mirror of
https://github.com/systemd/systemd.git
synced 2024-11-01 09:21:26 +03:00
199 lines
8.4 KiB
XML
199 lines
8.4 KiB
XML
<?xml version='1.0'?> <!--*- Mode: nxml; nxml-child-indent: 2; indent-tabs-mode: nil -*-->
|
|
<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
|
|
"http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
|
|
|
|
<!--
|
|
SPDX-License-Identifier: LGPL-2.1+
|
|
|
|
This file is part of systemd.
|
|
|
|
Copyright 2013 Harald Hoyer
|
|
|
|
systemd is free software; you can redistribute it and/or modify it
|
|
under the terms of the GNU Lesser General Public License as published by
|
|
the Free Software Foundation; either version 2.1 of the License, or
|
|
(at your option) any later version.
|
|
|
|
systemd is distributed in the hope that it will be useful, but
|
|
WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
Lesser General Public License for more details.
|
|
|
|
You should have received a copy of the GNU Lesser General Public License
|
|
along with systemd; If not, see <http://www.gnu.org/licenses/>.
|
|
-->
|
|
|
|
<refentry id="kernel-install">
|
|
|
|
<refentryinfo>
|
|
<title>kernel-install</title>
|
|
<productname>systemd</productname>
|
|
|
|
<authorgroup>
|
|
<author>
|
|
<contrib>Developer</contrib>
|
|
<firstname>Harald</firstname>
|
|
<surname>Hoyer</surname>
|
|
<email>harald@redhat.com</email>
|
|
</author>
|
|
</authorgroup>
|
|
</refentryinfo>
|
|
|
|
<refmeta>
|
|
<refentrytitle>kernel-install</refentrytitle>
|
|
<manvolnum>8</manvolnum>
|
|
</refmeta>
|
|
|
|
<refnamediv>
|
|
<refname>kernel-install</refname>
|
|
<refpurpose>Add and remove kernel and initramfs images to and from /boot</refpurpose>
|
|
</refnamediv>
|
|
|
|
<refsynopsisdiv>
|
|
<cmdsynopsis>
|
|
<command>kernel-install</command>
|
|
<arg choice="plain">COMMAND</arg>
|
|
<arg choice="plain"><replaceable>KERNEL-VERSION</replaceable></arg>
|
|
<arg choice="opt"><replaceable>KERNEL-IMAGE</replaceable></arg>
|
|
</cmdsynopsis>
|
|
</refsynopsisdiv>
|
|
|
|
<refsect1>
|
|
<title>Description</title>
|
|
<para>
|
|
<command>kernel-install</command> is used to install and remove kernel and
|
|
initramfs images to and from <filename>/boot</filename>.
|
|
</para>
|
|
|
|
<para><command>kernel-install</command> will execute the files
|
|
located in the directory <filename>/usr/lib/kernel/install.d/</filename>
|
|
and the local administration directory <filename>/etc/kernel/install.d/</filename>.
|
|
All files are collectively sorted and executed in lexical order, regardless of the directory in
|
|
which they live. However, files with identical filenames replace each other.
|
|
Files in <filename>/etc/kernel/install.d/</filename> take precedence over files with the same name
|
|
in <filename>/usr/lib/kernel/install.d/</filename>. This can be used to override a system-supplied
|
|
executables with a local file if needed; a symbolic link in <filename>/etc/kernel/install.d/</filename>
|
|
with the same name as an executable in <filename>/usr/lib/kernel/install.d/</filename>,
|
|
pointing to <filename>/dev/null</filename>, disables the executable entirely. Executables must have the
|
|
extension <literal>.install</literal>; other extensions are ignored.</para>
|
|
|
|
<para>An executable should return <constant>0</constant> on success. It may also
|
|
return <constant>77</constant> to cause the whole operation to terminate
|
|
(executables later in lexical order will be skipped).</para>
|
|
</refsect1>
|
|
|
|
<refsect1>
|
|
<title>Commands</title>
|
|
<para>The following commands are understood:</para>
|
|
<variablelist>
|
|
<varlistentry>
|
|
<term><command>add <replaceable>KERNEL-VERSION</replaceable> <replaceable>KERNEL-IMAGE</replaceable></command></term>
|
|
<listitem>
|
|
<para><command>kernel-install</command> creates the directory
|
|
<filename>/boot/<replaceable>MACHINE-ID</replaceable>/<replaceable>KERNEL-VERSION</replaceable>/</filename>
|
|
and calls executables from
|
|
<filename>/usr/lib/kernel/install.d/*.install</filename> and
|
|
<filename>/etc/kernel/install.d/*.install</filename> with
|
|
the arguments
|
|
<programlisting>add <replaceable>KERNEL-VERSION</replaceable> \
|
|
<filename>/boot/<replaceable>MACHINE-ID</replaceable>/<replaceable>KERNEL-VERSION</replaceable>/</filename> <replaceable>KERNEL-IMAGE</replaceable></programlisting>
|
|
</para>
|
|
|
|
<para>The kernel-install plugin <filename>50-depmod.install</filename> runs depmod for the <replaceable>KERNEL-VERSION</replaceable>.</para>
|
|
|
|
<para>The kernel-install plugin
|
|
<filename>90-loaderentry.install</filename> copies
|
|
<replaceable>KERNEL-IMAGE</replaceable> to
|
|
<filename>/boot/<replaceable>MACHINE-ID</replaceable>/<replaceable>KERNEL-VERSION</replaceable>/linux</filename>.
|
|
It also creates a boot loader entry according to the boot
|
|
loader specification in
|
|
<filename>/boot/loader/entries/<replaceable>MACHINE-ID</replaceable>-<replaceable>KERNEL-VERSION</replaceable>.conf</filename>.
|
|
The title of the entry is the
|
|
<replaceable>PRETTY_NAME</replaceable> parameter specified
|
|
in <filename>/etc/os-release</filename> or
|
|
<filename>/usr/lib/os-release</filename> (if the former is
|
|
missing), or "Linux
|
|
<replaceable>KERNEL-VERSION</replaceable>", if unset. If
|
|
the file <filename>initrd</filename> is found next to the
|
|
<filename>linux</filename> file, the initrd will be added to
|
|
the configuration.</para>
|
|
</listitem>
|
|
</varlistentry>
|
|
<varlistentry>
|
|
<term><command>remove <replaceable>KERNEL-VERSION</replaceable></command></term>
|
|
<listitem>
|
|
<para>Calls executables from <filename>/usr/lib/kernel/install.d/*.install</filename>
|
|
and <filename>/etc/kernel/install.d/*.install</filename> with the arguments
|
|
<programlisting>remove <replaceable>KERNEL-VERSION</replaceable> <filename>/boot/<replaceable>MACHINE-ID</replaceable>/<replaceable>KERNEL-VERSION</replaceable>/</filename></programlisting>
|
|
</para>
|
|
|
|
<para><command>kernel-install</command> removes the entire directory
|
|
<filename>/boot/<replaceable>MACHINE-ID</replaceable>/<replaceable>KERNEL-VERSION</replaceable>/</filename> afterwards.</para>
|
|
|
|
<para>The kernel-install plugin <filename>90-loaderentry.install</filename> removes the file
|
|
<filename>/boot/loader/entries/<replaceable>MACHINE-ID</replaceable>-<replaceable>KERNEL-VERSION</replaceable>.conf</filename>.</para>
|
|
</listitem>
|
|
</varlistentry>
|
|
|
|
</variablelist>
|
|
|
|
</refsect1>
|
|
|
|
<refsect1>
|
|
<title>Exit status</title>
|
|
<para>If every executable returns 0 or 77, 0 is returned, and a non-zero failure code otherwise.</para>
|
|
</refsect1>
|
|
|
|
<refsect1>
|
|
<title>Files</title>
|
|
<variablelist>
|
|
<varlistentry>
|
|
<term>
|
|
<filename>/usr/lib/kernel/install.d/*.install</filename>
|
|
<filename>/etc/kernel/install.d/*.install</filename>
|
|
</term>
|
|
<listitem>
|
|
<para>Drop-in files which are executed by kernel-install.</para>
|
|
</listitem>
|
|
</varlistentry>
|
|
<varlistentry>
|
|
<term>
|
|
<filename>/etc/kernel/cmdline</filename>
|
|
<filename>/proc/cmdline</filename>
|
|
</term>
|
|
<listitem>
|
|
<para>The content of the file <filename>/etc/kernel/cmdline</filename> specifies the kernel command line to use.
|
|
If that file does not exist, <filename>/proc/cmdline</filename> is used.</para>
|
|
</listitem>
|
|
</varlistentry>
|
|
<varlistentry>
|
|
<term>
|
|
<filename>/etc/machine-id</filename>
|
|
</term>
|
|
<listitem>
|
|
<para>The content of the file specifies the machine identification <replaceable>MACHINE-ID</replaceable>.</para>
|
|
</listitem>
|
|
</varlistentry>
|
|
<varlistentry>
|
|
<term>
|
|
<filename>/etc/os-release</filename>
|
|
<filename>/usr/lib/os-release</filename>
|
|
</term>
|
|
<listitem>
|
|
<para>The content of the file specifies the operating system title <replaceable>PRETTY_NAME</replaceable>.</para>
|
|
</listitem>
|
|
</varlistentry>
|
|
</variablelist>
|
|
</refsect1>
|
|
|
|
<refsect1>
|
|
<title>See Also</title>
|
|
<para>
|
|
<citerefentry><refentrytitle>machine-id</refentrytitle><manvolnum>5</manvolnum></citerefentry>,
|
|
<citerefentry><refentrytitle>os-release</refentrytitle><manvolnum>5</manvolnum></citerefentry>,
|
|
<ulink url="https://www.freedesktop.org/wiki/Specifications/BootLoaderSpec">Boot loader specification</ulink>
|
|
</para>
|
|
</refsect1>
|
|
|
|
</refentry>
|