Bug 649572

Summary:	output of sfdisk -d for multipath device is using /dev/dm-N instead of /dev/mapper/mpathN
Product:	Red Hat Enterprise Linux 5	Reporter:	Gris Ge <fge>
Component:	util-linux	Assignee:	Karel Zak <kzak>
Status:	CLOSED WONTFIX	QA Contact:	qe-baseos-daemons
Severity:	medium	Docs Contact:
Priority:	low
Version:	5.5	CC:	rstrode
Target Milestone:	rc
Target Release:	---
Hardware:	Unspecified
OS:	Unspecified
Whiteboard:
Fixed In Version:		Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:
Clones:	663731 (view as bug list)		Environment:
Last Closed:	2012-02-21 18:38:19 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:
Bug Blocks:	663731

Description Gris Ge 2010-11-04 01:57:33 UTC

Description of problem:

multipath device does not show as /dev/mapper/mpathN in sfdisk -d
Even /dev/dm-N and /dev/mapper/mapthN are indentical in major:miner way.
But as document say, we suggest user to use /dev/mapper/mpathN instead of /dev/dm-N


Version-Release number of selected component (if applicable):
RHEL 5.5 with device-mapper-multipath upgrade to 0.4.7-39.el5
util-linux-2.13-0.52.el5_4.1
device-mapper-multipath-0.4.7-39.el5


Steps to Reproduce:
1. Setup a multipath enviroment.
2. sfdisk -d
  
Actual results:
sfdisk use /dev/dm-N to indicate the multipath device

Expected results:
sfdisk use /dev/mapper/mpathN to indicate the multipath device.

Additional info:

Comment 2 Karel Zak 2012-02-21 18:38:19 UTC

Closing, problem fixed on RHEL6, bugfix is not possible to backport to RHEL5 (because depends on kernel and new sysfs stuff). Thanks.