> > Good morning, I am trying to install binutils-devel on Centos Linux 5.5 so > that we can obtain lib liberty required by the oprofile-0.9.6 Linux > profiler. > Using root , I enter: yum local install > binutils-devel-2.20.51.0.7-6.fc14.i686.rpm. Then I get the message: So, why this package, doesn't it work with the binutils-devel package from CentOS 5.x? If it does you could just 'yum install binutils-devel'. > Public key for binutils-devel-2.20.51.0.7-6.fc14.i686.rpm is not > installed. Please tell me where I get the Public key for > binutils-devel-2.20.51.0.7-6.fc14.i686.rpm . Thank you. I'm quite sure this will not work even with the correct public key, which you should get where you got the binutils-devel-2.20.51.0.7-6.fc14.i686.rpm from, most likely a fedora mirror. But I think the package won't install on CentOS 5.x. Simon