What is Boot Failure Checklist?
Quick note explaining Boot Failure Checklist for BIOS/UEFI and embedded firmware readers.
What is Boot Failure Checklist?
Boot Failure Checklist is a firmware-debugging concept used to understand return status, logs, commands, or failure points.
Why it matters
- Provides a quick way to classify firmware-debug information.
- Helps narrow down whether the problem is in PEI, DXE, BDS, SMM, or OS handoff.
- Useful when reading logs, shell output, or status codes.
Practical example
Example: when boot fails, first identify the last visible phase in the log—PEI, DXE, BDS, or OS loader—before debugging individual modules.
Quick checklist
- Which phase is the last confirmed point in the log?
- Is there enough context around the failure?
- Can UEFI Shell output confirm the same state?
Quick takeaway
Boot Failure Checklist is a small concept, but it often becomes important when reading logs or debugging real firmware.
Related notes
Public references
- UEFI Specification 2.11 — Boot Manager
- UEFI PI Specification 1.9
- TianoCore EDK II source code
- UEFI Shell Specification 2.2
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Một số bài viết, ghi chú hoặc project có liên quan đến nội dung bạn vừa đọc.
What is PEI Fail Checklist?
Quick note explaining PEI Fail Checklist for BIOS/UEFI and embedded firmware readers.
What is DXE Dependency Checklist?
Quick note explaining DXE Dependency Checklist for BIOS/UEFI and embedded firmware readers.
What is HOB?
Quick note explaining HOB for BIOS/UEFI and embedded firmware readers.
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