The ISO image is purposely designed in a way that will prevent the bare-metal installation of SSB onto any hardware that was not obtained from One Identity.
The ISO is also designed in a way that would prevent the OS from booting on any hardware that was not obtained from One Identity. Installation of SSB is only supported on either hardware obtained from One Identity, or in a virtual machine (VM) environment.
Please refer to the Installation Guide which is available at
https://support.oneidentity.com/technical-documents/syslog-ng-store-box/7.1.0/installation-guide.
NOTE: This article is based upon the release that was current at the time that this was created, which was version 7.1.0, but it also applies to all previous versions of SSB.