May I safely execute yum-complete-transaction?

Fri Oct 9 21:45:14 UTC 2009

Ok, now it dies because it says my database is corrupted:

rpmdb: Thread/process 1789/3086182080 failed: Thread died in Berkeley DB library
error: db4 error(-30974) from dbenv->failchk: DB_RUNRECOVERY: Fatal
error, run database recovery
error: cannot open Packages index using db3 -  (-30974)
error: cannot open Packages database in /var/lib/rpm

I guess my options repaing this are rather limited?
Any ideas?

Thanks, Clemens