I can get UUID from the one PC with Linux Live media ( dmidecode -t system

but can not get it from illumos/SmartOS(Triton) . Here is working output on Linux: bpa.st/BC5A

nikolam: What did smbios -t1 show?

[illumos-gate] 16385 rpcmod: should use kstat x_ksp->ks_lock -- Toomas Soome <tsoome⊙mc>

rmustacc, smbios: failed to load SMBIOS: System does not export an SMBIOS table

But works on Linux as seen

OK, interesting. We'll likely need some more information then. What'll help is to dump the entry information from Linux.

And are you booting with UEFI or the BIOS?

rmustacc, I chhecked, it is EFI, plus I desabled legacy now to make sure. Same.

rmustacc, Here is what full dmidecode output says on Linux: bpa.st/SKAA

[illumos-gate] 16344 -Wstrict-prototypes warnings about SIG_DFL, SIG_ERR, SIG_IGN and SIG_HOLD signal constants -- Richard Lowe <richlowe⊙rn>