Booting with custom Linux kernel or ramdisk

If it’s necessary, it is possible to boot custom a Linux kernel with existing OSTree controlled file system.

Provisioning over tftp

  1. Load the ostree necessary variables.

run bootcmd_otenv

  1. Load your own kernel.

tftp $kernel_addr_r fitImage

xor load the installed kernel:

ext4load mmc 1:1 $kernel_addr_r /boot$kernel_image

  1. Load your own ramdisk.

tftp $ramdisk_addr_r ramdisk

xor load the installed ramdisk:

`ext4load mmc 1:1 \$ramdisk_addr_r /boot\$ramdisk_image;

  1. Boot the system.

bootm $kernel_addr_r $ramdisk_addr_r

Provisioning over USB

  1. Initialize USB

usb reset

  1. Load the ostree necessary variables.

run bootcmd_otenv

  1. Load your own kernel.

fatload usb 0:1 $kernel_addr_r fitImage

xor load the installed kernel:

ext4load mmc 1:1 $kernel_addr_r /boot$kernel_image

  1. Load your own ramdisk.

fatload usb 0:1 $ramdisk_addr_r ramdisk

xor load the installed ramdisk:

ext4load mmc 1:1 $ramdisk_addr_r /boot$ramdisk_image;

  1. Boot the system.

bootm $kernel_addr_r $ramdisk_addr_r