && echo "sort-key $SORT_KEY"
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echo "options $BOOT_OPTIONS"
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echo "linux $KERNEL_ENTRY"
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have_initrd=
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for initrd in "${KERNEL_INSTALL_STAGING_AREA}"/microcode* "${@}" "${KERNEL_INSTALL_STAGING_AREA}"/initrd* "${ENTRY_DIR_ABS}/initrd"; do
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[ -f "$initrd" ] || continue
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echo "initrd $ENTRY_DIR/${initrd##*/}"
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have_initrd=yes
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done
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# Try "initrd", generated by dracut in its kernel-install hook, if no initrds were supplied
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[ -z "$have_initrd" ] && [ -f "$ENTRY_DIR_ABS/initrd" ] && echo "initrd $ENTRY_DIR/initrd"
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:
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} >"$LOADER_ENTRY" || {
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echo "Error: 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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