centos7下怎么用yum安装oracle

[root@localhost yum.repos.d]# yum list |grep oracle

Repository base is listed more than once in the configuration

Repository updates is listed more than once in the configuration

Repository extras is listed more than once in the configuration

Repository centosplus is listed more than once in the configuration

oracle-rdbms-server-11gR2-preinstall.x86_64

kmod-oracleasm.x86_64 2.0.8-19.el7 base

oracle-database-server-12cR2-preinstall.x86_64

oracle-logos.noarch 70.0.3-4.0.7.el7 ol7_u0_base

oracleasm-support.x86_64 2.1.8-3.1.el7 ol7_u3_base

oraclelinux-release.x86_64 7:7.3-1.0.4.el7 ol7_u3_base

pcp-pmda-oracle.x86_64 3.11.8-7.el7 base

tuned-profiles-oracle.noarch 2.8.0-5.el7_4.2 updates

[root@localhost yum.repos.d]# yum install -y oracle-rdbms-server-11gR2-preinstall