A bit of a followup on

Question

A bit of a followup on in < C08V7KTJB|general> for Mac I don t quite understand where to `gethostuuid ` Is it a MacOS api or something that returns a uuid that the device already generated at some point

zwass · Answer

Yes see <https www unix com man page osx 2 gethostuuid >

zwass · Answer

In my experience the hardware UUIDs generated by macOS are quite stable

Andrew Zick · Answer

Ah you ve predicted my second question which isn t so much looking for an answer as saying hey I ve run into a situation where two MacOS devices have the same uuid is this odd

zwass · Answer

Yes I would say that is very odd

zwass · Answer

Less odd if they are VMs though

Andrew Zick · Answer

Right unfortunately I ll have to dig in more as I don t think VMs are to blame Thank you

Brian Bergstrand · Answer

The only time the hardware UUID will change on Macs is if the motherboard is replaced

Grigory Emelianov · Answer

I ran into this issue as well on some tests Really weird But when checking the real UUID on the device they were different