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> However, Canonical's policy instead says you must remove all of Canonical's trademarks. Which is perfectly acceptable. Red Hat and SUSE apply similar restri

• JoshTriplett 11y ago
  > Which is perfectly acceptable. It's perfectly legal, which is a different thing. The entire premise of this article is that it isn't "perfectly acceptable", and causes serious practical problems. > Red Hat and SUSE apply similar restrictions, hence why CentOS is a thing... CentOS goes further than trademark law requires, and the nature of their project means they need to rebuild everything anyway. While I don't know anything about SUSE's trademark policy, Red Hat has a far less restrictive one.
• lambda 11y ago
  No, Red Hat and SuSE do not apply such onerous restrictions. Canonical says that you must rebuild the binaries, even if those binaries don't contain any Canonical trademarks. Red Hat merely requires that you remove the trademarks in the actual branding packages; they even explicitly state which packages those are, to make it very clear. From their trademark guidelines (https://www.redhat.com/f/pdf/corp/RH-3573_284204_TM_Gd.pdf https://www.redhat.com/f/pdf/corp/RH-3573_284204_TM_Gd.pdf): You must modify the files identified as REDHAT-LOGOS and ANACONDA-IMAGES so as to remove all use of images containing the “Red Hat” trademark or Red Hat’s Shadowman logo. Note that mere deletion of these files may corrupt the software. Canonical requires that you rebuild every binary package in the distro (or at least, they don't qualify at all which binary packages have to be rebuilt when saying that you must rebuild binary packages). This is a far different, and much more onerous, requirement. Any redistribution of modified versions of Ubuntu must be approved, certified or provided by Canonical if you are going to associate it with the Trademarks. Otherwise you must remove and replace the Trademarks and will need to recompile the source code to create your own binaries. This does not affect your rights under any open source licence applicable to any of the components of Ubuntu. If you need us to approve, certify or provide modified versions for redistribution you will require a licence agreement from Canonical, for which you may be required to pay. For further information, please contact us (as set out below). Any attempt to clarify with Canonical to determine whether they just mean rebuilding those packages that contain branding, or how this interacts with packages that are not covered by copyleft licenses (that forbid applying extra restrictions like this recompilation requirement), have been met with silence (at least publicly). The Free Software Foundation and Software Freedom Conservancy have put out statements on this matter, criticizing Canonical for this vague policy: https://www.fsf.org/news/canonical-updated-licensing-terms https://www.fsf.org/news/canonical-updated-licensing-terms https://sfconservancy.org/news/2015/jul/15/ubuntu-ip-policy/ https://sfconservancy.org/news/2015/jul/15/ubuntu-ip-policy/ Whether this requirement is actually enforceable is another question. Given that Canonical ships copyright notices saying that the software may be distributed in source or binary form, and the only use of the trademarks is in some ancillary metadata on the packages rather than included in the packages themselves, it's unclear if this would actually be considered infringing on their trademark. But the FUD caused by their refusal to clarify this point means that it's a risk for anyone to try doing so; it's possible that a court could decide that it is likely to cause confusion, even in just the form of ancillary metadata in binary packages.