Beginners • about the problems after changed the config on Raspberry Pi CM4

Hi

I am testing with a CM4 and CM4 IO board.
I want the messages to appear in the PC's console window from the moment CM4 is powered on until the initial boot is complete.
Also, I want to interact with the console window on the PC similar to the LCD's console, entering Linux commands, etc.

So, for console setup,
I added dtoverlay=uart2 at the bottom of /boot/console.txt,
and in /boot/cmdline.txt, I set console=ttyAMA2,115200.

After doing this, I encountered several issues:

1. No messages or the initial window screen is displayed on the LCD.
2. A lot of messages are initially output to the PC terminal.
It seems to be acting as a console, but the boot directory is not visible,
and it doesn't seem to be a typical prompt as follows. 3. When trying to flash the OS to eMMC using Imager via the micro USB on the CM4 IO board,
the CM4's eMMC did not appear in the storage selection.
Therefore, I was unable to flash the OS to eMMC again. Why are these issues occurring, and how can they be resolved?
Please help me.

Statistics: Posted by sonds1 — Thu Jan 11, 2024 3:25 am

---