bootc-ubuntu-setup: Exclude AMD-SEV OVMF on Ubuntu 26.04 - #58
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Ubuntu Resolute's OVMF metapackage selects AMD-SEV firmware by default, which is not the generic firmware expected by libvirt on these runners. Keep apt's normal recommendations while explicitly installing ovmf-generic and excluding ovmf-amdsev. Assisted-by: AI Signed-off-by: Colin Walters <walters@verbum.org>
Verify that Ubuntu 26.04 retains normal virtualization recommendations while selecting generic OVMF and excluding AMD-SEV firmware. Pull-request validation checks package state; manual dispatch carries the CentOS Stream 10 bcvk conversion and SSH probe separately from the required PR gate. Assisted-by: AI Signed-off-by: Colin Walters <walters@verbum.org>
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The only failing required check hit a transient Quay |
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Ubuntu 26.04 splits OVMF firmware variants into separate packages, while the
ovmfmetapackage pulls all of them in. Its AMD-SEV descriptor can satisfy libvirt's genericsecure=nofirmware request, causing bcvk GRUB guests to receive stateless SEV firmware that cannot restore their boot entry.Explicitly select
ovmf-genericand excludeovmf-amdsevwhile preserving the rest of apt's virtualization recommendations. Add package-state validation and a manual CentOS Stream 10bcvk libvirt run --firmware=uefi-insecuresmoke test that verifies SSH and cleanup.This fixes the VM failures observed in bootc-dev/bootc#2454.
Testing:
actionlint -ignore 'label "ubuntu-26.04"'\n-git diff --check\n- Fork PR checks: https://github.com/cgwalters-bot/actions/actions/runs/34879018281\n- CentOS Stream 10 libvirt/SSH smoke: https://github.com/cgwalters-bot/actions/actions/runs/34879456726\n\nAssisted-by: AI\nUnit and workflow tests are LLM-generated and were executed on the fork branch. Human review is required before adding a DCO signoff.