Unify suite builders on unshare backend#31
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Simon Beaudoin (simonbeaudoin0935) merged 1 commit intoJun 30, 2026
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Switch noble, questing, and trixie Dockerfiles from sbuild-createchroot/schroot setup to unshare tarball setup using mmdebstrap, matching resolute and sid behavior. Update AGENTS.md and README.md to reflect unified unshare backend expectations across Debian/Ubuntu suites. Signed-off-by: Simon Beaudoin <sbeaudoi@qti.qualcomm.com>
Simon Beaudoin (simonbeaudoin0935)
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Summary
noble,questing, andtrixieDockerfiles from schroot-stylesbuild-createchrootsetup to unshare/mmdebstrap tarball setupresoluteandsidbackend model:/root/.cache/sbuild/<suite>-arm64.tarwithmmdebstrap/root/.config/sbuild/config.pl--customize-hookAGENTS.mdandREADME.mdto describe the unified backend modelWhy
--mount-host-tmphelps where/tmpis the dominant pressure point, butschroot-backed suites can still hit disk pressure under
/varin Dockerstorage. Unifying on unshare tarballs removes schroot-specific behavior and
makes storage/runtime behavior consistent across suites.
Validation
python3 -m py_compile docker_deb_build.py./docker_deb_build.py --helppkg-examplebuild, but blocked in this environment becauseDocker CLI is unavailable
CI on this PR is expected to validate that all suite images still build.