Phytec i.MX 93 - Booting the Kernel from a Network

i.MX 93 BSP Manual PD24.1.1 Documentation Rev.: imx8mp-pd22.1.2-51-ga548be7d
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}
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Warning
Be careful when creating subnets as this may interfere with the company network policy. To be on the
safe side, use a dierent network and specify that via the interfaces conguration option.
• Now the DHCP-Server has to read the /etc/kea/kea-dhcp4.conf le again:
host:~$ sudo systemctl restart kea-dhcp4-server
When you boot/restart your host PC and don’t have the network interface, as specied in the kea-dhcp4
cong, already active the kea-dhcp4-server will fail to start. Make sure to start/restart the systemd service
when you connect the interface.
5.2 Booting the Kernel from a Network
Booting from a network means loading the kernel and device tree over TFTP and the root le system over
NFS. The bootloader itself must already be loaded from another available boot device.
5.2.1 Place Images on Host for Netboot
• Copy the kernel image to your tftp directory:
host:~$ cp Image /srv/tftp
• Copy the devicetree to your tftp directory:
host:~$ cp oftree /srv/tftp
• Copy all the overlays you want to use into your tftp directory:
host:~$ cp *.dtbo /srv/tftp
• Make sure other users have read access to all the les in the tftp directory, otherwise they are not
accessible from the target:
host:~$ sudo chmod -R o+r /srv/tftp
• Extract the rootfs to your nfs directory:
host:~$ sudo tar -xvzf phytec-qt6demo-image-phyboard-segin-imx93-2.tar.gz -C /srv/nfs
Note
Make sure you extract with sudo to preserve the correct ownership.
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