NFS server

• Ubuntu 10.04 x86 in VMware Player
• Ubuntu 12.04 x86 in VMware Player
• Ubuntu 14.04 x86_64 in VMware Player
• Ubuntu 16.04 x86_64 in VMware Player

user@ubuntu:~$ sudo apt-get install nfs-kernel-server

Create a directory on the host root filesystem.

user@ubuntu:~$ sudo mkdir /nfs
user@ubuntu:~$ sudo chmod 777 /nfs

Extract the content of root.tgz to your nfs directory.
root.tgz is located in:

• BSP download archive provided by TQ-Systems e.g. (TQMxx.BSP.SW.BIN.xxxx.tgz\TQMxx.BSP.SW.BIN.xxxx.tar\root.tgz)
• After building the BSP sources with PTXdist e.g. (../TQMxx-BSP-REV.xxxx/platform-MBxx/images/root.tgz)

user@ubuntu:~$ cd /nfs
user@ubuntu:~$ sudo tar -xvf ~/workspace/TQMaxx-BSP-REV.xxxx/platform-MBaxx/images/root.tgz

Next step is to configure the /etc/exports file. Create an entry that contains the path to your nfs folder created above.

<path/to/your/nfs/directory>       <permitted IPs>/<subnet>(<comma separated options>)

For example

/nfs             192.168.0.0/255.255.0.0(rw,no_root_squash,async,no_subtree_check)

user@ubuntu:~$ sudo service nfs-kernel-server restart

With the command showmount you can see the exported directories.

user@ubuntu:~$ showmount -e localhost
Export list for localhost:
/nfs 192.168.0.0/255.255.0.0

• How to setup a TFTP Server on your Host Computer
• Using NFS boot

If the root file system cannot be mounted via NFS the log file of the NFS server should be checked. In Ubuntu the log is written to the file /var/log/syslog.

An example of such a log entry looks like:

Nov 14 02:30:57 ubuntu mountd[8667]: refused mount request from 172.21.10.157 for /opt/ltib_iMX35/ltib/rootfs (/opt/ltib_iMX35/ltib/rootfs): unmatched host

In this case the server rejects the connection because the host does not match the one in the file /etc/exports.

• https://help.ubuntu.com/community/SettingUpNFSHowTo
• http://www.denx.de/wiki/view/DULG/SystemSetup#Section_4.8.
• http://www.centos.org/docs/5/html/Deployment_Guide-en-US/ch-nfs.h