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https://github.com/systemd/systemd-stable.git
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12b42c7667
This did not really work out as we had hoped. Trying to do this upstream introduced several problems that probably makes it better suited as a downstream patch after all. At any rate, it is not releaseable in the current state, so we at least need to revert this before the release. * by adjusting the path to binaries, but not do the same thing to the search path we end up with inconsistent man-pages. Adjusting the search path too would be quite messy, and it is not at all obvious that this is worth the effort, but at any rate it would have to be done before we could ship this. * this means that distributed man-pages does not make sense as they depend on config options, and for better or worse we are still distributing man pages, so that is something that definitely needs sorting out before we could ship with this patch. * we have long held that split-usr is only minimally supported in order to boot, and something we hope will eventually go away. So before we start adding even more magic/effort in order to make this work nicely, we should probably question if it makes sense at all.
193 lines
8.1 KiB
XML
193 lines
8.1 KiB
XML
<?xml version='1.0'?> <!--*- Mode: nxml; nxml-child-indent: 2; indent-tabs-mode: nil -*-->
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<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
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"http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
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<!--
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This file is part of systemd.
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Copyright 2013 Harald Hoyer
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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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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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Lesser General Public License for more details.
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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 <http://www.gnu.org/licenses/>.
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-->
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<refentry id="kernel-install">
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<refentryinfo>
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<title>kernel-install</title>
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<productname>systemd</productname>
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<authorgroup>
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<author>
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<contrib>Developer</contrib>
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<firstname>Harald</firstname>
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<surname>Hoyer</surname>
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<email>harald@redhat.com</email>
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</author>
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</authorgroup>
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</refentryinfo>
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<refmeta>
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<refentrytitle>kernel-install</refentrytitle>
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<manvolnum>8</manvolnum>
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</refmeta>
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<refnamediv>
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<refname>kernel-install</refname>
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<refpurpose>Add and remove kernel and initramfs images to and from /boot</refpurpose>
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</refnamediv>
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<refsynopsisdiv>
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<cmdsynopsis>
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<command>kernel-install</command>
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<arg choice="plain">COMMAND</arg>
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<arg choice="plain"><replaceable>KERNEL-VERSION</replaceable></arg>
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<arg choice="opt"><replaceable>KERNEL-IMAGE</replaceable></arg>
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</cmdsynopsis>
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</refsynopsisdiv>
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<refsect1>
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<title>Description</title>
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<para>
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<command>kernel-install</command> is used to install and remove kernel and
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initramfs images to and from <filename>/boot</filename>.
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</para>
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<para><command>kernel-install</command> will execute the files
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located in the directory <filename>/usr/lib/kernel/install.d/</filename>
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and the local administration directory <filename>/etc/kernel/install.d/</filename>.
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All files are collectively sorted and executed in lexical order, regardless of the directory in
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which they live. However, files with identical filenames replace each other.
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Files in <filename>/etc/kernel/install.d/</filename> take precedence over files with the same name
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in <filename>/usr/lib/kernel/install.d/</filename>. This can be used to override a system-supplied
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executables with a local file if needed; a symbolic link in <filename>/etc/kernel/install.d/</filename>
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with the same name as an executable in <filename>/usr/lib/kernel/install.d/</filename>,
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pointing to /dev/null, disables the executable entirely. Executables must have the
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extension <literal>.install</literal>; other extensions are ignored.</para>
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</refsect1>
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<refsect1>
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<title>Commands</title>
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<para>The following commands are understood:</para>
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<variablelist>
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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><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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<programlisting>add <replaceable>KERNEL-VERSION</replaceable> <filename>/boot/<replaceable>MACHINE-ID</replaceable>/<replaceable>KERNEL-VERSION</replaceable>/</filename></programlisting>
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</para>
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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
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<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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It also creates a boot loader entry according to the boot
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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
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<replaceable>PRETTY_NAME</replaceable> parameter specified
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in <filename>/etc/os-release</filename> or
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<filename>/usr/lib/os-release</filename> (if the former is
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missing), or "Linux
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<replaceable>KERNEL-VERSION</replaceable>", if unset. If
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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 <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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<programlisting>remove <replaceable>KERNEL-VERSION</replaceable> <filename>/boot/<replaceable>MACHINE-ID</replaceable>/<replaceable>KERNEL-VERSION</replaceable>/</filename></programlisting>
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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> 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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</variablelist>
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</refsect1>
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<refsect1>
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<title>Exit status</title>
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<para>If every executable returns with 0, 0 is returned, a non-zero failure code otherwise.</para>
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</refsect1>
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<refsect1>
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<title>Files</title>
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<variablelist>
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<varlistentry>
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<term>
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<filename>/usr/lib/kernel/install.d/*.install</filename>
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<filename>/etc/kernel/install.d/*.install</filename>
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</term>
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<listitem>
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<para>Drop-in files which are executed by kernel-install.</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term>
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<filename>/etc/kernel/cmdline</filename>
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<filename>/proc/cmdline</filename>
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</term>
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<listitem>
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<para>The content of the file <filename>/etc/kernel/cmdline</filename> specifies the kernel command line to use.
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If that file does not exist, <filename>/proc/cmdline</filename> is used.</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term>
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<filename>/etc/machine-id</filename>
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</term>
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<listitem>
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<para>The content of the file specifies the machine identification <replaceable>MACHINE-ID</replaceable>.</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term>
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<filename>/etc/os-release</filename>
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<filename>/usr/lib/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 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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</refsect1>
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<refsect1>
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<title>See Also</title>
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<para>
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<citerefentry><refentrytitle>machine-id</refentrytitle><manvolnum>5</manvolnum></citerefentry>,
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<citerefentry><refentrytitle>os-release</refentrytitle><manvolnum>5</manvolnum></citerefentry>,
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<ulink url="http://www.freedesktop.org/wiki/Specifications/BootLoaderSpec">Boot loader specification</ulink>
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</para>
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</refsect1>
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</refentry>
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