Mounting NFS resources with the mount command
To mount a remote resource, provided the resource is shared and you can
reach the server over the network, use the mount command. This
may be done any time during client operations. However, you must be a
privileged user to use mount.
To mount NFS resources, do the following:
-
Create a mount point for the remote resource using the mkdir
command.
NOTE:
As with a local mount, if you mount a remote resource on an existing
directory that contains files and subdirectories, the contents of the
directory are obscured.
-
The syntax of the mount command, as it relates to an NFS
mount, is:
mount [-F nfs] [-o specific_options] {special | mount_point}
mount [-F nfs] [-o specific_options] special mount_point
Use the first form if you have entries in the /etc/vfstab file.
See the
mount(1Mnfs)
manual page for details.
Resources accessed through the mount command stay mounted unless
you unmount them with the umount command or exit init state 3.
Also, if you exit and reenter init state 3, the resource will no longer be
mounted (unless you edited the vfstab file to mount the resource
automatically).
When you mount an NFS resource, we suggest that you do the following:
-
Use the hard option with any resource you mount read-write.
Then, if a user is writing to a file when the server goes down, the write
will continue when the server comes up again, and nothing will be lost.
Refer to
``Hard and soft mounts''
for details of hard and soft NFS mounts.
-
Use the nosuid option with any resource you mount read-write,
unless you have good reasons to do otherwise.
See
``Examples: mounting resources''
for an illustration of the mount command in use.
Hard and soft mounts
NFS supports two types of mounts -- hard mounts and soft mounts. If
a mount is a hard mount, an NFS request affecting any part of the
mounted resource is issued repeatedly until the request is satisfied
(for example, the server crashes and comes back up at a later time). When
a mount is a soft mount, an NFS request returns an error if it cannot
be satisfied (for example, the server is down), then quits.
Examples: mounting resources
NOTE:
The -F nfs option specified in these examples is not
strictly required and could be omitted.
Here it serves merely as a reminder of the filesystem type.
-
You want to soft mount online manual pages from remote machine
dancer on the local directory /usr/man. You want the
pages mounted read-only. Type the following command:
mount -F nfs -o ro,soft dancer:/usr/man /usr/man/
-
You want to hard mount the resource /usr/local from the remote
machine dancer on the mount-point /usr/local/dancer.
You want the resource mounted read-write, with the set-uid bits ignored
and the keyboard interrupt enabled. Enter the following, all on one line:
mount -F nfs -o hard,nosuid,intr dancer:/usr/local /usr/local/dancer
© 2004 The SCO Group, Inc. All rights reserved.
UnixWare 7 Release 7.1.4 - 22 April 2004