onny

wget http://dl-cdn.alpinelinux.org/alpine/v3.15/releases/armv7/alpine-uboot-3.15.0-armv7.tar.gz
wget http://dl-cdn.alpinelinux.org/alpine/v3.15/releases/armv7/alpine-minirootfs-3.15.0-armv7.tar.gz

qemu-img create -f raw sd.img 512M

sudo losetup /dev/loop0 sd.img 
sudo kpartx -av /dev/loop0
lsblk
sudo mkfs.ext4 /dev/mapper/loop0p1
mount /dev/mapper/loop0p1 /mnt

onny

Setting up qemu VM using nix flakes

Did you know that it is rather easy to setup a VM to test your NixOs configuration?

Create simple flake:

# flake.nix
{
  inputs.nixpkgs.url = "github:NixOS/nixpkgs/nixpkgs-unstable";