Could you post the complete FTDI serial output of the board booting from
the SD card and using the Boot button?


Jon

On Thu, Oct 31, 2019 at 5:17 PM Michael B <[email protected]> wrote:

> It is rem'ed out on the SD card.  I can't get at any drive on the board
> itself since it won't boot.
> Using FTDI I can get to the board somewhat but don't know how to LS into
> it when it says I am not specifying a proper interface.
> All the googling about u-boot is either a generic Help dump that I can see
> in the terminal or talks about creating your own u-boot.
>
> Thanks for the help.
>
>
>
> On Thursday, October 31, 2019 at 7:54:11 PM UTC-4, jonnymo wrote:
>>
>> Have you ensured the 'cmdline=' entry at the bottom of the uEnv.txt file
>> is commented out? If not it will try to reflash the board.
>>
>> Jon
>>
>> On Thursday, October 31, 2019, Michael B <[email protected]> wrote:
>>
>>> As it stands now I can read the SD and the env file etc.
>>>
>>> The bbgw won't boot so it does not show the board as a drive on a
>>> computer.
>>>
>>> It just wants to keep flashing from the sd. Remove the sd and power up
>>> and it throws an error that the device to copy from doesn't exist.
>>>
>>> Using boot button does not seem to help.
>>>
>>> I'm afraid I'm back to trying to get at the board drive in u-boot.   I
>>> can't find any examples of how to specify the interface and device.
>>>
>>>
>>>
>>>
>>> On Thursday, October 31, 2019 at 6:52:39 PM UTC-4, jonnymo wrote:
>>>>
>>>> You could always get a Rasberry Pi to read the BB uSD.
>>>>
>>>>
>>>> On Thursday, October 31, 2019, Michael B <[email protected]> wrote:
>>>>
>>>>> I know about that. It doesn't work.
>>>>> Not mine for sure at least with this version of OSX and the latest
>>>>> VirtualBox.
>>>>>
>>>>> Thanks again all for help.
>>>>>
>>>>>
>>>>>
>>>>> On Thursday, October 31, 2019 at 5:35:20 PM UTC-4, jonnymo wrote:
>>>>>>
>>>>>> You just need to assign the USB device to the Virtual Box VM; the
>>>>>> native OS does not need to be able to read the filesystem. Also, you 
>>>>>> could
>>>>>> use ext4fuse on you Mac to mount a ext filesystem. Or just Bootcamp your
>>>>>> Mac with Linux.  However, all of this is why I no longer use Mac systems.
>>>>>>
>>>>>> On Thursday, October 31, 2019, Michael B <[email protected]>
>>>>>> wrote:
>>>>>>
>>>>>>> Thanks Dennie.
>>>>>>> I think that is getting me closer.  I can now mount the SD on my Mac.
>>>>>>> FYI to anyone reading this for similar help:  If the Mac doesn't see
>>>>>>> the ext4 partition a VirtualBox VM will not work as it doesn't connect 
>>>>>>> to
>>>>>>> the VM at all.
>>>>>>>
>>>>>>> I can now see and edit the uEnv.txt file.
>>>>>>> I'm not up and running yet but that gives me some more to play with.
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>> On Tuesday, October 29, 2019 at 12:00:32 PM UTC-4, Dennis Bieber
>>>>>>> wrote:
>>>>>>>>
>>>>>>>> On Tue, 29 Oct 2019 04:05:01 -0700 (PDT), in
>>>>>>>> gmane.comp.hardware.beagleboard.user Michael B
>>>>>>>> <mike-NEI+xi/[email protected]> wrote:
>>>>>>>>
>>>>>>>>
>>>>>>>> >- I cannot read or write to the SD card on my computer after
>>>>>>>> transferring
>>>>>>>> >the image to the SD card.  It's in a format the computer does not
>>>>>>>> like (osx
>>>>>>>> >catalina).  Therefore, I do not know how to turn off the flash
>>>>>>>> option in
>>>>>>>> >/boot/... to stop it from trying to reflash.
>>>>>>>>
>>>>>>>> https://www.maketecheasier.com/mount-access-ext4-partition-mac/
>>>>>>>>
>>>>>>>>         If you've written a NON-flasher image on the SD card, and
>>>>>>>> it still
>>>>>>>> tries to run the flasher, you've got a strange eMMC configuration.
>>>>>>>> Try
>>>>>>>> holding down the boot-select button to force the card to load
>>>>>>>> u-Boot from
>>>>>>>> SD card (I believe for some years now u-Boot on eMMC is configured
>>>>>>>> to
>>>>>>>> detect an SD card and then transfer to it to complete booting, but
>>>>>>>> that
>>>>>>>> implies it is not using the SD card u-Boot)
>>>>>>>>
>>>>>>>>         If the boot-select with a non-flasher image works, you
>>>>>>>> should be able
>>>>>>>> to mount the eMMC and explore it for incorrect configuration files.
>>>>>>>> Or zero
>>>>>>>> it out so it can't boot from eMMC (and maybe eventually reflash it
>>>>>>>> with a
>>>>>>>> known working image -- convert the working SD card to flasher).
>>>>>>>>
>>>>>>>> --
>>>>>>>> Dennis L Bieber
>>>>>>>>
>>>>>>>> --
>>>>>>> For more options, visit http://beagleboard.org/discuss
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