Hi @marc-ledent_9164 ,
Are you referring to the Machine UID from Manual Activation?
I'm not sure what the Machine UID looks like in BuildMaster 7 on Linux, but I do recall that early versions of our products sometimes couldn't generate the string on some hardware. I think that's fixed now.
The code is supposed to be based on the CPU (vendor ID, model, family, and stepping info) and the and the major version of the Inedo software (e.g. 5.1, 5.3, 2022, 2023).
Thanks,
Alana