Hello,
Installer will fail with "JRE libraries are missing or not compatible" in case of two scenarios :
- not enough space in your default temporary directory: /tmp,
- /tmp was set to noexec (insufficient privileges)
Solution to both is presented in our doc: https://www.ibm.com/docs/en/license-metric-tool/9.2.0?topic=problems-installation-upgrade
Installation cannot be started, because the /tmp directory has the NOEXEC or NOSUID flag.