Hello, Marcus: I encountered the following problem while cross-installing the Hurd from RedHat box: /hurd/dpkg-hurd: [: too many arguments
Investigation showed that the version of "test" supplied with RedHat was unhappy with "==" syntax in comparisons. Changing "==" with "=" solved the problem and installation ran flawlessly. I believe that the usage of "=" is more correct and portable, so could you, please, consider incorporating the change into dpkg-hurd. Regards, Alexander.

