RPM-GPG-KEY Error While Installing Oracle Database 11g Release 2 (11.2.0.1.0)
<p>I am Trying to install Oracle Database 11gr2 in CENTOS 7.For installation process I am following this procedure <a href="https://oracle-base.com/articles/11g/oracle-db-11gr2-installation-on-oracle-linux-7" rel="noreferrer">https://oracle-base.com/articles/11g/oracle-db-11gr2-installation-on-oracle-linux-7</a></p>

<p>After downloading and unzipping both the package from <a href="http://www.oracle.com/technetwork/database/enterprise-edition/downloads/112010-linx8664soft-100572.html" rel="noreferrer">http://www.oracle.com/technetwork/database/enterprise-edition/downloads/112010-linx8664soft-100572.html</a> I am running below command to start installing.</p>

<pre><code>yum install oracle-rdbms-server-11gR2-preinstall
</code></pre>

<p>after processing for few moment I am getting below error.</p>

<blockquote>
  <p>warning:
  /var/cache/yum/x86_64/7/ol7_UEKR3/packages/kernel-uek-firmware-3.8.13-118.6.1.el7uek.noarch.rpm:
  Header V3 RSA/SHA256 Signature, key ID ec551f03: NOKEY Retrieving key
  from file:///etc/pki/rpm-gpg/RPM-GPG-KEY-oracle</p>
  
  <p>GPG key retrieval failed: [Errno 14] curl#37 - "Couldn't open file
  /etc/pki/rpm-gpg/RPM-GPG-KEY-oracle"</p>
</blockquote>

<p>How can I resolve above error and proceed to next step of installation?</p>