Mandrake 8.1 binary rpm's are not compatible with earlier versions of Mandrake, which I can unfortunately no longer support. All packages are signed, public signature can be found on public key rings (use the 1024D/520A9C7E one, made 28 September 2000). If you have a different version of Mandrake you can build the rpm's from the mandrake SRPM's, as explained below. If you already have R rpm's installed please UNINSTALL them BEFORE installing the new version: it somehow seems possible to upgrade R without upgrading R-recommended (probably an rpm bug). I suggest: # remove old packages rpm -e R-base R-recommended followed by # install new packages rpm -i R-base* R-recommended* If you try to upgrade R-base without upgrading R-recommended I will NOT be responsible for any consequences (irreversible corruption of your rpm database, mold growing on your CPU, mass hallucinations or whatever). In fact, I will not be liable for any consequences in any case ! Anyone who would like to contribute this package as a binary for earlier versions of Mandrake can do so by downloading the src.rpm and recompiling it. This can be done as follows: - you must have a series of development packages installed on your system: rpm-devel, glibc-devel, ncurses-devel, readline-devel, libtermcap-devel, zlib-devel, XFree86-devel, libjpeg-devel, libpng-devel. Names of the packages vary between distributions: for instance on mandrake 8.1 libjpeg-devel is called libjpeg62-devel; - you also need tcl, tk and tetex to be installed; - on mandrake site you will find indications on how to build rpm's without having to log on as root: just build the correct directory tree in your home directory ( ~/rpm/BUILD RPMS SOURCES SPECS SRPMS tmp) and create and edit files ~/.rpmmacros and ~/.rpmrc; - it would be a good idea to have gnupg installed too, and to sign contributed packages; (all this sounds long, but only needs to be done once). - at this point the command rpm -i R-base-*src.rpm will install the spec file in the SPEC directory (the system one if you are working as root, your local one in the second case) and the other stuff in the SOURCES directory; go to the SPEC directory and give the command rpm -bb R-base.spec after a longish period of hectic work ending with 'exit 0' you will find your rpm ready to sign, install and of course contribute in the RPM/i586 directory. Write to Martyn Plummer if you would like to contribute your rpm. Thank you. Michele Alzetta