[BioC] repositories2

[Jeff Gentry]

> About the CRAN option in repositories2, when I use a plain vanilla CRAN 
> mirror I get the error "does not seem to have a valid repository, 
> skipping" .
> Is this because reposTools looks for a "repdatadesc.rda" file which is 
> not found in general on CRAN repositories?

Yep.  The two aren't compatable - reposTools repositories require their
own data files (repdatadesc.rda and replisting) and the builtin R
functions require their own (PACKAGES).  The CRAN repository at
www.bioconductor.org is the only one that I know of that provides a
reposTools style repository for the CRAN packages.

-J