Can I *prevent* BBB from booting from microSD?

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1

I have a rev A6 (I think) BBB with the 2Gb eMMC memory. I installed a
microSd card with Ubuntu on it and it has been booting from that quite
happily for the past few months.

I now seem to have currupted the Ubuntu image on the microSD card such
that it no longer boots successfully. If I remove the microSD then
the BBB boots OK from the eMMC into Angstrom.

Is there any way I can force the BBB to boot from eMMC even though
there's a microSD card plugged in? I want to recover some files from
the microSD card and I'm away from home and don't have any other means
of reading the microSD.

I do also have a revC BBB here but I guess that isn't going to act any
differently from the older one.

2

I have a rev A6 (I think) BBB with the 2Gb eMMC memory. I installed a
microSd card with Ubuntu on it and it has been booting from that quite
happily for the past few months.

I now seem to have currupted the Ubuntu image on the microSD card such
that it no longer boots successfully. If I remove the microSD then
the BBB boots OK from the eMMC into Angstrom.

Is there any way I can force the BBB to boot from eMMC even though
there's a microSD card plugged in? I want to recover some files from
the microSD card and I'm away from home and don't have any other means
of reading the microSD.

I do also have a revC BBB here but I guess that isn't going to act any
differently from the older one.

Boot up Angstrom and then insert your SDCard. Use dmesg to confirm the
card was recognized and then mount the SDCard.

Regards,
John

3

So it's safe to insert the SD card into a powered up system is it?

4

It is.

Gerald

5

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It is.

Excellent, good to know. I did try and search for this information
but obviously my Google Fu wasn't up to it.