Yocto Setup TFTP/NFS: Difference between revisions
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-->{{#ifeq: {{#var:SOC_SERIES}} | imx8 ||{{#vardefine:SHOW_CONFIG_FEC|0}}}}<!-- if SOC_SERIES != mx8, SHOW_CONFIG_FEC = 0 --> | -->{{#ifeq: {{#var:SOC_SERIES}} | imx8 ||{{#vardefine:SHOW_CONFIG_FEC|0}}}}<!-- if SOC_SERIES != mx8, SHOW_CONFIG_FEC = 0 --> | ||
= Running Yocto rootfs on Variscite board using TFTP & NFS = | = Running Yocto rootfs on Variscite board using TFTP & NFS = | ||
{{#ifexist: {{#var:ROOTFS_COMP_TARBALL_EXT}} || | |||
{{#ifeq: {{KERNEL_VERSION_NEWER|{{#var:KERNEL_VER}}|6.6.23}} | true | | |||
{{#vardefine:ROOTFS_COMP_TARBALL_EXT|rootfs.tar.zst}} <!-- Releases starting from Scarthgap (6.6.23) --> | |||
| | |||
{{#ifeq: {{KERNEL_VERSION_NEWER|{{#var:KERNEL_VER}}|6.1.22}} | true | | |||
{{#vardefine:ROOTFS_COMP_TARBALL_EXT|tar.zst}} <!-- Releases starting from Mickledore (6.1.22) --> | |||
| | |||
{{#vardefine:ROOTFS_COMP_TARBALL_EXT|tar.gz}} <!-- Older than the statements above --> | |||
}} | |||
}} | |||
}} | |||
== On the Host == | == On the Host == | ||
{{#vardefine:decompressionCommand| | {{#vardefine:decompressionCommand| | ||
{{#switch: {{#var:RECOVERY_SD_NAME_COMP}} | {{#switch: {{#var:RECOVERY_SD_NAME_COMP}} | ||
| zst=sudo zstd - | | zst=sudo tar --zstd -xvf ../{{#var:BUILD_FOLDER_DISTRO}}/{{#var:DEPLOY_DIR}}/images/{{#var:MACHINE_NAME}}/{{#var:DEFAULT_IMAGE_BB_NAME}}-{{#var:MACHINE_NAME}}.{{#var:ROOTFS_COMP_TARBALL_EXT}} | ||
| #default=sudo tar xvf ../{{#var:BUILD_FOLDER_DISTRO}}/{{#var: | | #default=sudo tar xvf ../{{#var:BUILD_FOLDER_DISTRO}}/{{#var:DEPLOY_DIR}}/images/{{#var:MACHINE_NAME}}/{{#var:DEFAULT_IMAGE_BB_NAME}}-{{#var:MACHINE_NAME}}.tar.{{#var:RECOVERY_SD_NAME_COMP|gz}} | ||
}} | }} | ||
}} | }} | ||
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<br> | <br> | ||
$ cd {{#var:BUILD_FOLDER}}/{{#var:BUILD_FOLDER_DISTRO}}/ | $ cd {{#var:BUILD_FOLDER}}/{{#var:BUILD_FOLDER_DISTRO}}/ | ||
$ sudo cp {{#var: | $ sudo cp {{#var:DEPLOY_DIR}}/images/{{#var:MACHINE_NAME}}/{{#var:KERNEL_IMAGE}} /tftpboot | ||
$ for f in {{#var: | $ for f in {{#var:DEPLOY_DIR}}/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 | ||
$ sudo rename 's/{{#var:KERNEL_IMAGE}}-//' /tftpboot/{{#var:KERNEL_IMAGE}}-*.dtb | $ sudo rename 's/{{#var:KERNEL_IMAGE}}-//' /tftpboot/{{#var:KERNEL_IMAGE}}-*.dtb | ||
}} | }} | ||
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== On the Target == | == On the Target == | ||
{{# | {{#switch: {{#var:HARDWARE_NAME}} | ||
|VAR-SOM-AM62 | |||
|VAR-SOM-AM62P= | |||
Update the U-Boot enviroment by adding the following lines to the uEnv.txt file on the SD card/eMMC boot partition: | Update the U-Boot enviroment by adding the following lines to the uEnv.txt file on the SD card/eMMC boot partition: | ||
<pre> | <pre> | ||
Latest revision as of 16:28, 24 April 2025
Warning: This page is designed to be used with a 'release' URL parameter.
This page is using the default release RELEASE_MORTY_V1.0_DART-6UL.
To view this page for a specific Variscite SoM and software release, please follow these steps:
- Visit variwiki.com
- Select your SoM
- Select the software release
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//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 nano /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:
# Ubuntu 24.04 and newer $ sudo apt-get install xinetd tftpd-hpa tftp-hpa # Ubuntu 22.04 and older $ sudo apt-get install xinetd tftpd tftp
Configure tftpd-hpa for Ubuntu 24.04 and newer:
$ sudo nano /etc/default/tftpd-hpa TFTP_USERNAME="tftp" TFTP_DIRECTORY="/tftpboot" TFTP_ADDRESS=":69" TFTP_OPTIONS="--secure"
Configure tftpd for Ubuntu 22.04 and older:
$ ls /usr/sbin/in.tftpd
$ sudo nano /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 systemctl restart xinetd $ sudo systemctl restart tftpd-hpa
$ cd ~/var-fslc-yocto/build_x11/ $ sudo cp /images/imx6ul-var-dart/zImage /tftpboot $ for f in /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
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.