= Introduction =
This guide shows how to use OpenELEC with a /storage mounted via nfs.
Useful for diskless installations on e.g. sd-cards (e.g. Raspberry Pi) in combination with a NAS.

= Raspberry Pi =

First we need to install OpenELEC to our sd-card.
Since we are only storing the kernel and system image there a card with about 200MB is fully sufficient.

== Installing OpenELEC ==

Basically just follow this guide:
http://wiki.openelec.tv/index.php/Installing_OpenELEC_on_Raspberry_Pi

== Configuring NFS ==

Fist we need to install the NFS Server if you're using Debian this is done by:

 aptitude install nfs-kernel-server

After that create a directory in which you want to locate your storage (userdata) files.
e.g.

 mkdir /mnt/media/storage

Then add the following line to your /etc/exports:

 /mnt/media/storage      192.168.0.2/255.255.255.0(no_root_squash,rw,async,no_subtree_check)

Where 192.168.0.2 is the IP of your OpenELEC device.
That's it for your exports.

== Editing cmdline.txt ==

Next we need to make some changes to our cmdline.txt on the sd-card.

Change

 disk=/dev/mmcblk0p2

to

 disk=NFS=192.168.0.123:/mnt/media/storage

Where here 192.168.0.123 is the IP of your NFS / NAS server.
Thats it!

== Optional: use WakeOnLan to power up your NAS before OpenELEC boots ==

Some of you might have their NAS / server not always running. If your device is WOL capable you can have it remotely powered up by OpenELEC so that you don't have to turn it on manually.

To use this feature we have to make some further changes to our cmdline.txt
Add the following after the mountpoint we added above:

 wol_mac=12:12:ab:ac:21:12 wol_ip=192.168.0.123 wol_wait=60

- wol_mac is the mac address of the device which should be powered up remotely
- wol_ip is the ip address of the device which should be powered up remotely and is used to determine whether the device is already running or if it is not and must be waken
- wol_wait here you set a delay how long we have to wait until your NAS / server has finished booting and is fully available, so that OpenELEC can continue booting

You have to set all these three options!