问题：缺少共享库文件
sudo: error while loading shared libraries: libaudit.so.1: cannot open shared object file: No such file or directory
解决思路：
1.准备audit-libs安装包
audit-libs-2.8.4-4.el7.x86_64.rpm
2.想办法上传到该服务器内的/mnt目录下
# more /mnt/audit-libs-2.8.4-4.el7.x86_64.rpm
3.重启服务器进入单用户模式或者救援模式下进行安装audit-libs安装包
mnt/# rpm -ivh audit-libs-2.8.4-4.el7.x86_64.rpm
4.安装完成后重启服务器
# reroot
