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composefs: switching from a BLS install to a UKI image fails with "Conflicting boot types" and breaks subsequent bootc commands

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Evaluación

Dificultad
4/5
Tiempo estimado
3-5 días
Aptitud para principiantes
48/100
Tipo de issue
Error
Claridad
Bastante claro
Estado de actividad
Activo
Stack tecnológico
rust

Línea de trabajo

Start with the composefs deployment status check in crates/lib/src/bootc_composefs/status.rs around lines 990–995, which the issue identifies as requiring all deployments to share one boot type. Trace how switching and garbage collection handle a staged UKI deployment alongside a BLS deployment, and check the related issue #2422 for context. Done when the switch either preserves the BLS deployment for rollback or fails with a clear error before staging, and subsequent status and rollback commands remain usable.

Escrito por el modelo de indexación a partir del texto del issue.

Descripción

Starting from a bootc composefs backend + systemd-boot system with a BLS image, bootc switch to a UKI image fails during grabadge collection after staging it. Any following commands like bootc status, bootc rollback fail with the same error:

error: Switching: Composefs Switching: Performing Upgrade Operation: Running composefs garbage collection: Getting composefs deployment status: Getting composefs deployment status: Conflicting boot types
$ sudo bootc status
error: Status: Getting composefs deployment status: Getting composefs deployment status: Conflicting boot types

The status code requires every deployment to share one boot type (status.rs#L990-L995).

Expected behavior:

  1. The switch succeeds and keeps the BLS deployment for rollback.
  2. Or bootc simply refuses with a clear error msg before staging.

Tested on bootc v1.16.10 + Ubuntu 26.04 image, but this will still happen on main currently as well.

Maybe related: #2422

Lenguaje dominante
Rust
Estrellas
2.3k
Forks
230
Merge medio
2 d 19 h
PR fusionados (30 d)
56

Preparar el entorno

Primeros pasos

  1. Lee el issue completo y luego la guía de contribución del proyecto.
  2. Comenta en el issue que vas a ocuparte — evita que dos personas hagan lo mismo.
  3. Haz un fork del repositorio y trabaja en una rama.
  4. Abre un pull request que haga referencia al número del issue.

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