this is the ls command in my /etc/yum.repos.d/ directory: CentOS-Base.repo CentOS-Debuginfo.repo CentOS-Media.repo CentOS-Vault.repo epel.repo epel-testing.repo which repository I have to enable? 2013/10/10 Reindl Harald <h.reindl at thelounge.net> > > > Am 10.10.2013 15:09, schrieb Paolo De Michele: > > if I try: > > > > # yum install kernel-headers > > Loaded plugins: fastestmirror, security > > Loading mirror speeds from cached hostfile > > * base: ftp.hosteurope.de > > * epel: mirror.de.leaseweb.net > > * extras: ftp.hosteurope.de > > * updates: ftp.hosteurope.de > > Setting up Install Process > > No package kernel-headers available. > > Error: Nothing to do > > > > why? > > because you most likely excluded it somewhere > in /etc/yum.repos.d/ or /etc/yum.conf > > >