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Author Topic: How to restore a Guruplug using Usb  (Read 17542 times)

NewITMalcolm

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How to restore a Guruplug using Usb
« on: 17 March 2011, 04:26:26 pm »

How to Restore a Guruplug using Usb.

This guide does assume that uboot is working on the plug. If the plug is bricked then OpenOcd is probably the place to start.
You will need to download the linked files onto a usb stick for this.
The versions are slightly newer than on the Standard Guruplug but these seem to be the official version if you follow the Download link from the Globalscales site.

If you are using a Guru Standard you will need to use usb 0:1 instead of usb 1:1 for the plus.
uboot variables will not be updated but you can find the Factory defaults listed here.
http://www.newit.co.uk/forum/index.php/topic,400.0.html

uboot
====
Replacement  uboot - http://www.plugcomputer.org/405/us/guru-plug/uboot/uboot.guruplug.bin
U-Boot 2010.03-01161-gd91b0a9 (Apr 22 2010 - 03:24:41)

Code: [Select]
usb start
 fatload usb 1:1 0x6400000 /uboot.guruplug.bin
 nand erase 0x0 0x0a0000
 nand write 0x6400000 0x0 0xa0000
 saveenv
 reset

kernel
====
Replacement  Kernel - http://www.plugcomputer.org/405/us/guru-plug/kernel/uImage-guruplug
2.6.33.2-00003-g4b82fc0 #1 PREEMPT Thu Apr 22 03:29:35 PDT 2010 armv5tel GNU/Linux

Code: [Select]
usb start
 fatload usb 1:1 0x6400000 /uimage-guruplug
 nand erase 0x100000 0x400000
 nand write.e 0x6400000 0x100000 0x400000

RootFS
=====
Replacement RootFs - http://www.plugcomputer.org/405/us/guru-plug/rfs/rootfs.ubi.img

Code: [Select]
fatload usb 1:1 0x6400000 /rootfs.ubi.img
 nand erase 0x500000 0x1fb00000
 nand write.e 0x6400000 0x500000 0xb940000
« Last Edit: 06 February 2012, 01:45:21 pm by NewIT_James »
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NewITJames

nickrmc

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Re: How to restore a Guruplug using Usb
« Reply #1 on: 05 February 2012, 03:23:40 pm »

It appears the above links are dead.

Can you point me to some live ones?

Thanks
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NewITMalcolm

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Re: How to restore a Guruplug using Usb
« Reply #2 on: 06 February 2012, 01:46:06 pm »

Quote
It appears the above links are dead.

Can you point me to some live ones?

Links updated.

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NewITJames

jbemmel

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Re: How to restore a Guruplug using Usb
« Reply #3 on: 27 April 2012, 05:23:01 pm »

I managed to restore my Guru Plug using the above instructions. At first it seemed that the kernel was not working, it kept rebooting. Turned out that the plug was too hot; leaving it to cool down for a few minutes and then plugging it back in did the trick.

BTW, looks like you´ve sold us a useless device. What good is a plug computer if you can´t keep it plugged in because of overheating?
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Confusticated

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Re: How to restore a Guruplug using Usb
« Reply #4 on: 27 April 2012, 08:23:41 pm »

Quote
What good is a plug computer ...
What good is a forum ...
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Advocatus Diaboli - My agenda is not to give you the answer, but to guide your thoughts so you derive it for yourself!
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