Red Hat Bugzilla – Bug 143126
autofs reads all auto.master maps
Last modified: 2007-11-30 17:07:05 EST
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):
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
the master map will contain all entries from both master maps
master map is whichever autofs found first (not both)
This has been fixed in the Fedora Core 3 version of autofs RPM. We'd like to get
this into the next RHEL3 errata.
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.
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.