Re: Problems with phantom mmcblk0

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On 3/1/22 01:05, Samuel Sieb wrote:
On 2/28/22 20:51, Robert Moskowitz wrote:
I have been busy using Etcher to make arm boot images.

Now it is telling me that it cannot write to /dev/mmcblk0

What is telling you that?

Error message in Etcher.  I can't remember the exact text, I would have to try again to get that.


Etcher is not running.  I do not have an SD card in the system, yet /dev is listing mmcblk0

Is there someway I can remove this so perhaps things will start working again without a reboot?

What isn't working?

Etcher is not working to write an image to the SD card which is /dev/mmcblk0


Note inserting then removing the SD card from the SD slot does not change /dev showing mmcblk0.

Does the SD card show up when you insert it?
Can you read from the device when there's an SD card inserted?

Well, did not try that.  Put in another SD card that already has an image on it.  I can mount it and read it.  Unmount and take the device out of the SD slot, /dev/mmcblk0 still showing when I 'ls /dev' .

So I *THINK* I want to get the system to realize that there is NO /dev/mmcblk0 (normal situation) when the notebook's SD slot is empty.

Alternatively, I guess I should be able to use a USB/SD card adapter for now until the next reboot.
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