The propertyTag executable relies on the "dcdbas" kernel-mode driver. This driver is included in Linux kernels starting at 2.6.14. A dkms package is provided in the libsmbios package for earlier 2.6.x kernels.
$ ./propertyTag
Existing Property Tag:
$ ./propertyTagS -s "New property ownership tag."
Existing Property Ownership Tag:
Changing Property Ownership Tag: New property ownership tag.
Change Successful. The changes may not take effect until reboot, depending on
system type.
1.5.6