BUMP! One should be able to see bootup log on tty1, as usual. However, kernel cmdline have been modified to use /dev/ttyFIQ0 for debug output, and need to be changed. This has been requested repeatedly from FriendlyElec, and without any response as of year later. How to modify kernel cmdline, is the...

1. That is a very non-standard UART baud rate. Typically you would expect standard rates of: [115200, 230400, 460800, 921600], on the serial debug interface. 2. Make sure you're using a good serial to USB converter, as the clock divider need to be accurate and without noise. 3. I cannot properly se...

ppsx wrote:
FYI: Armbian 24.5.1 re-enabled GPIOFS, so the possiblitiy of using well known method of playing with gpio pins (/sys/class/gpio/) is back and there's no reason to use miserable gpiod toolset

How do you check?

BUMP

Make sure to connect with the non-standard 1,500,000 baud rate.

Hi, I need to modify the kernel cmdline to support more console devices and provide the dmesg bootup log, as is customary on most linux machines. However, I cannot find any info on how to do this. The whole system is different from what I am used to. Basically all these settings are exposed on ` cat...