docker启动时报错Error starting daemon: SELinux is not supported with the overlay2 graph driver on this kernel. Either boot into a newer kernel or disable selinux in docker (--selinux-enabled=false)
修改sudo vim /etc/sysconfig/docker, 中的--selinux-enabled为--selinux-enabled=false
如果需要, 可以修改, 不强求/etc/selinux/config中SELINUX的值为disabled.