I have a new installation for OpenSuse 13.2. Try to use YaST2 to install packages, I got the following error:

Cannot access installation media
Download (curl) error for 'http://download.opensuse.org/distribution/13.2/repo/oss/repodata/repomd.xml
Error code: Unrecognized error
Error message: Empty reply from server

I tried to replace download.opensuse.org by a different mirror but got the same error.
Navigating to the mirror using the browser, I could not see a file named 'repodata/repomd.xml' under .../oss/

What did I do wrong? Any suggestions?