[Libguestfs] Re: [RFC PATCH guestfs-tools] builder: templates: Add Ubuntu 24.04 cloud image support

Hi Richard, hi all, I am following up on this RFC The implementation is now ready for review in guestfs-tools PR #51: https://github.com/libguestfs/guestfs-tools/pull/51 It is rebased onto the current master. End-to-end Noble template generation, focused tests, image checks, and native-size BIOS/UEFI boots passed locally. The exact virt-builder ubuntu-24.04 --size 6G flow also completes and boots under UEFI; resized legacy-BIOS boot remains an open item documented in the PR. The Fedora workflow is waiting for first-time-contributor approval, so CI has not run yet. Richard, when you have a chance, could you please review the pinned, checksum-verified Canonical image approach and approve the workflow so CI can begin? Thanks, Aravind [Cisco Midnight Blue v1]<https://www.cisco.com/> Aravind Sivamani Software Engineer asivaman@cisco.com<mailto:asivaman@cisco.com> Phone: +1 984 999 1776 [cid:a530ddc6-4317-4b32-9b0f-18c68e49e229]<https://www.linkedin.com/in/... Cisco Systems NSO Packages and Tooling Services Sveavagen 25 Stockholm Sweden This email may contain confidential and privileged material for the sole use of the intended recipient. Any review, use, distribution or disclosure by others is strictly prohibited. If you are not the intended recipient (or authorized to receive for the recipient), please contact the sender by reply email and delete all copies of this message. Update Profile<https://www.cisco.com/c/en/us/about/help/login-account-help.ht... - Privacy<https://www.cisco.com/c/en/us/about/legal/privacy-full.html> - Company Registration<http://www.cisco.com/c/en/us/about/legal/terms-sale-softw... ________________________________ From: Aravind Sivamani (asivaman) Sent: Tuesday, July 21, 2026 1:51 AM To: guestfs(a)lists.libguestfs.org <guestfs(a)lists.libguestfs.org&gt; Cc: rjones(a)redhat.com <rjones(a)redhat.com&gt; Subject: [RFC PATCH guestfs-tools] builder: templates: Add Ubuntu 24.04 cloud image support Hi all, I’m working on adding Ubuntu 24.04 (Noble) support to the virt-builder template generator, and I’d appreciate feedback on the proposed approach. Ubuntu 24.04 no longer publishes the Debian Installer tree used by the existing virt-install/preseed path. This RFC imports a dated Canonical Noble cloud image, verifies its pinned SHA-256, converts it to raw, and then reuses the existing inspection, sysprep, compression, and index-generation stages. Existing installer-based templates remain unchanged. I tested this end to end on Ubuntu 24.04. The focused catalog/import tests, shell syntax, OCaml parsing, XZ integrity, and generated-index checks passed. The generated image had an empty machine ID, no SSH host keys or stale cloud-init state, and a locked root account. I have not run the full repository make check because this checkout lacked the generated Autotools bootstrap files. I’d especially appreciate your thoughts on: - Using a pinned dated image versus SimpleStreams - Preserving Noble’s native virtual size and cloud-init behavior - The expected BIOS/UEFI boot validation before publication Public branch: https://github.com/aravindsivamani/guestfs-tools/tree/ubuntu-24.04-cloud-... The patch is attached. Thanks for taking a look! Best, Aravind [Cisco Midnight Blue v1]<https://www.cisco.com/> Aravind Sivamani Software Engineer asivaman@cisco.com<mailto:asivaman@cisco.com> Phone: +1 984 999 1776 [cid:0f519272-8687-4198-bbaf-78420df04f06]<https://www.linkedin.com/in/... Cisco Systems NSO Packages and Tooling Services Sveavagen 25 Stockholm Sweden This email may contain confidential and privileged material for the sole use of the intended recipient. Any review, use, distribution or disclosure by others is strictly prohibited. If you are not the intended recipient (or authorized to receive for the recipient), please contact the sender by reply email and delete all copies of this message. Update Profile<https://www.cisco.com/c/en/us/about/help/login-account-help.ht... - Privacy<https://www.cisco.com/c/en/us/about/legal/privacy-full.html> - Company Registration<http://www.cisco.com/c/en/us/about/legal/terms-sale-softw...