Yocto Setup TFTP/NFS: Difference between revisions

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  $ sudo chmod -R 777 /tftpboot
  $ sudo chmod -R 777 /tftpboot
  $ sudo /etc/init.d/xinetd restart
  $ sudo /etc/init.d/xinetd restart
$ cd {{#var:BUILD_FOLDER}}/{{#var:BUILD_FOLDER_DISTRO}}/
{{#ifeq: {{#var:SOC_SERIES}} | imx8 |
{{#ifeq: {{#var:SOC_SERIES}} | imx8 |
<br>
<br>
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|
|
<br>
<br>
$ cd {{#var:BUILD_FOLDER}}/{{#var:BUILD_FOLDER_DISTRO}}/
  $ sudo cp tmp/deploy/images/{{#var:MACHINE_NAME}}/{{#var:KERNEL_IMAGE}} /tftpboot
  $ sudo cp tmp/deploy/images/{{#var:MACHINE_NAME}}/{{#var:KERNEL_IMAGE}} /tftpboot
  $ for f in tmp/deploy/images/{{#var:MACHINE_NAME}}/*.dtb; do if <nowiki>[[ -L $f ]] && [[</nowiki> $f != *{{#var:MACHINE_NAME}}.dtb <nowiki>]]</nowiki>; then sudo cp $f /tftpboot; fi done
  $ for f in tmp/deploy/images/{{#var:MACHINE_NAME}}/*.dtb; do if <nowiki>[[ -L $f ]] && [[</nowiki> $f != *{{#var:MACHINE_NAME}}.dtb <nowiki>]]</nowiki>; then sudo cp $f /tftpboot; fi done
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Follow our kernel compilation guide {{Varlink|Yocto_Build_Linux|{{#var:RELEASE_LINK}}|Build kernel from source code}}<br>
Follow our kernel compilation guide {{Varlink|Yocto_Build_Linux|{{#var:RELEASE_LINK}}|Build kernel from source code}}<br>
Run "make menuconfig", go to "Device Drivers → Network device support → Ethernet driver support → Freescale devices → FEC ethernet controller" and press y.
Run "make menuconfig", go to "Device Drivers → Network device support → Ethernet driver support → Freescale devices → FEC ethernet controller" and press y.
Follow this same process to also change the following drivers to built-in:<br>
CONFIG_AT803X_PHY&#61;y<br>
CONFIG_ADIN_PHY&#61;y<br>
Compile the kernel and copy arch/arm64/boot/Image.gz to /tftpboot }}
Compile the kernel and copy arch/arm64/boot/Image.gz to /tftpboot }}
}}
}}
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Enable DNS:
Enable DNS:
  $ ln -fs {{#var:BUILD_FOLDER_ABSOLUTE_PATH}}/rootfs/proc/net/pnp {{#var:BUILD_FOLDER_ABSOLUTE_PATH}}/rootfs/etc/resolv.conf
  $ sudo ln -fs /proc/net/pnp {{#var:BUILD_FOLDER_ABSOLUTE_PATH}}/rootfs/etc/resolv.conf
 


== On the Target  ==
== On the Target  ==
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Run the following in the U-Boot command line:
Run the following in the U-Boot command line:
  {{#ifeq: {{#var:HARDWARE_NAME}} | VAR-SOM-MX7 | => setenv image zImage}}
  {{#ifeq: {{#var:HARDWARE_NAME}} | VAR-SOM-MX7 | => setenv image zImage}}
  => setenv serverip <HOST_IP_ADDRESS>  (replace <HOST_IP_ADDRESS> with the actual IP address of your host)
  => setenv serverip <HOST_IP_ADDRESS>  (replace <HOST_IP_ADDRESS> with the actual IP address of your host - run 'ifconfig' on the host to get it)
  => setenv nfsroot {{#var:BUILD_FOLDER_ABSOLUTE_PATH}}/rootfs  (replace <uname> with the actual username)
  => setenv nfsroot {{#var:BUILD_FOLDER_ABSOLUTE_PATH}}/rootfs  (replace <uname> with the actual username)
  => setenv bootcmd run netboot
  => setenv bootcmd run netboot

Revision as of 21:19, 10 August 2022

DART-6UL - Yocto Setup TFTP/NFS

Running Yocto rootfs on Variscite board using TFTP & NFS

On the Host

Prepare the rootfs folder:

$ cd ~/var-fslc-yocto
$ sudo mkdir rootfs
$ cd rootfs
$ sudo tar xvf  ../build_x11/tmp/deploy/images/imx6ul-var-dart/fsl-image-gui-imx6ul-var-dart.tar.gz

Make sure the NFS server is installed:

$ sudo apt-get install nfs-kernel-server


Edit /etc/exports. E.g.

$ sudo gedit /etc/exports

...and add the following line to it (replace <uname> with the actual username):

/home/<uname>/var-fslc-yocto/rootfs    *(rw,sync,no_root_squash,no_all_squash,no_subtree_check) 


Restart the NFS server:

$ sudo /etc/init.d/nfs-kernel-server restart

Make sure the TFTP server is installed:

$ sudo apt-get install xinetd tftpd tftp

Verify the following:

$ ls /usr/sbin/in.tftpd
$ sudo gedit /etc/xinetd.d/tftp
service tftp
{
	protocol = udp
	port = 69
	socket_type = dgram
	wait = yes
	user = nobody
	server = /usr/sbin/in.tftpd
	server_args = /tftpboot
	disable = no
}

and run:

$ sudo mkdir /tftpboot
$ sudo chmod -R 777 /tftpboot
$ sudo /etc/init.d/xinetd restart


$ cd ~/var-fslc-yocto/build_x11/
$ sudo cp tmp/deploy/images/imx6ul-var-dart/zImage /tftpboot
$ for f in tmp/deploy/images/imx6ul-var-dart/*.dtb; do if [[ -L $f ]] && [[ $f != *imx6ul-var-dart.dtb ]]; then sudo cp $f /tftpboot; fi done
$ sudo rename 's/zImage-//' /tftpboot/zImage-*.dtb



Make adjustments to the rootfs:

When using NetworkManager on the target, configure NetworkManager not to manage the interface used for the NFS boot by adding the following to /home/<uname>/var-fslc-yocto/rootfs/etc/NetworkManager/NetworkManager.conf:

[keyfile]
unmanaged-devices=interface-name:eth0

Enable DNS:

$ sudo ln -fs /proc/net/pnp /home/<uname>/var-fslc-yocto/rootfs/etc/resolv.conf

On the Target

Make sure you have a serial connection to the target.

Boot the board and hit any key to stop the autoboot and get to the U-Boot command line. Run the following in the U-Boot command line:

=> setenv serverip <HOST_IP_ADDRESS>  (replace <HOST_IP_ADDRESS> with the actual IP address of your host - run 'ifconfig' on the host to get it)
=> setenv nfsroot /home/<uname>/var-fslc-yocto/rootfs  (replace <uname> with the actual username)
=> setenv bootcmd run netboot
=> saveenv

You are all set. Connect the target board to the same network as the host using an Ethernet cable, power cycle it and it should boot over NFS.