Virtualizing MiniDexed in QEMU

[probonopd]

Virtualizing MiniDexed in QEMU might be useful for development and testing.

sudo apt-get install zip dosfstools kpartx parted
truncate -s +32M yourimage.img
sudo parted yourimage.img mktable msdos
sudo parted yourimage.img --script -a optimal 'mklabel msdos mkpart primary fat32 2048s 100% set 1 boot on quit'
sudo kpartx -a yourimage.img
loop_device="/dev/mapper/$(sudo kpartx -l "$image_file" | awk '{print $1}' | head -n1)"
sudo kpartx -d "$image_file"
sudo mkfs.fat -F32 "$loop_device"
sudo mount "$loop_device" /mnt
# FIXME: Mounting fails
mkdir contents
cd contents
unzip ~/Downloads/MiniDexed_2023-12-02-42ce72e.zip
cd -
sudo cp -r contents/* /mnt/
sudo umount /mnt
sudo kpartx -d "$image_file"

qemu-system-aarch64 -machine raspi3b -drive file=yourimage.img,if=sd,format=raw -kernel 4qemu/kernel8.img

Unfortunately I get:

00:00:00.76 emmc: Found a valid version 2.00 SD card
00:00:00.76 minidexed: Cannout mount partition: SD:

Am I doing it wrong @rsta2?

[omersiar]

I think qemu needs additional device for emulating SD card
https://liviaerxin.github.io/docs/qemu-raspberry-pi#emulate-raspberry-pi-3