That has little practical use, so can't be commercialised, but lots of people do that as a hobby, and there is stuff happening in that scene. TurboHercules tried to get the EU to force IBM into licensing their OSes to run on Hercules, but they didn't succeed.īy contrast, you are legally allowed to run old versions, 1970s vintage–in those days, IBM chose to release its operating systems into the public domain.
#Installing z/vm on hercules license#
This is where TurboHercules ran into problems–they wanted to run current IBM OS versions under Hercules, but IBM says that violates their license agreements. IBM will sell you an equivalent technology which you can legally run their OSes under, an x86 mainframe emulator called zPDT, but it is quite expensive (I have heard figures quoted like USD 5000). IBM's licensing agreements don't allow you to run current versions of its mainframe OSes under Hercules. (Disclaimer: I'm not a lawyer, I don't work for IBM, etc.) Attempts to commercialise it (TurboHercules) ran into legal trouble with IBM, but to my knowledge the open source Hercules project hasn't faced any issues.
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