Can no longer update

[Dead1nside]

I didn't update for 3 months or so, as I hadn't used Fedora in a while. After it finished the long update and rebooted I get the following error:

[root@Jon-Laptop Jon]# yum update
Loaded plugins: refresh-packagekit
rpmdb: Thread/process 3198/3087034048 failed: Thread died in Berkeley DB library
error: db4 error(-30975) from dbenv->failchk: DB_RUNRECOVERY: Fatal error, run database recovery
error: cannot open Packages index using db3 -  (-30975)
error: cannot open Packages database in /var/lib/rpm
Traceback (most recent call last):
  File "/usr/bin/yum", line 29, in <module>
    yummain.user_main(sys.argv[1:], exit_code=True)
  File "/usr/share/yum-cli/yummain.py", line 229, in user_main
    errcode = main(args)
  File "/usr/share/yum-cli/yummain.py", line 84, in main
    base.getOptionsConfig(args)
  File "/usr/share/yum-cli/cli.py", line 184, in getOptionsConfig
    enabled_plugins=self.optparser._splitArg(opts.enableplugins))
  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)
TypeError: rpmdb open failed
[root@Jon-Laptop Jon]#

I would appreciate some help with this. Thank-you in advance.

[Nokia]

Try

su
rm -f /var/lib/rpm/__db.*
rpm --rebuilddb
# Wait for it to finish. Might take a while. 
yum clean all
yum update

[Dead1nside]

Thanks very much, that solved the problem.

[drchrishobson]

Thanks!
I had the same problem with rpmdb. Deleting and rebuilding it fixed things very nicely
Chris