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serial pi error

Posted: Wed Oct 09, 2019 8:31 pm
by henrique_mg
when boots the serial error message PI

Re: serial pi error

Posted: Thu Oct 10, 2019 7:58 am
by Realizator
Could you please give me more details on this message? Like message text or a screenshot.
Actually we use serial port communications only in a special projects (like FPV system for the drones), but neither S.L.P., nor OpenCV image contain any code related to serial communications.
You may face such a messages if you use some very special images from us (like for ChiefPilot FPV solution, or for Cosmostreamer project for DJI-related drones and cameras), but, as I said, these images are absolutely differ from SLP and OpenCV images.

Re: serial pi error

Posted: Thu Oct 10, 2019 5:01 pm
by henrique_mg
Raspberry PI serial number

Re: serial pi error

Posted: Thu Oct 10, 2019 7:03 pm
by Realizator
Showing a serial number is just a part of a boot process.

Your StereoPi can not boot. As I have no more details from you, I can share my suggestions:

1. Data on your micro SD is corrupted (boot partition).
This may be caused by occasional poweroff or ejecting micro SD card while boot process. If you have another Linux computer (or another Raspberry Pi), you can insert this card via cardreader and access your ext4 partition to save your data and code from this micro SD card. As S.L.P. Linux partition is read-only, your data is safe with 99.9% possibility (if micro SD is not damaged).

2. Your micro SD card is damaged
Sometimes micro SD card dies. It might be detected and recognized by the computer, but not all data can be written or read. Try to use another micro SD card.

3. You've changed something in settings, or installed some new stuff
As I have no details, it's just a suggestion. Kernel update, installing new drivers, changes in configuration files at /BOOT partition etc.
In this case I prefer to use fresh-written stock image and add new staff step-by-step. This way you can localize the step, leading to the problem.