Image creation

Review the most notable changes to image creation between RHEL 9 and RHEL 10.

  • The image-buildercommand-line interface (CLI) tool is now generally available.
  • The web console provides an integrated workflow to build bootc-compatible container images from local container environments.
  • Output formats and target identifiers are aligned across both the web console and CLI, for example, aws for Amazon Machine Images and guest-image for QEMU Copy-On-Write 2 qcow2.
  • Includes automated system registration during first boot, support for user-specified custom base images, and safety warnings when building image-mode assets without a default user account.

Key highlights for RHEL installer:

  • The newly created users will have administrative privileges by default, unless you deselect the option.
  • You can now set the required time zone by using new options instead of the time zone map.
  • The remote desktop protocol (RDP) for graphical remote access replaces VNC.

Key highlights for RHEL image builder:

  • General availability of the image-builder CLI: The image-builder command-line interface (CLI) tool is now generally available for building operating system artifacts and image-mode assets directly from the terminal.
  • Streamlined web console image mode: Build bootc-compatible images from local containers directly in cockpit-image-builder.
  • Unified format names across the CLI and user interface (UI), such as aws for Amazon Machine Images (AMIs) and guest-image for QEMU Copy-On-Write 2 (qcow2).
  • Expanded image mode support: Added automated system registration during first boot, support for custom base images, and missing default-user warnings.

For more information, see New features and enhancements - Installer and image creation.