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If the version found to be "U-Boot 2015.10-rc2", then type "reset" u-boot command. Then skip this section and move on to Flashing next section

If version is other than U-Boot 2015.10-rc2, follow below steps (derived from https://wiki.debian.org/InstallingDebianOn/TurrisOmnia#Bootloader_update)

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• Install a tftp server (eg. tftpd-hpa) on your computer and place the attached uboot-turris-omnia-spl.kwb file into your computer's tftp directory(eg. /srv/tftp/).

• View file
  name uboot-turris-omnia-spl.kwb height 250

• In PC, keep/configure your Ethernet interface in "Shared to other computers" mode. Tap the interface to bring the change into effect
• Connect an Ethernet cable from your PC(where uboot-turris-omnia-spl.kwb file is hosted on tftp server) to WAN port of Turris Omnia
• Then, run the following commands at the u-boot prompt on Turris Omnia

  
  

  Code Block
  dhcp tftpboot 0x1000000 uboot-turris-omnia-spl.kwb sf probe sf update 0x1000000 0 $filesize

  
  

Setting default U-boot environment

In serial console, press "Enter" key to get into u-boot prompt

Run following u-boot command to set default U-boot environment

env default -a
saveenv

Flashing

The Omnia ships with TurrisOS preinstalled. This is an OpenWrt fork with the older Linux 4.4 kernel. It uses btrfs to manage the eMMC flash.

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