update and installation problem fedora 10

[vtnmraper]

here is what I get in the terminal

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)

My computer suddenly shut down during an installation

How do I fix it?

[reed9]

su -
yum clean all   
rpm --rebuilddb
yum clean all 
yum update

Possible you need to remove the database first:

su -
rm /var/lib/rpm/__db*
yum clean all
rpm --rebuilddb
yum update