Mounting and unmounting SCO Gateway for NetWare filesystems

Guide to Gateways for LAN Servers
Chapter 3, Administering SCO Gateway for NetWare

SCO Gateway for NetWare has two filesystems: the automount filesystem (NUCAM) and the SCO Gateway for NetWare filesystem (NUCFS). For an overview, see ``About SCO Gateway for NetWare filesystems''.

NOTE: Before mounting a SCO Gateway for NetWare filesystem, you must become root and log into the appropriate NetWare server as supervisor.

Using the Filesystem Manager

To use the Filesystem Manager to mount SCO Gateway for NetWare filesystem, see ``Modifying filesystem mount configuration'' in the System Administration Guide.

Filesystem mount options (NUC)

When using the Filesystem Manager to add or modify a SCO Gateway for NetWare filesystem, select Advanced Mount Options to control the following options:

SUID and SGID file permissions: Specifies whether to honor or ignore setuid and setgid bits on a file when executing it. See ``SUID/SGID bits and security'' in the System Administration Guide, setuid(S), and setgid(S) for more information .
Group ID for creating files: Specifies whether to inherit the Group ID from the parent directory, or to use the Group ID from the calling process. For example, if the GID is inherited from the parent directory, any files created in a directory with the GID bin will also have the GID bin. If instead the GID is inherited from the calling process, the file may have a different GID, such as that of the user creating the file.

Mounting SCO Gateway for NetWare filesystems at boot time

At boot time, /etc/nuc automatically mounts the automount filesystem on /.NetWare.

The automount filesystem automatically mounts the SCO Gateway for NetWare filesystem on a /.NetWare subdirectory whenever a logged-in user accesses NetWare files. For more details, see ``About SCO Gateway for NetWare filesystems''.

Unlike other remote filesystems, no entry should be made in the /etc/default/filesys file for a SCO Gateway for NetWare filesystem mount at boot time. See filesys(F) for more information.

Mounting SCO Gateway for NetWare filesystems from the command line

Although the SCO Gateway for NetWare automount fileystem is mounted by SCO Gateway for NetWare at boot time, it can also be mounted from the command line. For example:

/etc/mount -f NUCAM /.NetWare /.NetWare

mounts the automount filesystem (NUCAM) on the mount point /.NetWare. For more details, see mount(ADM).

The SCO Gateway for NetWare filesystem (NUCFS) is also mounted with the mount command. For example:

/etc/mount -f NUCFS caracas:sys /netwarefiles

mounts the NetWare server caracas, volume sys on the directory /netwarefiles.

Unmounting SCO Gateway for NetWare filesystems from the command line

Although the SCO Gateway for NetWare automount fileystem is unmounted when SCO Gateway for NetWare stops, it can also be unmounted from the command line using umount(ADM). For example:

/etc/umount /.NetWare

unmounts the automount filesystem (NUCAM) from the mount point /.NetWare.

The SCO Gateway for NetWare filesystem (NUCFS) can also be unmounted from the command line. Execute:

unmount mount_point

where mount_point is the UNIX system directory mount location.

Enabling user mounting of SCO Gateway for NetWare filesystems

Normally, only the superuser can mount SCO Gateway for NetWare filesystems. However, users can mount selected filesystems using mnt(C).

To enable user mounting using the Filesystem Manager, see ``Enabling users to mount filesystems'' in the System Administration Guide.

To manually enable user mounting, create an entry in /etc/default/filesys for each filesystem to be mounted.

The following sample entry allows a user to mount the sys volume from the NetWare server dakar:

bdev=dakar:sys mountdir=/netwarefiles \
fsck=no rcfsck=no rcmount=no \
mount=yes fstyp=NUCFS

NFS exporting SCO Gateway for NetWare filesystems

To export SCO Gateway for NetWare filesystems using the Filesystem Manager, see ``Adding, modifying and removing filesystem export configuration'' in the Networking Guide.

NOTE: SCO Gateway for NetWare filesystems must be exported with the "root-access" privilege granted. For further information, see ``Setting export access permissions'' in the Networking Guide.

To manually export SCO Gateway for NetWare filesystems, create an entry in the /etc/exports file for each filesystem to be exported.

The following sample entry exports the SCO Gateway for NetWare filesystem mounted at /netwarefiles to the NFS clients apple and orange:

/netwarefiles -root=apple:orange

See exports(NF) for more details on this file.

Accessing SCO Gateway for NetWare files from an NFS client

To access an NFS exported SCO Gateway for NetWare filesystem from an NFS client, users must log into the appropriate NetWare server from the NFS server.

For example, a user logged into an NFS client must remotely log into the NFS fileserver and then use nwlogin(NWG) or the NetWare Access Manager to log into the appropriate NetWare server.

On the client system, the noac option to the mount command must be specified in /etc/default/filesys for the imported filesystem. For more information, see the manual page for mount(ADM).

NOTE: Because NFS is a stateless client/server protocol while the SCO Gateway for NetWare filesystem protocol is not, it is possible that a file which is being used by NFS has been flushed from the NUCFS cache. The cache variables described on the nwnfd(NWG) manual page may be tuned to avoid this problem.