rpm -Uv ftp://ftp.pbone.net/mirror/ftp5.gwdg.de/pub/opensuse/repositories/Application:/Geo/CentOS_6/x86_64/cmake-3.0.0-143.1.x86_64.rpm Hope this helps to somebody. If you have any problems with it let me know. Have fun.

Once you have both the cmake and the cmake3 package installed on your machine, you can use update-alternatives to switch between both packages.

Use the alternatives command to register both installations:

$ sudo alternatives --install /usr/local/bin/cmake cmake /usr/bin/cmake 10 \
--slave /usr/local/bin/ctest ctest /usr/bin/ctest \
--slave /usr/local/bin/cpack cpack /usr/bin/cpack \
--slave /usr/local/bin/ccmake ccmake /usr/bin/ccmake \
--family cmake

$ sudo alternatives --install /usr/local/bin/cmake cmake /usr/bin/cmake3 20 \
--slave /usr/local/bin/ctest ctest /usr/bin/ctest3 \
--slave /usr/local/bin/cpack cpack /usr/bin/cpack3 \
--slave /usr/local/bin/ccmake ccmake /usr/bin/ccmake3 \
--family cmake

After these two commands, cmake3 will be invoked by default, when you enter cmake from a bash prompt or start a bash script. The commands also take care of registering a few secondary commands like ctest which need to be switched along with cmake.

If you need to switch back to cmake 2.8 as the default, run the following command:

$ sudo alternatives --config cmake

There are 2 programs which provide 'cmake'.

  Selection    Command
-----------------------------------------------
   1           cmake (/usr/bin/cmake)
*+ 2           cmake (/usr/bin/cmake3)

Enter to keep the current selection[+], or type selection number: 1