# Built-in image registries LXD downloads images through [image registries](https://canonical.com/lxd/docs/latest/reference/image_registries/index.html.md#ref-image-registries). Every LXD server comes pre-configured with the following built-in image registries, which point to the default public image sources: `images` : This registry provides unofficial images for a variety of Linux distributions. The images are built to be compact and minimal, and therefore the default image variants do not include `cloud-init`. Where possible, `/cloud` variants that include `cloud-init` are provided. See [`cloud-init` support in images](https://canonical.com/lxd/docs/latest/cloud-init/index.html.md#cloud-init-support).
This registry does not provide official Ubuntu images (for those, use the `ubuntu` registry). It does, however, provide desktop variants of current Ubuntu releases.
See [`images.lxd.canonical.com`](https://images.lxd.canonical.com) for an overview of available images. `ubuntu` : This registry provides official stable Ubuntu images. All images are cloud images, which means that they include both `cloud-init` and the `lxd-agent`.
See [`cloud-images.ubuntu.com/releases`](https://cloud-images.ubuntu.com/releases/) for an overview of available images. `ubuntu-daily` : This registry provides official daily Ubuntu images. All images are cloud images, which means that they include both `cloud-init` and the `lxd-agent`.
See [`cloud-images.ubuntu.com/daily`](https://cloud-images.ubuntu.com/daily/) for an overview of available images. `ubuntu-minimal` : This registry provides official Ubuntu Minimal images. All images are cloud images, which means that they include both `cloud-init` and the `lxd-agent`.
See [`cloud-images.ubuntu.com/minimal/releases`](https://cloud-images.ubuntu.com/minimal/releases/) for an overview of available images. `ubuntu-minimal-daily` : This registry provides official daily Ubuntu Minimal images. All images are cloud images, which means that they include both `cloud-init` and the `lxd-agent`.
See [`cloud-images.ubuntu.com/minimal/daily`](https://cloud-images.ubuntu.com/minimal/daily/) for an overview of available images. The built-in registries all use the [simplestreams protocol](https://canonical.com/lxd/docs/latest/reference/image_registries/index.html.md#remote-image-server-types). They are marked as built-in and cannot be renamed, reconfigured, or deleted. To access images from additional sources, [create your own image registries](https://canonical.com/lxd/docs/latest/howto/image_registries/index.html.md#howto-image-registries). ## Related topics How-to guides: - [Images](https://canonical.com/lxd/docs/latest/images/index.html.md#images) Explanation: - [Local and remote images](https://canonical.com/lxd/docs/latest/image-handling/index.html.md#about-images)