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ref-manual: INITRD var: make it a list of filesystem images. 

The initrd image used by the Linux kernel is list of file
system images concatenated together and presented as a single
initrd file at boot time.

So far the initrd is a single filesystem image. But in cases
like to support early microcode loading, the initrd image need
to have multiple filesystem images concatenated together.

This commit is extending the INITRD variable from a single
filesystem image to a list of filesystem images to satisfy
the need mentioned above.

(From yocto-docs rev: 051ef2e4d6480b28d21a59a79b6f0dca1a5944bd)

Signed-off-by: Scott Rifenbark <scott.m.rifenbark@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
This commit is contained in:
Nitin A Kamble 2014-08-06 13:24:35 +03:00 committed by Richard Purdie
parent 80bd63ba09
commit d211d47e4b
2 changed files with 6 additions and 5 deletions
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7
documentation/ref-manual/ref-classes.xml
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@ -881,7 +881,8 @@
<itemizedlist>
<listitem><para>
<link linkend='var-INITRD'><filename>INITRD</filename></link>:
Indicates a filesystem image to use as an initrd (optional).
Indicates list of filesystem images to concatenate and use
as an initial RAM disk (initrd) (optional).
</para></listitem>
<listitem><para>
<link linkend='var-ROOTFS'><filename>ROOTFS</filename></link>:
@ -2864,8 +2865,8 @@
The class supports the following variables:
<itemizedlist>
<listitem><para><emphasis><link linkend='var-INITRD'><filename>INITRD</filename></link>:</emphasis>
Indicates a filesystem image to use as an initial RAM disk
(initrd).
Indicates list of filesystem images to concatenate and use as
an initial RAM disk (initrd).
This variable is optional.</para></listitem>
<listitem><para><emphasis><link linkend='var-ROOTFS'><filename>ROOTFS</filename></link>:</emphasis>
Indicates a filesystem image to include as the root filesystem.

4
documentation/ref-manual/ref-variables.xml
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@ -4020,8 +4020,8 @@ recipes-graphics/xorg-font/font-alias_1.0.3.bb:PR = "${INC_PR}.3"
<glossentry id='var-INITRD'><glossterm>INITRD</glossterm>
<glossdef>
<para>
Indicates a filesystem image to use as an initial RAM
disk (<filename>initrd</filename>).
Indicates list of filesystem images to concatenate and use
as an initial RAM disk (<filename>initrd</filename>).
</para>
<para>