124 lines
3.4 KiB
Bash
124 lines
3.4 KiB
Bash
#!/usr/bin/env 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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ENTRY_DIR_ABS="$3"
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KERNEL_IMAGE="$4"
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INITRD_OPTIONS_START="5"
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if ! [[ $KERNEL_INSTALL_MACHINE_ID ]]; then
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exit 0
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fi
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if ! [[ -d "$ENTRY_DIR_ABS" ]]; then
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exit 0
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fi
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MACHINE_ID=$KERNEL_INSTALL_MACHINE_ID
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ENTRY_DIR="/$MACHINE_ID/$KERNEL_VERSION"
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BOOT_ROOT=${ENTRY_DIR_ABS%$ENTRY_DIR}
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if [[ $COMMAND == remove ]]; then
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rm -f "$BOOT_ROOT/loader/entries/$MACHINE_ID-$KERNEL_VERSION.conf"
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rm -f "$BOOT_ROOT/loader/entries/$MACHINE_ID-$KERNEL_VERSION+"*".conf"
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exit 0
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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 $KERNEL_VERSION"
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fi
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if [[ -f /etc/kernel/cmdline ]]; then
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read -r -d '' -a BOOT_OPTIONS < /etc/kernel/cmdline
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elif [[ -f /usr/lib/kernel/cmdline ]]; then
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read -r -d '' -a BOOT_OPTIONS < /usr/lib/kernel/cmdline
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else
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declare -a BOOT_OPTIONS
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read -r -d '' -a line < /proc/cmdline
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for i in "${line[@]}"; do
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[[ "${i#initrd=*}" != "$i" ]] && continue
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[[ "${i#BOOT_IMAGE=*}" != "$i" ]] && continue
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BOOT_OPTIONS+=("$i")
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done
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fi
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if [[ -f /etc/kernel/tries ]]; then
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read -r TRIES </etc/kernel/tries
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if ! [[ "$TRIES" =~ ^[0-9]+$ ]] ; then
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echo "/etc/kernel/tries does not contain an integer." >&2
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exit 1
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fi
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LOADER_ENTRY="$BOOT_ROOT/loader/entries/$MACHINE_ID-$KERNEL_VERSION+$TRIES.conf"
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else
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LOADER_ENTRY="$BOOT_ROOT/loader/entries/$MACHINE_ID-$KERNEL_VERSION.conf"
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fi
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cp "$KERNEL_IMAGE" "$ENTRY_DIR_ABS/linux" &&
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chown root:root "$ENTRY_DIR_ABS/linux" &&
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chmod 0644 "$ENTRY_DIR_ABS/linux" || {
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echo "Could not copy '$KERNEL_IMAGE to '$ENTRY_DIR_ABS/linux'." >&2
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exit 1
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}
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INITRD_OPTIONS=( "${@:${INITRD_OPTIONS_START}}" )
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for initrd in "${INITRD_OPTIONS[@]}"; do
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if [[ -f "${initrd}" ]]; then
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initrd_basename="$(basename ${initrd})"
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[ "$KERNEL_INSTALL_VERBOSE" -gt 0 ] && \
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echo "Installing $ENTRY_DIR_ABS/${initrd_basename}"
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cp "${initrd}" "$ENTRY_DIR_ABS/${initrd_basename}" &&
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chown root:root "$ENTRY_DIR_ABS/${initrd_basename}" &&
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chmod 0644 "$ENTRY_DIR_ABS/${initrd_basename}" || {
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echo "Could not copy '${initrd}' to '$ENTRY_DIR_ABS/${initrd_basename}'." >&2
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exit 1
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}
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fi
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done
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# If no initrd option is supplied, fallback to "initrd" which is
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# the name used by dracut when generating it in its kernel-install hook
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[[ ${#INITRD_OPTIONS[@]} == 0 ]] && INITRD_OPTIONS=( initrd )
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mkdir -p "${LOADER_ENTRY%/*}" || {
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echo "Could not create loader entry directory '${LOADER_ENTRY%/*}'." >&2
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exit 1
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}
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[ "$KERNEL_INSTALL_VERBOSE" -gt 0 ] && \
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echo "Creating $LOADER_ENTRY"
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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 $ENTRY_DIR/linux"
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for initrd in "${INITRD_OPTIONS[@]}"; do
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[[ -f $ENTRY_DIR_ABS/$(basename ${initrd}) ]] && \
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echo "initrd $ENTRY_DIR/$(basename ${initrd})"
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done
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:
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} > "$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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