mirror of
https://github.com/systemd/systemd
synced 2024-10-06 16:21:34 +00:00
man: update kernel-install(8) documentation
Many general updates, but most importantly, document the /etc/kernel/tries logic briefly.
This commit is contained in:
parent
bf7b6d28c3
commit
4b2d80bb0a
|
@ -63,49 +63,61 @@
|
|||
<varlistentry>
|
||||
<term><command>add <replaceable>KERNEL-VERSION</replaceable> <replaceable>KERNEL-IMAGE</replaceable></command></term>
|
||||
<listitem>
|
||||
<para><command>kernel-install</command> creates the directory
|
||||
<para>This command expects a kernel version string and a path to a kernel image file as
|
||||
arguments. <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>
|
||||
and calls the executables from <filename>/usr/lib/kernel/install.d/*.install</filename> and
|
||||
<filename>/etc/kernel/install.d/*.install</filename> with the following 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>Two default plugins execute the following operations in this case:</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>
|
||||
<itemizedlist>
|
||||
|
||||
<listitem><para><filename>50-depmod.install</filename> runs
|
||||
<citerefentry><refentrytitle>depmod</refentrytitle><manvolnum>8</manvolnum></citerefentry> for the
|
||||
<replaceable>KERNEL-VERSION</replaceable>.</para></listitem>
|
||||
|
||||
<listitem><para><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 <ulink
|
||||
url="https://systemd.io/BOOT_LOADER_SPECIFICATION">Boot Loader Specification</ulink> 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 kernel image file, the initrd will be added to the
|
||||
configuration.</para></listitem>
|
||||
</itemizedlist>
|
||||
</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
|
||||
<para>This command expects a kernel version string as single argument. This calls executables from
|
||||
<filename>/usr/lib/kernel/install.d/*.install</filename> and
|
||||
<filename>/etc/kernel/install.d/*.install</filename> with the following 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>Afterwards, <command>kernel-install</command> removes the directory
|
||||
<filename>/boot/<replaceable>MACHINE-ID</replaceable>/<replaceable>KERNEL-VERSION</replaceable>/</filename>
|
||||
and its contents.</para>
|
||||
|
||||
<para>Two default plugins execute the following operations in this case:</para>
|
||||
|
||||
<itemizedlist>
|
||||
|
||||
<listitem><para><filename>50-depmod.install</filename> removes the files generated by <command>depmod</command> for this kernel again.</para></listitem>
|
||||
|
||||
<listitem><para><filename>90-loaderentry.install</filename> removes the file
|
||||
<filename>/boot/loader/entries/<replaceable>MACHINE-ID</replaceable>-<replaceable>KERNEL-VERSION</replaceable>.conf</filename>.</para></listitem>
|
||||
</itemizedlist>
|
||||
|
||||
<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>
|
||||
|
||||
|
@ -136,8 +148,22 @@
|
|||
<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>
|
||||
<para>Read by <filename>90-loaderentry.install</filename>. 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/kernel/tries</filename>
|
||||
</term>
|
||||
<listitem>
|
||||
<para>Read by <filename>90-loaderentry.install</filename>. If this file exists a numeric value is read from
|
||||
it and the naming of the generated entry file is slightly altered to include it as
|
||||
<filename>/boot/loader/entries/<replaceable>MACHINE-ID</replaceable>-<replaceable>KERNEL-VERSION</replaceable>+<replaceable>TRIES</replaceable>.conf</filename>. This
|
||||
is useful for boot loaders such as
|
||||
<citerefentry><refentrytitle>systemd-boot</refentrytitle><manvolnum>7</manvolnum></citerefentry> which
|
||||
implement boot attempt counting with a counter embedded in the entry file name.</para>
|
||||
</listitem>
|
||||
</varlistentry>
|
||||
<varlistentry>
|
||||
|
@ -165,6 +191,8 @@
|
|||
<para>
|
||||
<citerefentry><refentrytitle>machine-id</refentrytitle><manvolnum>5</manvolnum></citerefentry>,
|
||||
<citerefentry><refentrytitle>os-release</refentrytitle><manvolnum>5</manvolnum></citerefentry>,
|
||||
<citerefentry><refentrytitle>depmod</refentrytitle><manvolnum>8</manvolnum></citerefentry>,
|
||||
<citerefentry><refentrytitle>systemd-boot</refentrytitle><manvolnum>7</manvolnum></citerefentry>,
|
||||
<ulink url="https://systemd.io/BOOT_LOADER_SPECIFICATION">Boot Loader Specification</ulink>
|
||||
</para>
|
||||
</refsect1>
|
||||
|
|
Loading…
Reference in a new issue