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diff --git a/base/password.py b/base/password.py
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index bd68f2a..bff9f80 100644
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--- a/base/password.py
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+++ b/base/password.py
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@@ -157,6 +157,28 @@ class Password(object):
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                 log.warn("%s distro is not found in AUTH_TYPES" % distro_name)
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                 self.__authType = 'su'
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+        # check if caller is in wheel group - use 'su' if he isnt -
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+        # or if the caller is root (just for showing 'root' username)
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+        # in the prompt
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+        import os
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+        from grp import getgrnam
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+
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+        user = os.getenv('USER')
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+
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+        try:
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+            members = getgrnam('wheel').gr_mem
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+        except KeyError:
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+            try:
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+                members = getgrnam('sudo').gr_mem
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+            except:
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+                return
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+
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+        if user in members:
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+            self.__authType = 'sudo'
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+        else:
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+            self.__authType = 'su'
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+
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+
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     def __getPasswordDisplayString(self):
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         if self.__authType == "su":
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             return "Please enter the root/superuser password: "