The patch titled
documentation: Documentation/initrd.txt
has been added to the -mm tree. Its filename is
documentation-documentation-initrdtxt.patch
See http://www.zip.com.au/~akpm/linux/patches/stuff/added-to-mm.txt to find
out what to do about this
------------------------------------------------------
Subject: documentation: Documentation/initrd.txt
From: Thomas Horsley <tom.horsley@xxxxxxxx>
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: Thomas Horsley <tom.horsley@xxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxx>
---
Documentation/initrd.txt | 16 ++++++++++++++++
1 file changed, 16 insertions(+)
diff -puN Documentation/initrd.txt~documentation-documentation-initrdtxt Documentation/initrd.txt
--- a/Documentation/initrd.txt~documentation-documentation-initrdtxt
+++ a/Documentation/initrd.txt
@@ -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
------------
_
Patches currently in -mm which might be from tom.horsley@xxxxxxxx are
documentation-documentation-initrdtxt.patch
-
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