Hello, the fixlet to install the Plugin Portal will only become relevant on Windows and RHEL systems, the Plugin Portal component doesn’t support CentOS.
The following note is from the description of the Plugin Portal installation fixlet:
Note: The Plugin Portal supports only 64 bit operating systems. It supports Windows 2012 R2/8.1 or later, and RHEL 7 or later. This fixlet will not install on an Embedded OS