Workaround TeTeX installation failure? (TeXMacs)

[Chuck White]

The standard Cygwin installation fails to completely install TeTeX (2.0.2-1
or 2.0.2-13), which causes TeXMacs installation to fail (required fonts not
found in nonexistent directories). In particular, the last part of the
installation script calls for creating a series of directories that mkdir
fails to create. Running "texconfig init" in an XWindow consistently
reproduces these errors ... in my last several installations. Since I've
only been 'using' Linux for less than 24 hours, I'd appreciate some help in
working out what is probably a trivial problem... to somebody else. Thanks.