Bug 996627

Summary:	Disable lvmetad use in dracut
Product:	Red Hat Enterprise Linux 7	Reporter:	Marian Csontos <mcsontos>
Component:	dracut	Assignee:	dracut-maint
Status:	CLOSED CURRENTRELEASE	QA Contact:	Release Test Team <release-test-team-automation>
Severity:	medium	Docs Contact:
Priority:	medium
Version:	7.0	CC:	agk, dracut-maint-list, dracut-maint, harald, jonathan, mbroz, mkovarik, prajnoha
Target Milestone:	rc
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:	dracut-032-1.el7	Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:	811129	Environment:
Last Closed:	2014-06-13 12:35:07 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:
Bug Depends On:	811129
Bug Blocks:

Description Marian Csontos 2013-08-13 14:39:31 UTC

lvmetad is now enabled in el7 builds. Seems the patch did not made it into dracut.el7 as suggested by following in the rdsosreport.txt attached to Bug 994978:

    /usr/sbin/rdsosreport@35(): command -v lvm
    /usr/sbin/rdsosreport@36(): lvm pvdisplay
      /run/lvm/lvmetad.socket: connect failed: No such file or directory
      WARNING: Failed to connect to lvmetad: No such file or directory. Falling back to internal scanning.
      /run/lvm/lvmetad.socket: connect failed: No such file or directory
    ...

+++ This bug was initially created as a clone of Bug #811129 +++

Currently dracut uses lvm.conf as found in the system and modifies only global/locking_type setting. As there's a new feature introduced - the lvmetad daemon, dracut should disable its use as well by setting "global/use_lvmetad=0"
(patch attached).

Otherwise, there's a warning message issued:

dracut: WARNING: Failed to connect to lvmetad: No such file or directory. Falling back to internal scanning.

Comment 2 Harald Hoyer 2013-08-20 13:24:04 UTC

commit 69f7ed96109095c8d3c39c1f741598119b602936

Comment 3 Harald Hoyer 2013-08-20 13:39:34 UTC

dracut-032-1.el7

Comment 5 Harald Hoyer 2013-12-18 15:14:23 UTC

Please test http://people.redhat.com/harald/downloads/dracut/dracut-033-67.el7/ if possible

Comment 6 Michal Kovarik 2014-02-11 17:35:20 UTC

Verified on RHEL-7.0-20140210.0 with dracut-033-115.el7.

[root@rhevh-x3650-01-g7 ~]#  lsinitrd -f /etc/lvm/lvm.conf | grep use_lvmetad
    # lvmetad is used" comment that is attached to global/use_lvmetad setting.
    # supported in clustered environment. If use_lvmetad=1 and locking_type=3
    # If lvmetad has been running while use_lvmetad was 0, it MUST be stopped
    # before changing use_lvmetad to 1 and started again afterwards.
    # supported in clustered environment. If use_lvmetad=1 and locking_type=3
    use_lvmetad = 0
    #     is triggered. This requires lvmetad (global/use_lvmetad=1) and udev

Comment 7 Ludek Smid 2014-06-13 12:35:07 UTC

This request was resolved in Red Hat Enterprise Linux 7.0.

Contact your manager or support representative in case you have further questions about the request.