CI now runs a headless QEMU boot test after the smoke test:
- Boots ISO with -nographic, captures serial output
- Watches for "Press Enter to start installation" (pass)
- Detects kernel panic or initramfs shell (fail)
- 120 second timeout, runs as continue-on-error
Also: updated iso-debug reference with embedded vs appended EFI
findings from real hardware testing.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
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