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authorSteven Whitehouse <swhiteho@redhat.com>2006-08-07 09:16:35 -0400
committerSteven Whitehouse <swhiteho@redhat.com>2006-08-07 09:16:35 -0400
commitad73c67e792c752ddc99f2b0587abae05255dd6d (patch)
treee33d5d37a8c56b6fad753fa2d481f43cfb60ae1d /Documentation/initrd.txt
parent08eac93a689ca05c7b7413f6d362c7d38b5fd5b1 (diff)
parent9f737633e6ee54fc174282d49b2559bd2208391d (diff)
downloadtalos-op-linux-ad73c67e792c752ddc99f2b0587abae05255dd6d.tar.gz
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+++ b/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
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