MOUNT_9P(8) System Manager's Manual MOUNT_9P(8)

mount_9p —
mount a file server using the 9P resource sharing protocol

mount_9p [-su] [-o options] [-p port] [user@]host[:path] mount_point

mount_9p -c [-su] [-o options] device mount_point

The mount_9p program is used to mount a file hierarchy served with the Plan 9 resource sharing protocol 9P. After the file system is mounted, the files on the remote host will be accessed using the credentials of the user named user and whatever UID the user happens to have on the remote server. If path is supplied, it is used as the mount rootpath on the remote host. path must be an absolute path.

The -c option enables to mount a file system exported by a VM host through a character device file device backed by the vio9p(4) driver. See vio9p(4) for more information.

The following options are available:

Interpret special as a device name. See vio9p(4).
options
Mount options. See documentation for the -o option to mount(8).
port
Use the specified TCP port. By default mount_9p uses port 564 (9pfs). Another useful port is 6666 (styx), used by Inferno operating system.
Run in the foreground. Useful for debugging.
Use 9P2000.u protocol that includes extensions to better support Unix environments.

puffs(3), puffs(4), vio9p(4), mount(8)

9P: The Simple Distributed File System from Bell Labs, http://9p.cat-v.org/.

RFC and standards documents relating the 9P protocol, http://ericvh.github.io/9p-rfc/.

The mount_9p utility first appeared in NetBSD 5.0.

Experimental 9P2000.u support appeared in NetBSD 9.0.

The vio9p(4) support appeared in NetBSD 10.0.

Authentication is not supported.

Permissions are not handled well.

Error code handling is missing for 9P2000.

9P2000.u support doesn't use extension fields.

May 30, 2020 NetBSD 9.99