Raspberry Pi 3 does not boot with Alpine Linux
I followed the steps outlined on this wiki page. I created an empty FAT32 partition on my SD card, and downloaded and extracted the armhf image from here onto the SD card. Upon booting, it gets stuck at a rainbow screen, and the LED on the Pi does 7 short flashes. This seems to indicate a missing kernel, however, in config.txt, I have this entry
[pi3]
kernel=boot/vmlinuz-rpi2
initramfs boot/initramfs-rpi2
and I have confirmed that both vmlinuz-rpi2 and initramfs-rpi2 exist under the boot directory.
I am using a Raspberry Pi 3 Model B V1.2 from 2015 with a 32 GB SanDisk Ultra Plus Micro SD card, and attempting to install Alpine Linux 3.18.2 Raspberry Pi armhf version.