Yum RPMDB failed

If you are getting an error similar to the yum error below, yum may be broken in your system.

error: rpmdb: BDB0113 Thread/process 2196/139984719730496 failed: BDB1507 Thread died in Berkeley DB library
error: db5 error(-30973) from dbenv->failchk: BDB0087 DB_RUNRECOVERY: Fatal error, run database recovery
error: cannot open Packages index using db5 - (-30973)
error: cannot open Packages database in /var/lib/rpm
Error: rpmdb open failed

Here’s the fix.

mv /var/lib/rpm/__db* /tmp
yum clean all

Run your yum commands. The errors should be gone.

TrendMicro Security Agent

How to start/stop/restart/status TrendMicro Security agent.

/etc/init.d/ds_agent start
/etc/init.d/ds_agent stop
/etc/init.d/ds_agent restart
/etc/init.d/ds_agent status
/etc/init.d/ds_agent reset

Check if installed.

rpm -qa | grep 'ds_agent'

Install with verbose and hash.

rpm -ivh package-name

Uninstall with verbose.

rpm -ev package-name

Checking Last Patch

You can check when the system was last patch using the following.

# check RPM when the last updates were ran.
rpm -qa --last | grep kernel
# this is a bit of a stretch, but typically a reboot is performed after an upgrade.