1diff -ruN a/src/config.py b/src/config.py
2--- a/src/config.py 2015-07-31 19:35:37.000000000 +0000
3+++ b/src/config.py 2015-08-03 09:23:34.322098081 +0000
4@@ -14,6 +14,7 @@
5
6 import logging.config
7 import os
8+import stat
9 import sys
10 import pkg_resources
11
12@@ -563,6 +564,13 @@
13 copy2(default, options.filename)
14 elif path.isfile(other):
15 copy2(other, options.filename)
16+
17+ # Inside the nixstore, the reference file is readonly, so is the copy.
18+ # Make it writable by the user who just created it.
19+ if os.path.exists(options.filename):
20+ os.chmod(options.filename,
21+ os.stat(options.filename).st_mode | stat.S_IWUSR)
22+
23 global firstrun
24 firstrun = True
25