Unrecognized / Unsupported Operating System or Architecture – OMSA install

Previously we discussed how to install Dell OpenManage Server Administrator on a Linux Server using the installation script ./setup.sh.

This can lead to the following error on Non-RHEL system (yes, even if they are RHEL variants). For this example, I used the packaged version of Dell  OMSA to install on a Linux CENTOS 7.5 M420 blade.

# ./setup.sh
Unrecognized / Unsupported Operating System or Architecture. This script cannot
continue with the installation. Select rpms from the OS folder in
the media that closely matches this Operating System to continue
with the manual install.

The way to install OMSA if you are getting this error, is to by-pass the script. One way to do it (for a typical install) is to change to the RPM directory (after extracting the OMSA tar.gz file) and install all available RPMS.

For example:

# cd Downloads/OMSA/linux/RPMS/supportRPMS/srvadmin/RHEL7/x86_64/

and then installing all available packages:

# rpm -ivh *.rpm
Preparing... ################################# [100%]
Updating / installing..

Once this is completed, the Dell OpenManage Server Administrator application will be installed on your system.

The rest of the steps will be the “usual”, such as starting the OMSA services and adding port 1311 to your firewall exceptions.

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