The shared read-only part of the operating system is shared via NFS.
Configure NFS to export the root/ and
snapshot/ directories by adding them to
/etc/exports. For example:
Replace * with one of the hostname
formats discussed in Section 22.3.2 Hostname Formats. Make
the hostname declaration as specific as possible, so unwanted systems
can not access the NFS mount.
If the NFS service is not running, start it:
If the NFS service is already running, reload the configuration file: