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<pre>run mmc-boot; run nfs-boot; run onenand-boot
</pre>
That is to say the board will first check if a memory card is present to boot with it. If memory card is not present, the board will ''ping'' the server to boot over the network. If the server does not answer, the board will boot on the flash. <br>Take a look at ''mmc-boot'', ''nfs-boot'' and ''onenand-boot'' variables for more details. In addition, the factory settings of ''UBoot'' are given [http://labs.igep.es/index.php/The_bootloader_U-Boot #Annex: default u-boot environment here].
In order to save ''UBoot'' environment variables in the flash, do: