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Commit 0a5eca65 authored by Thomas Horsley's avatar Thomas Horsley Committed by Linus Torvalds
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[PATCH] documentation: Documentation/initrd.txt 



I spent a long time the other day trying to examine an initrd image on a
fedora core 5 system because the initrd.txt file is apparently obsolete.
Here is a patch which I hope will reduce future confusion for others.

Signed-off-by: default avatarThomas Horsley <tom.horsley@ccur.com>
Signed-off-by: default avatarAndrew Morton <akpm@osdl.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@osdl.org>
parent 5a06a363

Documentation/initrd.txt

+16 −0
Original line number Diff line number Diff line
@@ -72,6 +72,22 @@ initrd adds the following new options: 
    initrd is mounted as root, and the normal boot procedure is followed,

    with the RAM disk still mounted as root.



Compressed cpio images

----------------------



Recent kernels have support for populating a ramdisk from a compressed cpio

archive, on such systems, the creation of a ramdisk image doesn't need to

involve special block devices or loopbacks, you merely create a directory on

disk with the desired initrd content, cd to that directory, and run (as an

example):



find . | cpio --quiet -c -o | gzip -9 -n > /boot/imagefile.img



Examining the contents of an existing image file is just as simple:



mkdir /tmp/imagefile

cd /tmp/imagefile

gzip -cd /boot/imagefile.img | cpio -imd --quiet



Installation

------------