Save Data to MicroSD Card
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How do you save data to a mount MicroSD Card?
Do you need to create file on it or just add the path to you code such as
/tmp/run/mountd/mmcblk01 ?Tried the tutorial in Camera Time-Lapse, but no success. Firmware is up to date.
Any suggestions? Thanks in advance.
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You just need to mount it (if hasn't been for some reason).
You can even run manually
syncafter creating/editing file(s) but usually that's done automatically and so all the data is saved properly.
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I've noticed that after installing the MicroSD card and running df -h tha card will show up in the list, but will later disappear from it when it's re-run.
Do you know if that is expected behavior once it is automatically mounted?
Thanks for the feedback.
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Reset card to factory settings and updated through opkg update. Running df -h does not show the drive.
Just want to make sure that the drive is mounted automatically before attempting any manual steps. Navigated to /dev and found this:
Using this thread as a guide. Are any of the mtdblock for the SD card?
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Switched out "old" MicroSD card with a new one from SanDisk, then powered up Omega2+. First, the new card was listed in df -h
Next, ran ll and ls a few times. Then, re-ran df -h
It is not listed so navigated to /tmp/mounts
The card is mounted as SD-P1, and no manually steps were necessary.
Just need to setup the shortcut as listed in [Time-Lapse Camera].(https://docs.onion.io/omega2-project-book-vol1/timelapse-camera.html)
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Do you know if that is expected behavior once it is automatically mounted?
I'm not sure - I myself rely on mounting manually (that is: using
mountcommand or by adding card tofstabto be sure).
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It appears that the card is listed every time it is used, then after a while it is 'shut down' and not included in df -h. Here is snippet from the logread
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I see it's mounted nearly properly (Linux recommends you to run
fsck), but it shouldn't make it auto-unmount. Do you have logs when this unmounting happens?
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It it working though, not sure what is causing it because the files are accessible.
Here is the logfile:
The card is 16GB and is holding data.
It looks like the system unmounts the card after a period of inactivity.
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You posted again log when the card is mounted - I was hoping you happen to have logs when the card is being unmounted, that could show us a possible reason.
Everything above (on the screenshots) looks ok to me.
