setup hosts

download debian bullseye:

wget https://cloud.debian.org/images/cloud/bullseye/latest/debian-11-generic-amd64.qcow2

for baremetal download the iso:

http://mirrors.ocf.berkeley.edu/debian-cd/11.7.0/amd64/iso-cd/debian-11.7.0-amd64-netinst.iso

resize cloud image:

cp debian-11-generic-amd64.qcow2 debian-11-generic-amd64_100G.qcow2
qemu-img resize ddebian-11-generic-amd64_100G.qcow2 +99G

expand image:

virt-resize --expand /dev/sda1 debian-11-generic-amd64.qcow2 debian-11-generic-amd64_100G.qcow2

references