What is the difference between flasher and microSD images?

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eb

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Apr 15, 2021, 12:23:16 AM4/15/21
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I'm having trouble finding information on the difference between the flasher and microSD images. Why can an image made for microSD not be flashed to eMMC?

The reason I'm asking is because the Debian 9.12 ImgTec image is only available as "microSD", but I want to run this version from eMMC for performance and reliability reasons. I also want to mount a microSD as a different mount point for writing files. If I flash this image to eMMC, will I run into issues? If yes, is there a way to "modify" the microSD version to work with eMMC?

Thanks in advance.

Dennis Lee Bieber

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Apr 16, 2021, 1:42:46 PM4/16/21
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On Wed, 14 Apr 2021 21:23:16 -0700 (PDT), in
gmane.comp.hardware.beagleboard.user eb
<emailephi-Re5JQE...@public.gmane.org> wrote:


>I'm having trouble finding information on the difference between the
>flasher and microSD images. Why can an image made for microSD not be
>flashed to eMMC?
>
The difference is one line at the bottom of /boot/uEnv.txt

If you uncomment the line, the card becomes a flasher image (and if you
don't remove it after the flashing, rebooting will repeat flashing...).


--
Dennis L Bieber

Robert Nelson

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Apr 16, 2021, 2:13:39 PM4/16/21
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On Wed, Apr 14, 2021 at 11:23 PM eb <emai...@gmail.com> wrote:
>
> I'm having trouble finding information on the difference between the flasher and microSD images. Why can an image made for microSD not be flashed to eMMC?
>
> The reason I'm asking is because the Debian 9.12 ImgTec image is only available as "microSD", but I want to run this version from eMMC for performance and reliability reasons. I also want to mount a microSD as a different mount point for writing files. If I flash this image to eMMC, will I run into issues? If yes, is there a way to "modify" the microSD version to work with eMMC?

There should not be any 'big' issues, i assumed most customer projects
with 'qt' etc might run out of space on the eMMC..

Regards,

--
Robert Nelson
https://rcn-ee.com/

eb

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Apr 16, 2021, 4:07:04 PM4/16/21
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Thank you for the clarification. I successfully flashed to the eMMC, mounted a FAT32 SD card, and everything works great.
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