Strange update error message and system will not update

[Philip Moller]

Philip Moller wrote:

> Charles Layno wrote:
>
>> I have 3 FC2 machines and recently did an apt-get update on them. All 
>> seemed to go well. Today I tried to do another update and I now get 
>> the following update message on all three machines. One is a Dell 
>> server, and the other two are workstations.
>>
>> rpmdb: Program version 4.3 doesn't match environment version
>> error: db4 error(-30974) from dbenv->open: DB_VERSION_MISMATCH: 
>> Database environment version mismatch
>> error: cannot open Packages index using db3 -  (-30974)
>> error: cannot open Packages database in /var/lib/rpm
>> E: could not open RPM database
>>
>> This looks really bad. Is it as bad as it looks and is there a way to 
>> recover from this without having to reinstall the whole system?
>>
>> Charles Layno
>> Greensboro, NC
>>
> Try:
> rpm --rebuilddb
>
> And use YUM instead of APT.
>
Try also:
yum clean all