Yum – Warning: RPMDB altered outside of yum … killed

Issue:

Yum cannot proceed even though the Transaction Testing is passed. but after seeing a message: Warning: RPMDB altered outside of yum

then waited for a while, it showed: killed. Then stop the installation

Using the following are all not effective:

  • rm -f /var/lib/rpm/__db.*
  • yum clean all
  • rpm –rebuilddb

Solution:

  1. Run: Yum history new
  2. Reboot

Configuration:

OS: CentOS 6.4