Create a file,
/etc/polkit-1/rules.d/50-default.rules
which has,
// DO NOT EDIT THIS FILE, it will be overwritten on update
//
// Default rules for polkit
//
// See the polkit(8) man page for more information
// about configuring polkit.
polkit.addAdminRule(function(action, subject) {
return ["unix-group:wheel"];
});
polkit.addRule(function(action, subject) {
if (action.id.indexOf("org.freedesktop.udisks") == 0) {
return polkit.Result.YES;
}
});
and reboot. Make sure your id is in group "wheel"