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Bug 1179728

Summary:	multipath needs to support kernel command line wwids in RHEL6
Product:	Red Hat Enterprise Linux 6	Reporter:	Jan Kurik <jkurik>
Component:	device-mapper-multipath	Assignee:	Ben Marzinski <bmarzins>
Status:	CLOSED ERRATA	QA Contact:	yanfu,wang <yanwang>
Severity:	unspecified	Docs Contact:
Priority:	urgent
Version:	6.6	CC:	agk, bmarzins, bmcclain, cshao, dwysocha, fdeutsch, hadong, heinzm, jsvarova, leiwang, lilu, msnitzer, pm-eus, prajnoha, prockai, rbalakri, tlavigne, yanwang, ycui, zkabelac
Target Milestone:	rc	Keywords:	ZStream
Target Release:	---
Hardware:	Unspecified
OS:	Unspecified
Whiteboard:
Fixed In Version:	device-mapper-multipath-0.4.9-80.el6_6.2	Doc Type:	Bug Fix
Doc Text:	Previously, the first time the multipath utility recognized a path device, the path device was not claimed in the udev utility, and other programs could race multipath to claim it. As a consequence, multipath systems could fail to boot during installation. With this update, the multipathd daemon now checks the kernel command line on startup. If it has recognized any parameters with a World Wide Identifier (WWID) value, it adds those WWIDs to the list of multipath WWIDs. Devices with those WWIDs are thus claimed the first time they are recognized. As a result, if multipath systems do not boot successfully during installation, users can add mpath.wwid=[WWID] to the kernel command line to work around the problem.	Story Points:	---
Clone Of:	1175888	Environment:
Last Closed:	2015-01-14 12:22:55 UTC	Type:	---
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:
Bug Depends On:	1175888
Bug Blocks:

Description Jan Kurik 2015-01-07 12:29:36 UTC

This bug has been copied from bug #1175888 and has been proposed
to be backported to 6.6 z-stream (EUS).

Comment 3 Ben Marzinski 2015-01-07 18:39:14 UTC

Fix backported.

Comment 7 errata-xmlrpc 2015-01-14 12:22:55 UTC

Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.

For information on the advisory, and where to find the updated
files, follow the link below.

If the solution does not work for you, open a new bug report.

https://rhn.redhat.com/errata/RHBA-2015-0050.html