First, install all the necessary packages:
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sudo apt-get install xinetd tftpd tftp -y |
Uncompress the rootfilesystem into a folder: (check the files name when you are creating the soft link, the uImage name may change, and change devel with your username)
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mkdir /home/devel/rootfs-target-folder
sudo tar -xvjf core-image-minimal.tar.gz -C /home/devel/rootfs-target-folder
cd /home/devel
ln -s rootfs-target-folder rootfs |
Next, create a configuration file:
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sudo nano /etc/xinetd.d/tftp |
Put the following content into the file (change devel with your username)
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service tftp
{
protocol = udp
port = 69
socket_type = dgram
wait = yes
user = nobody
server = /usr/sbin/in.tftpd
server_args = home/devel/rootfs/boot -s
disable = no
} |
and start the TFTP service:
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sudo service xinetd restart |
Set up the NFS
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Install the following packages:
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sudo apt-get install nfs-kernel-server portmap |
and edit the file
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sudo nano /etc/exports |
Write this into the file (change devel with your username)
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/home/devel/rootfs *(rw,sync,no_root_squash,no_subtree_check) |
and execute
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sudo exportfs -a |
Check the bootserver IP address
Start the module
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Stop the autoboot
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setenv nfsroot '/home/devel/rootfs'
setenv serverip '10.11.x.y' # IP address of the bootserver
setenv netargs 'setenv bootargs console=${console},${baudrate} root=/dev/nfs ip=dhcp nfsroot=${serverip}:${nfsroot},v3,tcp video=mxcfb0:dev=${vid_dev0}'
saveenv |
If you want to boot a different rootfs, you can create another folder to uncompress the rootfs there, remove the soft link /home/devel/rootfs and create a new one pointing to the folder you want