Let's say I'm deploying hundreds of warehoused devices employing an H5-based Orange Pi Zero Plus, and I need a reliable distinct identifier for each.

 

In another application we're using the MAC address, but that seems not to be EEPROM-ed on the OPiZ+.  So, okay, SOC Unique ID has been mentioned elsewhere (MAC generation on the OPiZ+), but where is it available?  cat /proc/cpuinfo does not include "Serial".  lshw has a "serial" but I'm not sure that's reliable (I've got a Beaglebone that doesn't show one - and it says /proc/cpuinfo Serial: 00000000).

 

So what's a good low-cost (i.e. not by launching Perl scripts) way to obtain the unique CPU identifier - if there really is one?  Thanks.

 

The H5 has a 1KB security ID at 0x01C14000 to 0x01C143FF. You could try using that for the unique CPU identifier.

 

-JB

@JBrooksBSI