UMP to OC instance upgrade failing

Products

• DX Infrastructure Management

Issue/Introduction

• Primary Hub was upgraded successfully to 20.3. from 9.2.0.
• Upgrade of the UMP to OC running on the separate robot, failed as the wasp did not start.
• A fresh install of operator console was initiated with robot 9.31,which also resulted in wasp failure.
  
  The wasp failing to start manifested in the logs as max restarts:
  Controller: Max. restarts reached for probe 'wasp' (command = <startup java>)

Cause

The /tmp folder was mounted with the no exec option for security reasons and the install files are copied to this directory from the primary and was unable to execute.

Environment

Release : 20.3.1

Component : UIM - INSTALL

Resolution

The no exec option was removed to allow the install to properly run and complete

To set the noexec
Code:
mount -o remount,noexec /tmp

To set it back
Code:
mount -o remount,exec /tmp