Comment 10 for bug 1910555

I had the same problem and submitted it as Bug #1910875. I didn't see this bug at first because I got a slightly different error message ("post-installation script subprocess returned error exit status 10"). But it's definitely the same bug and installing the 6.30.223.271+bdcom-0ubuntu7 version of bcmwl-kernel-source worked for me. So in one sense this bug has already been patched, but I would say that the real bug is that the patch didn't get included in the focal repository.