title: can't create transaction lock on /var/lib/rpm/.rpm.lock
body: <p>I am trying install MySQL server rpm using <strong>root user</strong> in Cent OS 6.8 but getting below error message.</p>
  
  <pre><code># rpm -iv MySQL-server-5.6.29-1.el6.x86_64.rpm 
  warning: MySQL-server-5.6.29-1.el6.x86_64.rpm: Header V3 DSA/SHA1 Signature, key ID 5072e1f5: NOKEY
  warning: waiting for transaction lock on /var/lib/rpm/.rpm.lock
  ^Cerror: can't create transaction lock on /var/lib/rpm/.rpm.lock (Interrupted system call)
  </code></pre>
  
  <p>Could you please help on this.</p>