[Macchiato] SD problems

Marcin Wojtas mw at semihalf.com
Fri Jun 16 09:28:28 BST 2017


Steve,

2017-06-15 18:07 GMT+02:00 Steve McIntyre <steve at einval.com>:
> On Thu, Jun 15, 2017 at 02:35:31AM +0200, Marcin Wojtas wrote:
>>2017-06-15 1:50 GMT+02:00 Steve McIntyre <steve at einval.com>:
>>>
>>> On Wed, Jun 14, 2017 at 08:09:49PM +0200, Marcin Wojtas wrote:
>>> >Hi Steve,
>>> >
>>> >I tried two different SD cards, both worked, so maybe I was lucky. Anyway, are
>>> >you sure, you have MBR partition table + the first (boot) partition starts at
>>> >4096?
>>>
>>> Ummm. Sure about 4096? I've been using dd to write images, offset by
>>> just one 512-byte sector.
>>
>>Yes, I'm sure of that. From what I know, the bootrom recognizes
>>partition table, and expect first one (with the image burnt) to be
>>@4096. Anyway, I'm happy it's working now.
>
> OK, fair enough. I was just following the instructions at
>
>   https://wiki.solid-run.com/doku.php?id=products:a8040:software:development:u-boot_atf
>
> and using
>
>   dd if=flash-image.bin of=/dev/sdX bs=512 seek=1
>
> If there's meant to be a partition table in sector 0 that points to a
> partition at offset 4096, this is the first I've heard of it - thanks
> for clarifying!
>

I got to know about 4096 first partition's offset at:
http://wiki.macchiatobin.net/tiki-index.php
Actually until Wednesday I wasn't aware, that SolidRun maintained
their own wiki.

Best regards,
Marcin



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