NFS Server

To turn the MBWE into a NFS server, follow the following steps:

Please note, NFS is no longer included on newer firmware versions 2.00.15+. You can recover NFS from the backup images in the rescue thread.

Installation

In /etc/init.d/, create the following script (taken from WD Online Forum) to start/stop NFS services:

#!/bin/sh
#
# Start NFS
#

start() {
    echo "Starting NFS"
    /sbin/modprobe nfsd
    sleep 2
    start-stop-daemon --start --exec /sbin/portmap
    start-stop-daemon --start --exec /usr/sbin/rpc.mountd
    start-stop-daemon --start --exec /usr/sbin/rpc.nfsd
    start-stop-daemon --start --exec /usr/sbin/rpc.statd
    start-stop-daemon --start --exec /usr/sbin/rpc.lockd
    start-stop-daemon --start --exec /usr/sbin/rpc.rquotad
    /usr/sbin/exportfs -a        # explicit exportfs is required!
}

stop() {
    echo "Stopping NFS"
    start-stop-daemon --stop --exec /usr/sbin/rpc.rquotad
    start-stop-daemon --stop --exec /usr/sbin/rpc.lockd
    start-stop-daemon --stop --exec /usr/sbin/rpc.statd
    start-stop-daemon --stop --exec /usr/sbin/rpc.nfsd
    start-stop-daemon --stop --exec /usr/sbin/rpc.mountd
    start-stop-daemon --stop --exec /sbin/portmap
}

restart() {
    stop
    start
}

case "$1" in
    start)
        start
    ;;
    stop)
        stop
    ;;
    restart)
        restart
    ;;
    cleanup)
    ;;
    *)
        echo $"Usage: $0 {start|stop|restart}"
        exit 1
esac

exit $?

A good name for the script would be nfs.sh. Don't forget to make it executable with a chmod 755 /etc/init.d/nfs.sh .

The NFS portmap version installed in the mybook requires that user "rpc" and group "rpc" exists, but you have to create it yourself. Run the following commands:

[root@nas init.d]# addgroup rpc
[root@nas init.d]# adduser -h /var/lib/nfs -g "RPC Service User" -s /sbin/nologin -G rpc -D rpc

If you want to verify the user/group was created, examine /etc/passwd and /etc/group:

$ grep rpc /etc/passwd
rpc:x:1003:1003:RPC Service User:/var/lib/nfs:/sbin/nologin

$ grep rpc /etc/group
rpc:x:1003:

Choosing Shares

Finally, you'll need to create/edit the /etc/exports file to contain something like:

/shares/internal/PUBLIC    192.168.0.0/16(rw,sync,insecure)

The above subnet should work for most people, but change it to match if necessary. Note that there is no space between the subnet address and the opening parenthesis. Also make sure the name resolution of the client in /etc/hosts is correct. If you edit the /etc/exports file whilst NFS service is running, you can apply changes to the live sever by running exportfs -a (as root).

Parameter insecure seems to be necessary to fix the following message (known to be a problem for mac clients):

Feb 14 00:19:58 nas user.warn kernel: nfsd: request from insecure port (192.168.1.84:49614)!
Feb 14 00:21:17 nas user.notice syslog: authenticated mount request from cslaptop.config:1016 for /shares/internal/PUBLIC (/shares/internal/PUBLIC)

Start the service and you will be in business!

[root@nas init.d]# /etc/init.d/nfs.sh start
Starting NFS
[root@nas init.d]#

Autostarting NFS

To have nfs.sh autostart, edit the file /etc/init.d/post_network_start.sh. Be particularly careful, as if you mess up this file the boot scripts may hang. I would advise starting nfs.sh below SSHD and commenting out mionet.sh if you do not use the service.

#!/bin/sh
#
<snip>

SCRIPTS_PATH=/etc/init.d
STATUS_FILES_PATH=/var/run
POST_NETWORK_STARTED_FILE=$STATUS_FILES_PATH/post_network_started

start() {
        if [ ! -e "$POST_NETWORK_STARTED_FILE" ]
        then
                $SCRIPTS_PATH/crond.sh start
#               $SCRIPTS_PATH/mionet.sh start
                $SCRIPTS_PATH/nfs.sh start        # Add NFS service!!!
                touch $POST_NETWORK_STARTED_FILE
        fi
}

stop() {
        if [ -e "$POST_NETWORK_STARTED_FILE" ]
        then
#               $SCRIPTS_PATH/mionet.sh stop
                $SCRIPTS_PATH/crond.sh stop
                $SCRIPTS_PATH/nfs.sh stop        # Add NFS services!!!
                rm $POST_NETWORK_STARTED_FILE
        fi
}

restart() {
        stop
        start
}

cleanup() {
        rm -f $POST_NETWORK_STARTED_FILE
        $SCRIPTS_PATH/nfs.sh cleanup        # Add NFS services !!!
        $SCRIPTS_PATH/crond.sh cleanup
#       $SCRIPTS_PATH/mionet.sh cleanup
}

case "$1" in
        start)
                start
                ;;
        stop)
                stop
                ;;
        restart)
                restart
                ;;
        cleanup)
                cleanup
                ;;
        *)
                echo $"Usage: $0 {start|stop|restart}"
                exit 1
esac

exit $?

Now also read http://wiki.linux-nfs.org/wiki/index.php/NFS_Howto_Optimization to max out your nfs.

See this thread for more info: http://mybookworld.wikidot.com/forum/t-28307/nfs