我们正在尝试使用yum在Scientific Linux release 6.2上安装Oracle11g，并且出现错误
这是命令：
yum install oracle-rdbms-server-11gR2-preinstall 这是输出错误：
warning: rpmts_HdrFromFdno: Header V3 RSA/SHA256 Signature, key ID ec551f03: NOKEY Retrieving key from file:///etc/pki/rpm-gpg/RPM-GPG-KEY-oracle GPG key retrieval failed: [Errno 14] Could not open/read file:///etc/pki/rpm-gpg/RPM-GPG-KEY-oracle
wget https://public-yum.oracle.com/RPM-GPG-KEY-oracle-ol6 -O /etc/pki/rpm-gpg/RPM-GPG-KEY-oracle
运行上面的命令。 我刚刚也是这样做的。
[编辑]或者转到链接http://public-yum.oracle.com/向下滚动，以获得与您的操作系统兼容的链接。
尝试这个
wget –no-check-certificate https://public-yum.oracle.com/RPM-GPG-KEY-oracle-ol6 -O / etc / pki / rpm-gpg / RPM-GPG-KEY-oracle
检查下面的包是否安装
1）rpm -q epel-release
软件包epel-release没有安装
然后安装它
2）yum安装包epel-release *
> 3) wget https://public-yum.oracle.com/RPM-GPG-KEY-oracle-ol7 -O /etc/pki/rpm-gpg/RPM-GPG-KEY-oracle --no-check-certificate 4)wget https://public-yum.oracle.com/RPM-GPG-KEY-oracle-ol7 -O /etc/pki/rpm-gpg/RPM-GPG-KEY-oracle --no-check-certificate