Oracle Linux 8 splunkforwarder install failing. Operation not permitted

[ntamcv]

I have automated scripts working fine with CentOS 7/8 without issue.

When attempting the same installation on OL8 

with cmd line:

$ /opt/splunkforwarder/bin/splunk start --answer-yes --no-prompt --accept-license --seed-passwd #######

I get the following:

ouldn't run "/opt/splunkforwarder/bin/splunkd" "btool": Operation not permitted
couldn't run "/opt/splunkforwarder/bin/splunkd" "btool": Operation not permitted
couldn't run "/opt/splunkforwarder/bin/splunkd" "btool": Operation not permitted
Did not find "disabled" setting of "kvstore" stanza in server bundle.

Splunk> Map. Reduce. Recycle.

Checking prerequisites...
couldn't run "/opt/splunkforwarder/bin/splunkd" "btool": Operation not permitted
Checking mgmt port [8089]: couldn't run "/opt/splunkforwarder/bin/splunkd" "btool": Operation not permitted
open
execve: Operation not permitted
while running command /opt/splunkforwarder/bin/splunkd
Checking kvstore port [8191]: couldn't run "/opt/splunkforwarder/bin/splunkd" "btool": Operation not permitted
open
couldn't run "/opt/splunkforwarder/bin/splunkd" "btool": Operation not permitted
execve: Operation not permitted
while running command /opt/splunkforwarder/bin/splunkd

- checked permissions on folder, set owner to root:root

- selinux disabled

- no other security software present

[ntamcv]

cat /etc/os-release
NAME="Oracle Linux Server"
VERSION="8.3"
ID="ol"
ID_LIKE="fedora"
VARIANT="Server"
VARIANT_ID="server"
VERSION_ID="8.3"
PLATFORM_ID="platform:el8"
PRETTY_NAME="Oracle Linux Server 8.3"
ANSI_COLOR="0;31"
CPE_NAME="cpe:/o:oracle:linux:8:3:server"
HOME_URL="https://linux.oracle.com/"
BUG_REPORT_URL="https://bugzilla.oracle.com/"

ORACLE_BUGZILLA_PRODUCT="Oracle Linux 8"
ORACLE_BUGZILLA_PRODUCT_VERSION=8.3
ORACLE_SUPPORT_PRODUCT="Oracle Linux"
ORACLE_SUPPORT_PRODUCT_VERSION=8.3
$uname -a
Linux ####### 4.18.0-240.10.1.el8_3.x86_64 #1 SMP Mon Jan 4 12:04:12 PST 2021 x86_64 x86_64 x86_64 GNU/Linux

Forwarder version is 8.1.0.1 and also tried 8.0.4 - same problem.