Bug 830993

Summary:	Unable to set persistent minor number above 255
Product:	Red Hat Enterprise Linux 5	Reporter:	David Wood <dwood>
Component:	lvm2	Assignee:	Peter Rajnoha <prajnoha>
Status:	CLOSED ERRATA	QA Contact:	Cluster QE <mspqa-list>
Severity:	unspecified	Docs Contact:
Priority:	unspecified
Version:	5.8	CC:	agk, dsulliva, dwysocha, heinzm, jbrassow, lmiksik, msnitzer, nperic, prajnoha, prockai, slevine, thornber, zkabelac
Target Milestone:	rc
Target Release:	---
Hardware:	x86_64
OS:	Linux
Whiteboard:
Fixed In Version:	lvm2-2.02.88-11.el5	Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2013-10-01 00:27:33 UTC	Type:	Bug
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:

Description David Wood 2012-06-11 21:03:11 UTC

Description of problem:
Unable to set the minor number of an LV to someting above 255

Version-Release number of selected component (if applicable):
This happens in RHEL 5.7, 5.8, 6.2, and 6.3

How reproducible:
100%

Steps to Reproduce:
1. lvchange --persistent y --major 253 --minor 265 ANY_LV

  
Actual results:
Minor number outside range 0-255
  Invalid argument for --minor: 265
  Error during parsing of command line.

Expected results:
The persistent minor number should be set to 265

Additional info:

Comment 1 Peter Rajnoha 2012-06-12 11:44:03 UTC

Amazing nobody did hit this before! But yes, it's a bug (we still need to check for the kernel and metadata version though).

Comment 2 Peter Rajnoha 2012-08-06 16:13:54 UTC

New limit set to follow the kernel >= 2.6: 12 and 20 bits for major and minor number (4095 and 1048575).

http://git.fedorahosted.org/cgit/lvm2.git/commit/?id=6e55201144be3bcf82b6aafe7e9f7430318719d0

Comment 7 RHEL Program Management 2013-04-04 12:29:36 UTC

This request was evaluated by Red Hat Product Management for inclusion
in a Red Hat Enterprise Linux release.  Product Management has
requested further review of this request by Red Hat Engineering, for
potential inclusion in a Red Hat Enterprise Linux release for currently
deployed products.  This request is not yet committed for inclusion in
a release.

Comment 9 Nenad Peric 2013-05-16 09:49:56 UTC

Tested and setting up a high-numbered minor works with lvm2-2.02.88-11.el5


(04:46:51) [root@r5-node02:~]$ lvchange --persistent y --major 252 --minor 300 test/majnor
Logical volume majnor will be deactivated temporarily. Continue? [y/n]: y
  Logical volume "majnor" changed
(04:47:16) [root@r5-node02:~]$ dmsetup ls
VolGroup00-LogVol01	(252, 1)
VolGroup00-LogVol00	(252, 0)
test-majnor	(252, 300)

Comment 11 errata-xmlrpc 2013-10-01 00:27:33 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.

http://rhn.redhat.com/errata/RHBA-2013-1352.html