Bug 143126 (IT_57523)

Summary:	autofs reads all auto.master maps
Product:	Red Hat Enterprise Linux 3	Reporter:	David Lehman <dlehman>
Component:	autofs	Assignee:	Jeff Moyer <jmoyer>
Status:	CLOSED ERRATA	QA Contact:	Brock Organ <borgan>
Severity:	medium	Docs Contact:
Priority:	medium
Version:	3.0	CC:	berrange, cfeist, tao
Target Milestone:	---
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:	RHBA-2005-178	Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2005-05-19 22:05:45 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:

Description David Lehman 2004-12-16 18:47:11 UTC

Description of problem:
The automounter init scripts are supposed to honour settings in
/etc/nsswitch.conf for determining the master map. So, if nsswitch.conf contains
'files nis', then it should check in /etc/auto.master for any maps & if none are
found, then check in NIS for any maps.

What the current scripts do, however, is to take the UNION of all the maps in
/etc/auto.master & NIS. So, when trying to use /etc/auto.master to override
what's in NIS, you end up with multiple definitions for the same mount point.

Version-Release number of selected component (if applicable):
autofs-4.1.3-12

How reproducible:
Always

Steps to Reproduce:
1. Set up nsswitch.conf to look in nis then files for automount maps
2. configure an auto.master in both NIS and /etc/auto.master
3. start autofs
  
Actual results:
the master map will contain all entries from both master maps

Expected results:
master map is whichever autofs found first (not both)

Additional info:
This has been fixed in the Fedora Core 3 version of autofs RPM. We'd like to get
this into the next RHEL3 errata.

Comment 1 Jeff Moyer 2004-12-16 18:50:14 UTC

I am quite clear on how the current automounter operates with regards to this
issue.  However, last I tried to change the behaviour to match that of the Sun
automounter, I had users reporting regressions, since they had come to rely on
the current behaviour.  I will work to see if the +map syntax in auto.master
would be an acceptable alternative to those complaining of regressions.

-jeff

Comment 4 Dennis Gregorovic 2005-05-19 22:05:46 UTC

An advisory has been issued which should help the problem
described in this bug report. This report is therefore being
closed with a resolution of ERRATA. For more information
on the solution and/or where to find the updated files,
please follow the link below. You may reopen this bug report
if the solution does not work for you.

http://rhn.redhat.com/errata/RHBA-2005-177.html