by jmmec » Sat Jul 20, 2019 2:27 am
FWIW in case this helps someone...
I just got a 2GB version of the Pi4 in the mail and did the following to get it to boot this evening:
1. On a Pi3 board, I last updated Arch about 2 months ago (!), so did a "pacman -Syyu" to update everything to latest, and then did a reboot to make sure that the Pi3 booted up OK.
2. Installed the SD in the Pi4 and it wouldn't boot: the red light came on, and the green light flickered a bit and stopped. No boot.
3. Verified that the EEPROM on the Pi4 wasn't corrupted by following the instructions:
$this->bbcode_second_pass_code('', 'Recovery
If your Raspberry Pi 4 will not boot, it is possible that the SPI EEPROM has become corrupted.
To check, remove the SD card, disconnect the device from power, then reconnect it. If the green LED does not flash, you will need to reprogram the EEPROM:
Download the bootloader
Extract it to an empty FAT-formatted SD card and insert it into your Raspberry Pi 4
Connect the power and wait for the green LED to flash quickly
https://www.raspberrypi.org/downloads/
')
4. Pulled the SD card and edited the "/boot/config.txt" file such that it only contains the line below, so commented out everything else including stuff about enabling the camera (that I have on the Pi3), etc...
$this->bbcode_second_pass_code('', '
initramfs initramfs-linux.img followkernel
')
5. Reinstalled the SD card and the Pi4 booted right up, and WiFi is working just fine: I'm running it headless since I don't have an HDMI adapter, but my WiFi network settings were already installed from using it on the Pi3, so I was able to ssh into it.
I don't know what settings in my config.txt were causing it not to boot, and I haven't tested anything else, but so far it at least boots.
Regards