Re: Check RPM database?

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At 5:14 PM +0530 11/17/06, pritam ghanghas wrote:
>On Wed, 2006-11-15 at 19:29 -0500, Tony Nelson wrote:
>> At 6:53 PM -0500 11/15/06, Sam Varshavchik wrote:
>> >Content-Type: multipart/signed;
>> >	boundary="=_mimegpg-commodore.email-scan.com-28222-1163634835-0005";
>> >	micalg=pgp-sha1; protocol="application/pgp-signature"
>> >
>> >Tony Nelson writes:
>> >
>> >> Is there a way to check the RPM database for validity?  I know how to
>> >> rebuild it, and where it is stored, and that when yum says that the
>> >> database is corrupt that I must do something about it, but is there a way
>> >> to test it before total failure?
>> >
>> >Well, "rpm -q -a -V" is going to go and read pretty much all the bits in the
>> >rpm database.  If something's busted, you're likely going to hit it.
>> 
>> rpm -Va checks the possibly corrupt database's opinion of the filesystem,
>> and may be considered a check on the database's accuracy.  If RPM doesn't
>> crash while doing it, nothing much is proved about its validity.
>> 
>> Is there a tool or command to check the RPM database for being corrupt?
>> -- 
>> ____________________________________________________________________
>> TonyN.:'    The Great Writ     <mailto:tonynelson@xxxxxxxxxxxxxxxxx>
>>       '      is no more.             <http://www.georgeanelson.com/>
>
>There are a lot of tools in /usr/lib/rpm/
>they are supposed to be called by passing various options to rpm itself.
>But you can use them directly as well. In your case you could use
>/usr/lib/rpm/rpmdb_verify
>you have to give this command the name of the db file to verify.

Seems promising, especially as I don't know of a way to get rpm to verify
its database rather than its packages.  I used (all on one line):

    []# cd /var/lib/rpm ; for name in * ; do echo $name ; /usr/lib/rpm/rpmdb_verify $name ; done

If there are lock files there (__db*) it won't like them.  It also didn't
like my Dirnames file.  As the Packages file was OK, I used the "rpm
--rebuilddb" command to fix it.

I'm surprised that the database was corrupt, as it was rebuilt just before
upgrading FC5 to FC6.  I'll have to keep watching this.

I also found a page on fixing RPM database problems on RHEL3
<http://people.redhat.com/berrange/notes/rpmrecovery.html>.  I did make
sure that there were no users of the RPM database before mucking about with
it.
-- 
____________________________________________________________________
TonyN.:'    The Great Writ     <mailto:tonynelson@xxxxxxxxxxxxxxxxx>
      '      is no more.             <http://www.georgeanelson.com/>

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