Hi all,
I know this topic has been covered in various bug reports and I have read some of the solutions. I am getting the message “please insert the medium named core release" when trying to install things such as a RPM or upgrading Kernel. I installed OS on a Live USB, when it came to the stage during setup/install to select what to install core release was ticket and greyed out which I assumed indicated that it is essential and would be installed by default. As for selecting additional media via http FTP this option did not work for me. Some have mentioned when that message comes up to install to boot disk/ USB and hit enter and this would resolve the issue. I have tried this with a USB (did not work) I have not tried this with a DVD. Not sure what to do??
Thanks