# Download Ubuntu 22.04 LTS cloud image wget https://cloud-images.ubuntu.com/jammy/current/jammy-server-cloudimg-amd64.img
An is a pre-configured, ready-to-run file containing the Ubuntu operating system designed to boot inside a virtual machine (VM) . Unlike a standard .ISO installer , which requires a manual setup process, these images are "pre-installed," allowing users to bypass installation menus and jump directly to a functional environment. Common Formats and Extensions ubuntu vm image
source "qemu" "ubuntu" iso_url = "https://releases.ubuntu.com/22.04/ubuntu-22.04.3-live-server-amd64.iso" iso_checksum = "sha256:123abc..." output_filename = "ubuntu-custom.qcow2" ssh_username = "ubuntu" boot_command = ["<esc><wait>", "e<wait>", "<down><down><end><wait>", " autoinstall<wait>"] # Download Ubuntu 22
Create a user-data file:
| Problem | Likely Cause | Solution | |---------|--------------|----------| | "No network" after boot | cloud-init network config missing | Use --network bridge=br0 or provide netplan config | | SSH connection refused | SSH not enabled by default | Add ssh_pwauth: true in user-data | | Disk full | Image resized but partition not grown | Run sudo growpart /dev/sda 1 + sudo resize2fs | | Slow boot | Cloud-init timeout on metadata | Use datasource_list: [ NoCloud, None ] in /etc/cloud/cloud.cfg.d/ | Compatible with VirtualBox, VMware, and Hyper-V
#cloud-config users: - name: admin ssh_authorized_keys: - ssh-rsa AAAAB3NzaC1yc2E... sudo: ALL=(ALL) NOPASSWD:ALL package_update: true packages: - docker.io - htop
"Need a sandbox? Need a server? Download the Ubuntu VM Image. Compatible with VirtualBox, VMware, and Hyper-V. Reliable. Secure. Free."
