Minimal Debian VM Setup

# Minimal Debian Virtual Machine

#required host tools
sudo apt install libguestfs-tools qemu-system

#get small debian image
wget -c "https://cloud.debian.org/images/cloud/bookworm/latest/debian-12-nocloud-amd64.qcow2" -O debian_small.qcow2

#create 10G image and copy/resize small image to 10g image
echo "Creating a 10G img file..."
sleep 1
qemu-img create -f qcow2 -o preallocation=metadata debian.qcow2 10G

echo "Copying and Expanding Image"
sleep 1
virt-resize --expand /dev/sda1 debian_small.qcow2 debian.qcow2

#run virtual machine
qemu-system-x86_64 -enable-kvm -m 4G -hda debian.qcow2

# once in VM here is a helper script
https://filmsbykris.com/scripts/debian_setup.txt