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Description of problem:
bug 1287468 introduced a regression that causes exportfs to fail when there is an empty /etc/exports file. A empty /etc/exports file is valid and should not cause exportfs to fail.
Version-Release number of selected component (if applicable):
RHEL-7.2 with nfs-utils-1.3.0-0.24.el7
How reproducible:
100% easy
Steps to Reproduce:
1. echo "" >/etc/exports
2. exportfs -a
3. echo $?
Actual results:
[root@hp-dl385pg8-08 ~]# >/etc/exports
[root@hp-dl385pg8-08 ~]# ls /etc/exports.d/
[root@hp-dl385pg8-08 ~]# exportfs -a
exportfs: No file systems exported!
[root@hp-dl385pg8-08 ~]# echo $?
1
[root@hp-dl385pg8-08 ~]# exportfs -r
exportfs: No file systems exported!
[root@hp-dl385pg8-08 ~]# echo $?
1
[root@hp-dl385pg8-08 ~]#
[root@hp-dl385pg8-08 ~]# cat /etc/exports
[root@hp-dl385pg8-08 ~]# echo "/tmp *(rw,no_root_squash)" > /etc/exports.d/test.exports
[root@hp-dl385pg8-08 ~]# exportfs -a
exportfs: No file systems exported!
[root@hp-dl385pg8-08 ~]# echo $?
1
[root@hp-dl385pg8-08 ~]# exportfs -v
/tmp <world>(rw,wdelay,no_root_squash,no_subtree_check,sec=sys,rw,secure,no_root_squash,no_all_squash)
[root@hp-dl385pg8-08 ~]#
Expected results:
A empty /etc/exports file is valid and should not cause exportfs to fail
Additional info:
N/A
May need the following upstream patches:
commit d6ef125c4be83de1d94727bf6be74cd7c0bf424c
Author: Pavel Raiskup <praiskup>
Date: Wed Dec 3 17:10:11 2014 -0500
exportfs: warn when really nothing is exported
Throw 'No file systems exported!' iff no volume is exported rather
then if some exports file is empty. Typically this can happen if
the default /etc/exports file is empty and admin installed
configuration into /etc/exports.d directory.
This is follow-up for e725def62c73b4 commit.
commit e725def62c73b4aa269fefc4c0d96abb41927fcb
Author: Steve Dickson <steved>
Date: Mon Nov 17 13:17:20 2014 -0500
exportfs: Do not fail on empty exports file.
Commit 076dd80 introduced a regression that causes
exportfs to fail when there is an empty /etc/exports
file. A empty /etc/exports file is valid and should
not cause exportfs to fail.
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.
https://rhn.redhat.com/errata/RHBA-2016-2383.html