Description of problem: Internal Error with traceback


Version-Release number of selected component: gpk-application 0.3.14


How reproducible: Every time attempt to open the application,update or serch packages



Steps to Reproduce:
1. Open application
or
2. try to update packages
or
3. try to do a serching
  
Actual results:
Error Type: <type 'exceptions.TypeError'>
Error Value: rpmdb open failed
  File : /usr/share/PackageKit/helpers/yum/yumBackend.py, line 2314, in <module>
    main()
  File : /usr/share/PackageKit/helpers/yum/yumBackend.py, line 2310, in main
    backend = PackageKitYumBackend('', lock=True)
  File : /usr/share/PackageKit/helpers/yum/yumBackend.py, line 182, in __init__
    self.yumbase = PackageKitYumBase(self)
  File : /usr/share/PackageKit/helpers/yum/yumBackend.py, line 2253, in __init__
    self.repos.confirm_func = self._repo_gpg_confirm
  File : /usr/lib/python2.5/site-packages/yum/__init__.py, line 589, in <lambda>
    repos = property(fget=lambda self: self._getRepos(),
  File : /usr/lib/python2.5/site-packages/yum/__init__.py, line 395, in _getRepos
    self._getConfig() # touch the config class first
  File : /usr/lib/python2.5/site-packages/yum/__init__.py, line 192, in _getConfig
    self._conf = config.readMainConfig(startupconf)
  File : /usr/lib/python2.5/site-packages/yum/config.py, line 774, in readMainConfig
    yumvars['releasever'] = _getsysver(startupconf.installroot, startupconf.distroverpkg)
  File : /usr/lib/python2.5/site-packages/yum/config.py, line 844, in _getsysver
    idx = ts.dbMatch('provides', distroverpkg)


Expected results:
To achieve the actions 

Additional info: