Running User Experience Patch on ITSM server with non-root user on Linux Platform and install failed with below error

EVERE,com.bmc.install.product.myitsmpatch.RikStatement,
  THROWABLE EVENT {Description=[Program execution failed due to return code -1],Detail=[Program not completed]},
  Throwable=[com.bmc.install.utility.language.syntax.statement.extension.StatementDelegateReturnCodeException: AR driver file /remedy/bmc/Smart_IT_MyIT_Patch/SmartITPatch/DDL/drm/IncidentInterface_8.1.drm Exception running command: Cann
ot run program "/tmp/Utilities/rik/driver" (in directory "/remedy/bmc/Smart_IT_MyIT_Patch/SmartITPatch"): error=13, Permission denied
 

Though all the permission listed in below document followed, the install still failed

https://docs.bmc.com/docs/display/public/myit32/Installing+Smart+IT+and+BMC+MyIT+as+a+non-root+user

1. Ensure that the non-root user account has read, write, and execute (rwx) access to the following directories and their files:
   • .profile file in your home directory (write and execute permission)
   • opt/bmc
   • /tmp
   • JREHomeDirectory/bin (read and execute permission)
   • JREHomeDirectory/lib (read and execute permission)
2. If you do not have an /opt/bmc directory, create it to complete the installation.
3. Ensure that the open files limit [ ulimit –n ] section of the shell is set to 16384.
   To do so, modify the /etc/security/limits.conf file.

Cause # It was unable to execute the driver command within /tmp/Utilities/Rik/driver.exe with SE Linux enabled

Resolution # SE Linux was enabled and disabling SELinux took care of the issue and install went successful.

Other workaround is to point out IATEMPDIR during install to point different temp directory than /tmp so that user do not have to disable SE Linux configuration.

Note: By default with SELinux enabled, you cannot run any binary from /tmp directory.