You change them in the uboot shell. The fw_ commands are in the OS, not uboot. They are probably reading and writing to the wrong memory addresses thus they don't work..
To save your uboot session it is like saveenv then it will say wrote 20k or error out..
----- Reply message -----
From: "Robert Moskowitz" <rgm@htt-consult.com>
To: "Derek Atkins" <derek@ihtfp.com>
Cc: <arm@lists.fedoraproject.org>
Subject: [fedora-arm] Bad image/instructions? - Re: Problems with a pogoplug v02
Date: Thu, Apr 18, 2013 4:54 pm
On 04/18/2013 04:33 PM, Robert Moskowitz wrote:
>
> On 04/18/2013 04:26 PM, Derek Atkins wrote:
>> On Thu, April 18, 2013 4:19 pm, Robert Moskowitz wrote:
>>>
>>> # NOTE: substitute "usb 1:1" with "usb 0:1" on non-Plus model devices,
>>> or try:
>>> usb start
>>> ext2ls usb x:1
>>> #where x can be any integer but usually 0-3, the right number will show
>>> a directory listing including the files uInitrd and uImage
>>>
>>> Well no usb or ext2ls commands. I searched all over the image. I ran
>>> updatedb, the tried locate. Nothing. Now what?
>> usb and ext2ls commands are "uboot" commands when you're sitting in the
>> uboot shell. Also, you might need a "newer" version of uboot to get ext
>> support.
>
> Hi, Derek, long time no see :)
>
> Fancy meeting you here.
>
> I read the instructions again, and see I missed an important part:
>
> "Depending on the model/version of the plug/uboot, additional uboot
> parameters may be necessary or the existing ones could be edited. To
> do that, stop the boot process during the countdown and follow the
> instructions here. The Fedora 18 Kirkwood images contain an ext3
> filesystem that cannot be booted directly by certain plugs (such as
> the GuruPlug) at this time. Please follow the appropriate installation
> instructions for your device."
>
> So fortunately I am still getting that netconsole to interupt the boot
> process and issue these commands...
>
> I am going back to that 8Gb usb drive first. If it works, it gives me
> more room to put software on the system.
Well the 8Gb works. It took 2 boots again. Probably something that has
to be done to the usb drive that requires reboot? Anyway, now on to
changing the boot options per:
fedoraproject.org/wiki/Architectures/ARM/F18/GuruPlug
Thing is should I keep it to booting from the /boot partition or from
NAND? I can see one arguement to keep it as it is, and that is if we
get updated kernels over the next two years?
Also I got a netconsole working by following:
http://forum.doozan.com/read.php?3,14,14
Now there is a warning NOT to use the fw_setenv that comes in Fedora, as
that would brick the pogo. I am assuming that unless I change these
options I will always have this netconsole? That the boot instructions
to boot off the usb will not change that? If so how might I change what
addresses used for the netconsole now?
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