One of the most basic, and therefore most widely used to perform low-level single file transfers, is the Trivial FTP or Trivial File Transfer Protocol ( TFTP). Then start the TFTP server by pressing the first button on the leftĬlick on the button in the the top left corner.There is a wide variety of File Transfer Protocols ( FTP) in use on the internet today. Once the program has been installed, and you've started it, press the settings button and change the path, specifying the location where you have unpacked the base images zip file you downloaded earlier Setup a TFTP Serverįor U-Boot to download the 3 files from your computer to the Yún, you first need to setup a TFTP server on your computer. Extract the three files (uboot, kernel, rootfs).
Warning: Following this guide will VOID the WARRANTY of your Yún Download and Unpack the Image Filesĭownload the base images zip file. If you are in doubt about any of these steps, DO NOT follow this guide and contact us here. You should read and understand this document before trying anything mentioned below. This should be considered an advanced topic, pay heed to the warnings throughout. It's a bit like formatting a computer's hard drive. To reflash the Yún from the U-Boot prompt, you will download 3 different image files and write their contents on the flash memory of the Yún, erasing all previously stored information. With U-Boot you can restore a Yún to its factory settings. U-Boot is a very small program executed right after you power on a Yún. This procedure uses U-Boot, something similar to the BIOS on a PC. Changing the default configuration and installing packages that take up too much space may cause the installation to become unstable.
Typically, this is because there is something wrong with the existing Linux installation. There are situations in which the recommended upgrade procedure does not or cannot work.
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