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Bug#517072: MODULES=dep fails w/ luks over cciss devices

Package: initramfs-tools
Version: 0.92o
Severity: important
Tags: patch

I needed to run update-initramfs w/ MODULES=dep (for some 15M BIOS size
limitation w/ lilo on an HP server), turns out that I found the same bug
as #507619 (please refer to it for details), except that I have a LUKS
format over the cciss device.

As bug #507619 describes:
"dep_add_modules() expects to find a /sys/block/cciss/c0d0p file, but
it should be trying /sys/block/cciss!c0d0"

It also mentions:
"fyi, I suspect this may also apply to old-style smart array devices,
where device names are similar, but use 'ida' intead of 'cciss' -
e.g. /dev/ida/c0d0p1."

The following patch fixes it for me (on cciss) and should also fix it
for ida devices:

--- /usr/share/initramfs-tools/hook-functions.orig	2009-02-25
13:59:04.000000000 +0100
+++ /usr/share/initramfs-tools/hook-functions	2009-02-25
14:00:50.000000000 +0100
@@ -259,7 +259,13 @@
 			block=$(awk "/^${block}/{print substr(\$5, 1, 4); exit}" \
-		block=${block%[0-9]*}
+		# luks or lvm on cciss or ida
+		if [ "${block#cciss}" != "${block}" ] \
+			|| [ "${block#ida}" != "${block}" ]; then
+			block="${block%p*}"
+		else
+			block=${block%[0-9]*}
+		fi
 	# md root new naming scheme /dev/md/X
 	elif [ "${root#/dev/md/}" != "${root}" ]; then

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