By default, master-failover will call "herd start ganeti-wconfd" with
extra arguments such as --force-node.  That does not work with the
Shepherd, so the Guix service has a "force-start" action for this purpose.

diff --git a/lib/bootstrap.py b/lib/bootstrap.py
--- a/lib/bootstrap.py
+++ b/lib/bootstrap.py
@@ -1011,9 +1011,7 @@ def MasterFailover(no_voting=False):
 
   try:
     # Forcefully start WConfd so that we can access the configuration
-    result = utils.RunCmd([pathutils.DAEMON_UTIL,
-                           "start", constants.WCONFD, "--force-node",
-                           "--no-voting", "--yes-do-it"])
+    result = utils.RunCmd(["herd", "force-start", constants.WCONFD])
     if result.failed:
       raise errors.OpPrereqError("Could not start the configuration daemon,"
                                  " command %s had exitcode %s and error %s" %
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<div class='path'>path: <a href='/guix/log/?id=008dfa23d4d719e5522bbafbb949e38ee202c62a'>root</a>/<a href='/guix/log/tests?id=008dfa23d4d719e5522bbafbb949e38ee202c62a'>tests</a>/<a href='/guix/log/tests/containers.scm?id=008dfa23d4d719e5522bbafbb949e38ee202c62a'>containers.scm</a></div><div class='content'><table class='list nowrap'><tr class='nohover'><th class='left'>Age</th><th class='left'>Commit message (<a href='/guix/log/tests/containers.scm?id=008dfa23d4d719e5522bbafbb949e38ee202c62a&amp;showmsg=1'>Expand</a>)</th><th class='left'>Author</th></tr>
<tr><td><span title='2017-02-07 00:08:10 +0100'>2017-02-07</span></td><td><a href='/guix/commit/tests/containers.scm?id=c90db25f4cf1f98f3f4f3af38d175a14ffb8c32a'>linux-container: Add 'container-excursion*'.</a><span class='msg-avail'>...</span></td><td>Ludovic Courtès</td></tr>
<tr><td><span title='2016-11-13 13:04:00 +0100'>2016-11-13</span></td><td><a href='/guix/commit/tests/containers.scm?id=a24b56fa8d64d9c6b8348c439cc988dbcebc911f'>tests: Don't check file-systems in container tests.</a><span class='msg-avail'>...</span></td><td>Andy Patterson</td></tr>
<tr><td><span title='2016-11-10 18:01:44 +0100'>2016-11-10</span></td><td><a href='/guix/commit/tests/containers.scm?id=5970e8e248f6327c41c83b86bb2c89be7c3b1b4e'>container: Pass a list of &lt;file-system&gt; objects as things to mount.</a><span class='msg-avail'>...</span></td><td>Ludovic Courtès</td></tr>
<tr><td><span title='2016-10-19 15:54:10 +0200'>2016-10-19</span></td><td><a href='/guix/commit/tests/containers.scm?id=7fee5b53973fb4fe049aa0bc5db58093727bdf30'>container: Allow 'container-excursion' to the same namespaces.</a><span class='msg-avail'>...</span></td><td>Ludovic Courtès</td></tr>