- Overview
- i.MX28EVK Setup
- Build Yocto Project image
- Create a SDCARD from the Linux Host
- Boot i.MX28EVK
- Create file system on USB
- Create Mount Point and Mount the USB device
- Create 250 MB File
- Create Exports File
- Restart NFS Server
- Ubuntu Linux Host Setup
- Create Mount Directory
- Mount i.MX28EVK Exported Directory
- Access the NFS mounted directory
Overview
This document describes the steps for configuring a NFS Server running on an i.MX Application Processor - in this case the evaluation board i.MX28 EVK. Once the NFS server is running, an Ubuntu 12.04 Linux host is then configured to NFS mount the i.MX28EVK exported directory. The Ethernet interface is used for the connection transport.
A block diagram of the connection setup is shown below: An Ethernet switch provided the Ethernet connection between the Linux Host and the i.MX28EVK. A thumb drive was connected to the USB port on the i.MX28EVK which was used for the exported directory.
i.MX28EVK Setup
Build Yocto Project image
Use core-image-minimal and add packages to conf/local.conf to support NFS
MACHINE=imx28evk source setup-environment mx28-evk
echo "CORE_IMAGE_EXTRA_INSTALL += \"bash kernel-modules nfs-utils\" " >> conf/local.conf
bitbake core-image-minimal
When bitbake finishes the images are found in tmp/deploy/images/imx28evk
Create a SDCARD from the Linux Host
sudo dd if=/tmp/deploy/images/imx28evk/core-image-minimal-imx28evk.sdcard of=/dev/sdc bs=4M && sync
Boot i.MX28EVK
Insert the SDCARD into slot 0 on the bottom side of the i.MX28EVK and connect the serial console. Power-on and push the POWER button on the lower conner to turn on. The Login credentials are User Name: root There is no password configured by default.
Create file system on USB
The USB drive had one partition which was formatted with vfat file system:
mkfs.vfat /dev/sdb1
Create Mount Point and Mount the USB device
mkdir /mnt/usb
mount /dev/sdb1 /mnt/usb
Create 250 MB File
dd if=/dev/zero of=/mnt/usb/file1.txt bs=512K count=500
Create Exports File
echo "/mnt/usb *(rw,sync,no_root_squash,no_subtree_check)" > /etc/exports
Restart NFS Server
/etc/init.d/nfsserver stop
/etc/init.d/nfsserver start
Ubuntu Linux Host Setup
Create Mount Directory
sudo mkdir /mnt/remote
Mount i.MX28EVK Exported Directory
sudo mount -t nfs 10.85.1.10:/mnt/usb /mnt/remote
Access the NFS mounted directory
ls /mnt/remote
