--> Finished Dependency Resolution
Error: Package: nfs-ganesha-selinux-3.4-2.1.el7.bclinux.noarch (/nfs-ganesha-selinux-3.4-2.1.el7.bclinux.noarch)
Requires: selinux-policy-base >= 3.13.1-229.el7_6.12
Installed: selinux-policy-targeted-3.13.1-229.el7.noarch (@anaconda/7.6)
selinux-policy-base = 3.13.1-229.el7
Available: selinux-policy-minimum-3.13.1-229.el7.noarch (local)
selinux-policy-base = 3.13.1-229.el7
Available: selinux-policy-mls-3.13.1-229.el7.noarch (local)
selinux-policy-base = 3.13.1-229.el7
Error: Package: nfs-ganesha-selinux-3.4-2.1.el7.bclinux.noarch (/nfs-ganesha-selinux-3.4-2.1.el7.bclinux.noarch)
Requires: selinux-policy >= 3.13.1-229.el7_6.12
Installed: selinux-policy-3.13.1-229.el7.noarch (@anaconda/7.6)
selinux-policy = 3.13.1-229.el7
You could try using --skip-broken to work around the problem
You could try running: rpm -Va --nofiles --nodigest
1、下载selinux-policy升级版本及其依赖
yum -y install selinux-policy --downloadonly --downloaddir /opt/src/selinux
2、安装selinux-policy及其依赖
yum安装
yum localinstall *.rpm
升级安装
rpm -Uvh *.rpm
3、安装NFS
yum localinstall *.rpm
还有，你是用光盘的镜像源吗？我看到有个提示7.6？
可以直接使用高版本一点的源，
有包冲突，可尝试升级一下，如果不行，可卸载旧的去安装新的，这个包没对系统造成影响，放心去卸载，再重新安装，
下载selinux-policy升级版本