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synced 2024-11-30 13:53:39 +08:00
kernel-install: add default install scripts
Do the depmod in the kernel-install hooks, so hooks can produce/install kernel modules and be part of the depmod. Also move the basic boot loader entry creation and removal to a plugin script. If PRETTY_NAME is not defined in /etc/os-release, fallback to PRETTY_NAME="Linux $KERNEL_VERSION". Add documentation for everything in the man page.
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@ -90,6 +90,7 @@ udevhomedir=$(udevlibexecdir)
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udevrulesdir=$(udevlibexecdir)/rules.d
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udevhwdbdir=$(udevlibexecdir)/hwdb.d
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catalogdir=$(prefix)/lib/systemd/catalog
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kernelinstalldir = $(prefix)/lib/kernel/install.d
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# And these are the special ones for /
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rootprefix=@rootprefix@
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@ -291,11 +292,12 @@ bin_PROGRAMS = \
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systemd-delta \
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systemd-analyze
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bin_SCRIPTS = \
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dist_bin_SCRIPTS = \
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src/kernel-install/kernel-install
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EXTRA_DIST += \
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src/kernel-install/kernel-install
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dist_kernelinstall_SCRIPTS = \
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src/kernel-install/50-depmod.install \
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src/kernel-install/90-loaderentry.install
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rootlibexec_PROGRAMS = \
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systemd \
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@ -84,7 +84,9 @@ along with systemd; If not, see <http://www.gnu.org/licenses/>.
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<varlistentry>
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<term><command>add <replaceable>KERNEL-VERSION</replaceable> <replaceable>KERNEL-IMAGE</replaceable></command></term>
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<listitem>
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<para>calls every executable
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<para><command>kernel-install</command> creates the directory
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<filename>/boot/<replaceable>MACHINE-ID</replaceable>/<replaceable>KERNEL-VERSION</replaceable>/</filename>
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and calls every executable
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<filename>/usr/lib/kernel/install.d/*.install</filename> and
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<filename>/etc/kernel/install.d/*.install</filename> with
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the arguments
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@ -93,21 +95,22 @@ add <replaceable>KERNEL-VERSION</replaceable> <filename>/boot/<replaceable>MACHI
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</programlisting>
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</para>
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<para><command>kernel-install</command> copies
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<para>The kernel-install plugin <filename>50-depmod.install</filename> runs depmod for the <replaceable>KERNEL-VERSION</replaceable>.</para>
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<para>The kernel-install plugin <filename>90-loaderentry.install</filename> copies
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<replaceable>KERNEL-IMAGE</replaceable> to
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<filename>/boot/<replaceable>MACHINE-ID</replaceable>/<replaceable>KERNEL-VERSION</replaceable>/linux</filename>.
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</para>
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<para><command>kernel-install</command> also creates a boot
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loader entry according to the boot loader specification in
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It also creates a boot loader entry according to the boot loader specification in
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<filename>/boot/loader/entries/<replaceable>MACHINE-ID</replaceable>-<replaceable>KERNEL-VERSION</replaceable>.conf</filename>.
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The title of the entry is the <replaceable>PRETTY_NAME</replaceable> parameter specified in <filename>/etc/os-release</filename>,
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or "Linux <replaceable>KERNEL-VERSION</replaceable>", if unset.
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If the file <filename>initrd</filename> is found next to the
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<filename>linux</filename> file, the initrd will be added to
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the configuration.</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term><command>remove</command> <replaceable>KERNEL-VERSION</replaceable> <replaceable>KERNEL-IMAGE</replaceable></term>
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<term><command>remove <replaceable>KERNEL-VERSION</replaceable></command></term>
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<listitem>
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<para>calls every executable <filename>/usr/lib/kernel/install.d/*.install</filename>
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and <filename>/etc/kernel/install.d/*.install</filename> with the arguments
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@ -117,9 +120,10 @@ remove <replaceable>KERNEL-VERSION</replaceable> <filename>/boot/<replaceable>MA
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</para>
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<para><command>kernel-install</command> removes the entire directory
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<filename>/boot/<replaceable>MACHINE-ID</replaceable>/<replaceable>KERNEL-VERSION</replaceable>/</filename>
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and the file
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<filename>/boot/loader/entries/<replaceable>MACHINE-ID</replaceable>-<replaceable>KERNEL-VERSION</replaceable>.conf</filename></para>
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<filename>/boot/<replaceable>MACHINE-ID</replaceable>/<replaceable>KERNEL-VERSION</replaceable>/</filename> afterwards.</para>
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<para>The kernel-install plugin <filename>90-loaderentry.install</filename> removes the file
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<filename>/boot/loader/entries/<replaceable>MACHINE-ID</replaceable>-<replaceable>KERNEL-VERSION</replaceable>.conf</filename>.</para>
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</listitem>
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</varlistentry>
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@ -167,7 +171,7 @@ remove <replaceable>KERNEL-VERSION</replaceable> <filename>/boot/<replaceable>MA
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<filename>/etc/os-release</filename>
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</term>
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<listitem>
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<para>The content of the file specifies the operating system id <replaceable>OS-ID</replaceable>.</para>
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<para>The content of the file specifies the operating system title <replaceable>PRETTY_NAME</replaceable>.</para>
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</listitem>
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</varlistentry>
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</variablelist>
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8
src/kernel-install/50-depmod.install
Normal file
8
src/kernel-install/50-depmod.install
Normal file
@ -0,0 +1,8 @@
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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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[[ $1 == "add" ]] || exit 0
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[[ $2 ]] || exit 1
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exec depmod -a "$2"
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77
src/kernel-install/90-loaderentry.install
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77
src/kernel-install/90-loaderentry.install
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@ -0,0 +1,77 @@
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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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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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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 BOOT_OPTIONS < /proc/cmdline
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fi
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if ! [[ $BOOT_OPTIONS ]]; then
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echo "Could not determine the kernel command line parameters." >&2
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echo "Please specify the kernel command line in /etc/kernel/cmdline!" >&2
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exit 1
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fi
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cp --preserve "$KERNEL_IMAGE" "$BOOT_DIR_ABS/linux" || {
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echo "Could not copy '$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 $BOOT_DIR/initrd"
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} > "$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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@ -58,16 +58,6 @@ COMMAND="$1"
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KERNEL_VERSION="$2"
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KERNEL_IMAGE="$3"
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if [[ -f /etc/os-release ]]; then
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. /etc/os-release
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fi
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if ! [[ $ID ]]; then
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echo "Could not determine the distribution name from /etc/os-release." >&2
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echo "Please specify ID=... in /etc/os-release. See man:os-release(5)" >&2
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exit 1
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fi
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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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@ -78,28 +68,12 @@ if ! [[ $MACHINE_ID ]]; then
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exit 1
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fi
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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 BOOT_OPTIONS < /proc/cmdline
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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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if [[ ! $COMMAND ]] || [[ ! $KERNEL_VERSION ]]; then
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usage
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exit 1
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fi
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BOOT_DIR="/$MACHINE_ID/$KERNEL_VERSION"
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BOOT_DIR_ABS="/boot$BOOT_DIR"
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LOADER_ENTRY="/boot/loader/entries/$MACHINE_ID-$KERNEL_VERSION.conf"
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BOOT_DIR_ABS="/boot/$MACHINE_ID/$KERNEL_VERSION"
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ret=0
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readarray -t PLUGINS < <(
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@ -121,41 +95,23 @@ case $COMMAND in
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}
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for f in "${PLUGINS[@]}"; do
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[[ -x $f ]] && "$f" add "$KERNEL_VERSION" "$BOOT_DIR_ABS"
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((ret+=$?))
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if [[ -x $f ]]; then
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"$f" add "$KERNEL_VERSION" "$BOOT_DIR_ABS" "$KERNEL_IMAGE"
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((ret+=$?))
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fi
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done
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cp --preserve "$KERNEL_IMAGE" "$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 $BOOT_DIR/initrd"
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} > "$LOADER_ENTRY" || {
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echo "Could not create loader entry '$LOADER_ENTRY'." >&2
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exit 1
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}
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;;
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remove)
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for f in "${PLUGINS[@]}"; do
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[[ -x $f ]] && "$f" remove "$KERNEL_VERSION" "$BOOT_DIR_ABS"
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((ret+=$?))
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if [[ -x $f ]]; then
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"$f" remove "$KERNEL_VERSION" "$BOOT_DIR_ABS"
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((ret+=$?))
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fi
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done
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rm -rf "$LOADER_ENTRY" "$BOOT_DIR_ABS"
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rm -rf "$BOOT_DIR_ABS"
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((ret+=$?))
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;;
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*)
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@ -164,6 +120,4 @@ case $COMMAND in
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;;
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esac
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((ret+=$?))
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exit $ret
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