EBBR Notes 2018.05.24

24 May 2018

Attendees

• Alex Graf (SUSE)
• Rob Herring (Linaro)
• Udit Kumar (NXP)
• Grant Likely (Arm)
• Leif Lindholm (Linaro)
• Bill Mills (TI)
• Tom Rini (Konsulko)
• Daniel Thompson (Linaro)

Agenda

1. Issue review
2. Document layout (Grant/Bill)
3. MBR/GPT partitioning rules (Daniel)
4. How to we handle testing? (Udit)
5. Etiquette of discussion (Daniel)
   1. Do we discuss on mailing list or on GitHub issues?
   2. Answer: Discuss on Mailing LIst; summarize on github issue.

Notes

Issue Review:

https://github.com/ARM-software/EBBR/issues

• Remove Daniel from #13
• Remove BIll form #14
• Leave #16 open until CI loop is set up so that PDF is referenced

Document Layout

MBRs and protective partitions

• Need to add follow-on issues in github:
  • El-torito or not?
  • Management of ESP
• We will disallow hybrid MBRs
• Conclusion
  • Agree to disallow Hybrid-MBR scheme
  • Agree long term goal is to require GPT support in masked roms
    • (thought about this after: this is just for block devices; UFS media has native partitioning)
  • Disagreement on whether to require firmware components to be stored in ESP, or require a separate firmware partition.
    • Separate ESP & Firmware partitions means the ESP can be completely cleared to recover a bad OS install
    • Unified ESP & Firmware partition means one less partition to manage and is easier to add files to
    • Daniel will post patch v2 and leave this question open. Will discuss more and resolve later.