• Home
  • Help
  • Search
  • Login
  • Register
  Show Posts
Pages: [1]
1  Hardware and U-Boot firmware / U-Boot stuff / uboot 3.4.19 - need to change/add uboot parameters without serial console on: February 25, 2010, 03:51:29 PM
I need your help!

Bit of a dilemma, I need to change/add uboot parameters to a plug in the field without getting serial console access... From our partition setup, we dont have write access to the uImage folder when booted in to our OS. 

We can dual boot into a USB key, is there any kernel mods or methods to get access to the uImage partition, or chain further uboot parameters from USB without the need to alter what is already there, or serial console in?

# cat /proc/mtd
dev:    size   erasesize  name
mtd0: 00400000 00020000 "uImage"
mtd1: 1fb00000 00020000 "rootfs"


Above is the partition table - really stuck on this one, would greatly appreciate any help!!

John
2  Hardware and U-Boot firmware / Hardware / LED control on: November 27, 2009, 01:00:36 PM
I noticed Victors post on driving LED's  I am working with the sheevaplug that has 2 LED's and am interested in controlling them,  I have gentoo running on the plug, was wondering if anyone had done any work on this front and would care to share Smiley

John
3  Hardware and U-Boot firmware / Hardware / power over ethernet on: November 27, 2009, 12:53:22 PM
Hi,

anyone know if power over Ethernet is possible with the power consumption of the plug?  Any consideration on this front?

John
4  Hardware and U-Boot firmware / U-Boot stuff / Re: uboot boot order - USB,MMC/SD.NAND on: November 27, 2009, 12:48:15 PM
Thanks birdman, I will give this method a shot.
5  Hardware and U-Boot firmware / U-Boot stuff / uboot boot order - USB,MMC/SD.NAND on: November 26, 2009, 04:33:30 PM
Hi,

First time caller, long time listener - had seen this eluded to in http://plugcomputer.org/plugforum/index.php?topic=120.0 for u-boot new features.

Unless I am missing something, it does not seem like one can program the uboot scripts to perform a boot order (i.e try USB, then fallback to internal NAND)

If anyone has any info on this, I would love some pointers.  It seems crucial to have a means of replacing the rootfs on the nand without needing console.

Usecase - shipped to client with no console - filesystem updates (new tools, apps, etc) need way to replace the nand image with only a usb device.....

Thoughts?
Pages: [1]