报错信息：

Failed to start Install ABRT coredump hook
Failed to start Login Service

解决方案：

• 使用U盘系统，进入系统文件，找到服务器的硬盘
• 新建一个文件夹new（如果没有权限，使用sudo mkdir new），
• 将文件挂载到new上mount /dev/mapper/centos-root new，进入new
• 修改config文件vi etc/selinux/config，将SELINUX = enforcing 改为 SELINUX =disable，保存文件
• 重启即可

[root@ny01 ~]# vi /etc/selinux/config 

# This file controls the state of SELinux on the system.
# SELINUX= can take one of these three values:
#     enforcing - SELinux security policy is enforced.
#     permissive - SELinux prints warnings instead of enforcing.
#     disabled - No SELinux policy is loaded.
SELINUX=disable
# SELINUXTYPE= can take one of three values:
#     targeted - Targeted processes are protected,
#     minimum - Modification of targeted policy. Only selected processes are protected.
#     mls - Multi Level Security protection.
SELINUXTYPE=targeted