5.8.2. Changing the Default Context

As mentioned in Section 5.7, “The file_t and default_t Types”, on file systems that support extended attributes, when a file that lacks an SELinux context on disk is accessed, it is treated as if it had a default context as defined by SELinux policy. In common policies, this default context uses the file_t type. If it is desirable to use a different default context, mount the file system with the defcontext option.

The following example mounts a newly-created file system (on /dev/sda2) to the newly-created /test/ directory. It assumes that there are no rules in /etc/selinux/targeted/contexts/files/ that define a context for the /test/ directory:

~]# mount /dev/sda2 /test/ -o defcontext="system_u:object_r:samba_share_t:s0"

In this example: