yum fails on my VPS / the RPM database on my VPS is corrupt

Under certain conditions the RPM database used by yum will become corrupt. Here is how to resolve this issue. You may see an error such as “Warning: RPMDB altered outside of yum” or “error: rpmdbNextIterator”

1. Take a backup FIRST, before trying to have rpm repair the database.

cd /var/lib
tar zcvf /var/preserve/rpmdb-[today's date].tar.gz rpm

Verify integrity with

cd /var/lib/rpm
rm -f __db*      # to avoid stale locks
/usr/lib/rpm/rpmdb_verify Packages

Next run the following:

mv Packages Packages.orig
/usr/lib/rpm/rpmdb_dump Packages.orig | /usr/lib/rpm/rpmdb_load Packages
/usr/lib/rpm/rpmdb_verify Packages
rpm -qa

Finally rebuild the database:


rpm -vv --rebuilddb

for the error :


error: rpmdbNextIterator

run:


mv /var/lib/rpm/Pubkeys /var/lib/rpm/Pubkeys.backup
rpm --rebuilddb -vv to recreate the index.

from : https://bugzilla.redhat.com/show_bug.cgi?id=108915

reference : http://kbase.redhat.com/faq/docs/DOC-6904#

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