linuxboot / linuxboot/book

UEFI vs LinuxBoot: split of config + payload

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Dominant language
JavaScript
Stars
300
Forks
54
PR merge metrics
No merged PRs in 30d

Description

In UEFI, there is a split: the boot entries are stored in flash ("NVRAM"), whereas the actual payloads reside in the EFI System Partition. Those easily get out of sync.

LinuxBoot enables us to bring them together, e.g.:
Have Boot Loader Specification boot entries in the same partition as the kernels and initrds they reference.

In addition, EFI implementations would struggle with multiple ESPs, and the spec requires that removable media only have a single one.
Lots of confusion around this and clarifications are found in
https://news.ycombinator.com/item?id=16259373

Contributor guide

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First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

No file or chapter is named; start by locating the relevant LinuxBoot book section on UEFI boot entries and payloads, then review the linked Hacker News discussion for the stated confusion. Done means the book clearly explains where boot entries, kernels, and initrds reside and how LinuxBoot addresses the split and multiple-ESP concerns.

Written by the indexing model from the issue text.

Assessment

Tech stack
linux
Domain
documentation, operating-systems
Issue type
Documentation
Difficulty
4/5
Estimated time
3-5 days
Activity status
Stale
Clarity
Needs clarification
Newbie friendliness
30/100

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