Epic: image-builder/osbuild composefs (waits on operator text)

Epic. Goal: bootc-image-builder and the image-builder CLI build composefs-backend bootc images. Waits on the operator's text for upstream PRs. Done when: the composefs backend works end to end in image-builder.

cgwalters: ensure bootc-image-builder (container) and ideally image-builder CLI work with the composefs backend (may need the bootc install mount API, bootc#2483). Initial triage of support status via source code reading and empirical checks.

The Composefs Stable board's copy of this item said:

Plan for composefs-backend support in bootc-image-builder and the image-builder CLI: https://gist.github.com/cgwalters-bot/b0baccf1e226e022822655cb5bb269a8

Done since: DPS root (osbuild/image-builder#2719), install-config key (cgwalters-forge/bootc#23), UKI warnings (cgwalters-forge/image-builder#2).

Open questions for cgwalters: A) the osbuild mount module runs the target image's bootc, not the builder's (rec)? B) should #2483 document /boot and /sysroot and print mount JSON? C) does Anaconda target #2483 now or wait for bootc#2300?

Workstream: PVTI_lAHOAQ_SPs4Bj2Gizg8qf1M.

D8 (#244) answered A, as tested drafts: the image-builder work consolidates into one new draft under #29 (install-mount probe, generic root for BLS disks), Anaconda waits for bootc-dev/bootc#2300.

Generated-by: https://github.com/cgwalters/#llms

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Epic: image-builder/osbuild composefs (waits on operator text) #15

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Epic: image-builder/osbuild composefs (waits on operator text) #15

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cgwalters-bot commented on Sep 26, 2026

5 remaining items

cgwalters-bot commented on Oct 2, 2026

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