Red Hat Satellite Installation or upgrade fails with the exception (Puppet::Error: Cannot determine basic system flavour)

Issue

• Installing or upgrading Red Hat Satellite server fails with the below error:

  Sep 20 15:42:06 satellite65.sysmgmt.lan systemd[1]: Starting puppetserver Service...
  Sep 20 15:42:27 satellite65.sysmgmt.lan puppetserver[13270]: Failed to load feature test for posix: can't find user for 0
  Sep 20 15:42:27 satellite65.sysmgmt.lan puppetserver[13270]: Cannot run on Microsoft Windows without the win32-process, win32-dir and win32-service gems: Win32API only supported on win32
  Sep 20 15:42:27 satellite65.sysmgmt.lan puppetserver[13270]: Puppet::Error: Cannot determine basic system flavour
  Sep 20 15:42:27 satellite65.sysmgmt.lan puppetserver[13270]: (root) at /opt/puppetlabs/puppet/lib/ruby/vendor_ruby/puppet/feature/base.rb:40
  Sep 20 15:42:27 satellite65.sysmgmt.lan puppetserver[13270]: require at org/jruby/RubyKernel.java:1040
  

• puppet service fails to start :

  [root@satellite ~]# systemctl start puppetserver.service -l
  Job for puppetserver.service failed because the control process exited with error code. See "systemctl status puppetserver.service" and "journalctl -xe" for 
  details.
  [root@satellite ~]# systemctl status puppetserver.service -l
  ● puppetserver.service - puppetserver Service
    Loaded: loaded (/usr/lib/systemd/system/puppetserver.service; disabled; vendor preset: disabled)
    Active: activating (start) since Fri 2018-03-02 18:27:50 IST; 7s ago
   Control: 13622 (bash)
    CGroup: /system.slice/puppetserver.service
            ├─13622 bash /opt/puppetlabs/server/apps/puppetserver/cli/apps/start
            ├─13629 /usr/bin/java -Xms2g -Xmx2g -XX:MaxPermSize=256m -Djava.security.egd=/dev/urandom -XX:OnOutOfMemoryError=kill -9 %p -cp 
  /opt/puppetlabs/server/apps/puppetserver/puppet-server-release.jar clojure.main -m puppetlabs.trapperkeeper.main --config 
  /etc/puppetlabs/puppetserver/conf.d --bootstrap-config 
  /etc/puppetlabs/puppetserver/services.d/,/opt/puppetlabs/server/apps/puppetserver/config/services.d/ --restart-file 
  /opt/puppetlabs/server/data/puppetserver/restartcounter
            └─13660 sleep 1
  
  Mar 02 18:27:50 satellite.redhat.com systemd[1]: Starting puppetserver Service...
  Mar 02 18:27:50 satellite.redhat.com puppetserver[13622]: OpenJDK 64-Bit Server VM warning: ignoring option MaxPermSize=256m; support was removed in 8.0
  

For more KB articles/solutions related to Red Hat Satellite 6.x Installation/Upgrade/Update Issues, please refer to the Red Hat Satellite Consolidated Troubleshooting Article for Red Hat Satellite 6.x Installation/Upgrade/Update Issues.