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List:       rpmorg-list
Subject:    Re: FC6 rpm database corruption
From:       "Jeff Johnson" <n3npq.jbj () gmail ! com>
Date:       2006-12-04 13:14:14
Message-ID: 34f355ff0612040514j20272d0wf7839679ef6049a7 () mail ! gmail ! com
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On 12/4/06, Ambarish Sridharanarayanan <srdhrnry@uiuc.edu> wrote:
> [Apologies if dupe. I posted this 2-3 days ago, but it hasn't appeared on
> the archives.]
>
> After a power outage, /var & /usr on my FC6 machine encountered fs
> corruption. I restored /var from a day-old backup, but now rpm -qa spews
> tons of lines like:
>
> error: rpmdbNextIterator: skipping h# \
>      1470 Header V3 DSA signature: BAD, key ID 4f2a6fd2
>
> and then seg-faults.
>
> Any ideas? Right now I'm considering rpmdb_dump -p, followed by force
> installing all the packages to recreate the database.
>

Running rpm -qa -vv will digest/signature check every header in
Packages when read.

Headers that show up as BAD when signature checked can fail either because the
plaintext (the header) or the pubkey is damaged. Run
    rpm -qa -vv --nosignature
to distinguish the two cases.

For headers that are detectably BAD, rpm --rebuilddb will discard the header.

The other approach is
    cd /var/lib/rpm
    mv Packages Packages-ORIG
    /usr/lib/rpm/rpmdb_dump Packages-ORIG | \
        /usr/lib/rpm/rpmdb_load Packages

73 de Jeff

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