Hello, Please find below a patch for guestfs-tools to add Ubuntu 24.04 (noble) virt-builder template support via the official cloud image. Ubuntu 24.04 (noble) no longer publishes the legacy debian-installer netboot tree: http://archive.ubuntu.com/ubuntu/dists/noble/main/installer-amd64/ -> 404 make-template.ml depends on that path (preseed + virt-install), so it cannot build noble templates. This patch adds make-ubuntu-cloud-template.sh, which downloads the official noble server cloud image, applies the same customizations as existing Ubuntu virt-builder templates (root password, cloud-init disabled, builder user removed), converts to raw, compresses with xz, and writes a valid index fragment. detect-cloudimg-expand.sh finds the expand= partition (cloudimg-rootfs on noble). make-template.ml now directs ubuntu 24.04 users to the cloud script. Tests: - test-make-ubuntu-cloud-template.sh (argument checks, expand helper, cloud URL reachability, noble installer-amd64 absent) - test-make-template-noble.sh (make-template.ml redirect) - test-make-ubuntu-cloud-template-integration.sh (slow; downloads image) Validated manually on Ubuntu noble with libguestfs-tools: virt-ls, guestmount, virt-index-validate on generated index fragment. subramanianaug(a)gmail.com (1): builder: add Ubuntu 24.04 cloud-image template builder builder/templates/Makefile.am | 16 +- builder/templates/README-ubuntu-cloud.md | 52 ++++++ builder/templates/detect-cloudimg-expand.sh | 67 +++++++ builder/templates/make-template.ml | 5 + .../templates/make-ubuntu-cloud-template.sh | 165 ++++++++++++++++++ builder/templates/test-make-template-noble.sh | 39 +++++ ...-make-ubuntu-cloud-template-integration.sh | 52 ++++++ .../test-make-ubuntu-cloud-template.sh | 77 ++++++++ 8 files changed, 472 insertions(+), 1 deletion(-) The patch itself follows in a separate message. I would appreciate any review and feedback. Thank you.