Difference between revisions of "Didj Lightning Boot Options"

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(Hardware Needed)
(Load zImage from SD)
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==== Load zImage from SD ====
 
==== Load zImage from SD ====
This option will allow you to boot a kernel zImage file from your SD FAT partition. Then depending on how your kernel is configured,  it will load the Rootfs from where its been configured to find it, stock is NAND.
+
This option will allow you to boot a kernel zImage file from your SD card FAT partition. Then depending on how your kernel is configured,  it will load the Rootfs from where its been configured to find it, stock is NAND.
  
 
=== Version 1.6 ===
 
=== Version 1.6 ===

Revision as of 13:20, 12 July 2011

Summary

There are several version of Lightning Boot you can install on your Didj, This page gives a run down of each of the options, and how to use them.


Hardware Needed

Cartridge

Console Access


Software Needed

Lightning Boot

SD Card Configurations

  • Version 1.4
    • SD Formatted with FAT filesystem.
  • Versions 1.6+
    • First partition as FAT, large enough to hold a zImage, Lighnting Boot, U-Boot, etc.
    • Second partition as Ext3, large enough to hold a Rootfs, and anything else you'll want on there.

Boot Options

Version 1.4

Load from NAND normally

Choosing this option, boots the Didj as if it was in stock configuration.

The Didj has two sets of Kernels and Rootfs to boot from, which one is chooses to boot from can be set in the /flags/rootfs file. There are two options to choose from RFS0 and RFS1. You can manually update this file if you like, to switch between them.

Version 1.6+ This feature was modified, so that it will always use the kernel0, only the Rootfs will change.


Download via Xmodem @115200

ToDo


Load u-boot.bin from SD

This option will load u-boot.bin off the SD card FAT partition, and run it. Once booted you can access the U-Boot features from your console.


Load zImage from SD

This option will allow you to boot a kernel zImage file from your SD card FAT partition. Then depending on how your kernel is configured, it will load the Rootfs from where its been configured to find it, stock is NAND.

Version 1.6

Boot from NAND with SD Kernel and Rootfs

Boot from NAND with custom cmdline

This option allows you to boot the kernel located at kernel1, using a custom boot cmdline read in from a file on the FAT partition on the SD card, the file is called 'cmdline' and can contain a cmdline with max.255 chars.

Version 2.0

autoboot zimage from SD

Version 2.1

Set Default Boot Option

ToDo