Bootserver

Netboot have to be configured in uboot and relies on a remote TFTP/NFS server. The TFTP/NFS-Server provides the root filesystem with Kernel and DeviceTree and have to be configured accordingly.

On some DHCP servers (eg. common used Fritz-Box models) the serverip environment variable will be overwritten on dhcp command. To do a netboot on those networks, set "serverip" after the dhcp command again or use static IP address on module.

Example of manual netboot:

=> setenv nfsroot <PATH_TO_YOUR_ROOTFS_ON_NETBOOT_SERVER>
=> run findfdt
=> setenv ip_dyn no
=> setenv autoload no
=> dhcp
=> setenv serverip <PATH_TO_YOUR_NETBOOT_SERVER_IP>
=> run netboot

If netboot should be default boot, stop before “run netboot” command and do:

=> setenv bootcmd run netboot
=> savee
=> reset

Remark:

This will also save IP-Address and the used device tree to environment

i.MX 8 Documentation

Bootserver

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