KB442151: Error "Unable to find a valid MicroStrategy installation to apply" occurred while applying hot fix to MicroStrategy running on Linux OS

SYMPTOM
Below error occurs while applying hot fix to Strategy running on Linux OS by running setupHF.sh.
 

Unable to find a valid Strategy installation to apply. 
Ensure that a valid candidate Strategy installation exists. 
The Installation will terminate now.

 The installation fails due to this error. 
CAUSE
A possible reason is that , "_uninstall" directory does not exist in the original directory, /MicroStrategy/install/
The folder might have been moved or deleted.
If this folder could not be detected, the installation would fail. 
 
ACTION
If it has been moved to other directory, recover _uninstall directory back to original position and re-run setupHF.sh.
If it has been deleted, users have to uninstall Strategy and re-install Strategy GA to bring it back. And then apply the hot fix. 
Related Articles for other possible reasons:

• Confirm GA version has been installed before hot fix is applied. 

https://community.Strategy.com/s/article/KB42856-Error-Unable-to-find-a-valid-Strategy-installation-to-apply-Ensure-that-a-valid-candidate-Strategy-installation-exists-The-Installation-will-termin

• Confirm the same user account who installed Strategy has been used to apply hot fix. 

https://community.Strategy.com/s/article/KB43990-Error-Unable-to-find-a-valid-Strategy-installations-file-opt-apps-Strategy-mstrinstalls-xml-occurring-when-trying-to-apply-hotfix-on-9-x-10-x-GA-on
https://community.Strategy.com/s/article/KB42408-quot-Unable-to-find-a-valid-Strategy-installations
KB442151