So, let's get started! * Picking a set of tools for this series. * Creating a VM that can use all our cores. * Setting up port for... fasterthanli.me the official Ubuntu images for public clouds, Openstack, KVM and LXD Ubuntu Cloud Images are the official Ubuntu images that have been customised by Canonical to run on public clouds that provide Ubu... Ubuntu Cloud Images Show all Feature Cloud Images Standard ISOs Desktop Images Best For Automated scaling, servers, and CI/CD Custom manual installations Local workstations with a GUI Size Lightweight (often <700MB) Large (multi-GB) Very large Config Managed via
| Format | Primary Use Case | Key Characteristics | |--------|------------------|----------------------| | ( .qcow2 ) | OpenStack, KVM, Proxmox | No graphical installer; uses cloud-init ; minimal package set; optimized for first-boot configuration | | Cloud Images ( .img ) | AWS, GCP, Azure (after conversion) | Raw format with partition table; requires cloud-specific agents (e.g., waagent for Azure) | | Vagrant Boxes ( box file) | Development (VirtualBox, libvirt) | Includes VirtualBox Guest Additions or virtio drivers; user vagrant with insecure key; shared folder support | | OVA/OVF | vSphere, ESXi | VMX descriptor + VMDK disk; typically pre-configured for VMware paravirtual SCSI and vmxnet3 | | Live Server ISO | Manual interactive install | Contains debian-installer or Subiquity; not a VM image per se but can generate one post-install | ubuntu vm images
Default emulated devices (e.g., e1000 NIC, ide disk) are slow. Ubuntu images prefer: So, let's get started