I have uploaded Linux build again, please use it, it must write "b737" in the log at the beginning which means latest build number.
rxboost and strap do not work in linux correct?
Correct, you can use amdmemtweak or patched rxboost tool from smos, they locked to their OS by default
are the values the same in smos for rxboost like in win version of Claymor?
Looks like hiveos just released the upgrade of claymore 14.6 in their latest release and in their web os control panel there is a box to just put in the parameter "30" and it will apply the rxboost automatically for you without any other commands needed.
There is a video outlining this of amd tweak -> rxboost on their ANN thread if you just want to see if you are needing these straps or not.
They even have a built-in utility for flashing vbios so you should be able to unflash if needed in their software suite.