Network File System configuration
Contents
Introduction
On this page, you will find usefull informations to configure your Host or Target network
NFS server on your devt Host
Installation
- On Fedora NFS is part of your distribution so you normally don't need to install it.
- On Ubuntu/Kubuntu:
apt-get install nfs-user-server
or if you prefer;
apt-get install nfs-kernel-server
Configuration
You have to configure the directory where you will store the files you want to share accross the network. For that you have to modify the /etc/exports file (for example):
# Directory for Armadeus: /local/export 192.168.0.0/255.255.0.0(ro,no_root_squash,sync)
(In that case your Host will authorize all client from the subnet 192.168.*.* to access /local/export in read only mode)
Then restart your NFS server:
- On Fedora:
# /sbin/service nfs restart
Next time you boot, you can check your NFS server status with:
# /sbin/service nfs status
and if not started then:
# /sbin/service nfs start
- On Ubuntu/Kubuntu:
/etc/init.d/nfs-user-server restart
or
/etc/init.d/nfs-kernel-server restart
Next time you boot, you can check your NFS server status with: System Settings->System services
- On OpenSUSE
/etc/init.d/nfsserver restart
On your Armadeus target:
Mount the NFS partition manually
- create a mount point (for example):
# mkdir -p /mnt/host
- mount it (for example):
# mount -t nfs 192.168.0.2:/local/export /mnt/host
192.168.0.2 is your Host IP address and /local/export the name of your Host directory you want to mount.
How to mount the NFS partition automatically at each boot
- be sure to have the latest available software (>=armadeus2.0 or latest SVN)
- login to your Armadeus board as root
- open file /etc/fstab and add this line:
<host-ip>:/<path-to-shared-folder> /mnt/<path-to-mount-folder> nfs hard,intr,rsize=8192,wsize=8192 0 0
example:
192.168.0.2:/local/export /mnt/host nfs hard,intr,rsize=8192,wsize=8192 0 0
- check your modification:
mount /mnt/host
- reboot your board
reboot
- and enjoy the result
# df # ls /mnt/host
When you have a problem: verify that the NFS server is running on the host:
$ /sbin/service nfs status
Troubleshooting:
1] If nfsd and mountd daemon are not running on your Host, then you will get a message like:
# mount: RPC: Program not registered
In that case, restart the NFS service on your Host (see above) 2] To successfully mount a NFS drive, portmap daemon should be running on your target, if not system will hang during some minutes when you launch the mount !! To check if portmap is running, look at the running processes:
# ps faux
If portmap is not listed, then launch it manually:
# /etc/init.d/S14portmap
Required Packages:
- portmap (buildroot)
- nfs (busybox)
- nfs support (linux)
TFTP Server under Windows:
For those who want to transfer some files from Windows (kernel image / root fs), a small and FREE tftp server is available here: http://tftpd32.jounin.net/
To copy a file (test.png) from the host (192.168.0.3) to the target use this command: tftp -g -r test.png 192.168.0.3
NFS Server under Windows:
For those who want to use the NFS service on Windows, a small and FREE NFS server is available here: http://www.freedownloadscenter.com/Utilities/Misc__Utilities/nfsAxe.html
