ERROR: Unsupported Red Hat system detected
------------------------------------------
It appears that you are not running a RHEL supported system. Currently, the
only supported versions include Red Hat Enterprise Linux Server versions 6.7,
6.8, 7.3, 7.4, 7.5, 7.6, 8.0, 8.1, 8.2, 8.3, 8.4, 8.5 and 8.6. Please contact
CA support for assistance in upgrading your system and refer to your
installation guide for more details regarding system requirements for
performing upgrades. This installer will now exit.
OS Detected: Red Hat Enterprise Linux release 8.4 (Ootpa)
PRESS <ENTER> TO ACCEPT THE FOLLOWING (OK):
ERROR: Unsupported Red Hat system detected
------------------------------------------
It appears that you are not running a RHEL supported system. Currently, the
only supported versions include Red Hat Enterprise Linux Server versions 6.7,
6.8, 7.3, 7.4, 7.5, 7.6, 8.0, 8.1, 8.2, 8.3, 8.4, 8.5 and 8.6. Please contact
CA support for assistance in upgrading your system and refer to your
installation guide for more details regarding system requirements for
performing upgrades. This installer will now exit.
OS Detected: Red Hat Enterprise Linux Server release 7.7 (Maipo)
PRESS <ENTER> TO ACCEPT THE FOLLOWING (OK):
Release : 22.2
Component : NQRAHV - NETQOS RA HARVESTER
Technically 7.9 is not supported
2. Download and install the RedHat backward combability package:
yum install redhat-lsb*
That should do it. Now you can re-run the install. Set the release file back to 7.9 after the upgrade
Note: [[email protected] ~]# rpm -qa | grep redhat-lsb
redhat-lsb-submod-security-4.1-27.el7.x86_64
redhat-lsb-printing-4.1-27.el7.x86_64
redhat-lsb-submod-multimedia-4.1-27.el7.x86_64
redhat-lsb-core-4.1-27.el7.x86_64
redhat-lsb-cxx-4.1-27.el7.x86_64
redhat-lsb-languages-4.1-27.el7.x86_64
redhat-lsb-4.1-27.el7.x86_64
redhat-lsb-desktop-4.1-27.el7.x86_64