[Arm-dev] making a .img from a mSD card

[Robert Moskowitz]

On 12/29/2015 12:49 AM, Mandar Joshi wrote:
>> Can some one point me to where I can find how to do this?
>>
> If you are talking about the time it takes to write an image to a
> card, I think you should be looking at the block size option with dd.
> dd if=image.img of=/dev/sdb bs=1M

And how do I go the other way that only takes to the end of sdb3, not 
the whole card?

> I use 1M because it works flawlessly with my card writer. I had done a
> google search for it and found a recommendation of 4k. But 1M works
> for me, so I've stuck to 1M for now.
>
>
> Regards
> Mandar Joshi
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