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authorPaul Mackerras <paulus@samba.org>2006-08-01 10:37:25 +1000
committerPaul Mackerras <paulus@samba.org>2006-08-01 10:37:25 +1000
commit57cad8084e0837e0f2c97da789ec9b3f36809be9 (patch)
treee9c790afb4286f78cb08d9664f58baa7e876fe55 /Documentation/initrd.txt
parentcb18bd40030c879cd93fef02fd579f74dbab473d (diff)
parent49b1e3ea19b1c95c2f012b8331ffb3b169e4c042 (diff)
downloadop-kernel-dev-57cad8084e0837e0f2c97da789ec9b3f36809be9.zip
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Merge branch 'merge'
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@@ -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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