F45 Change Proposal: Anaconda WebUI Fedora Atomic (self-contained)

:link: Anaconda WebUI Fedora Atomic

This is a proposed Change for Fedora Linux.
This document represents a proposed Change. As part of the Changes process, proposals are publicly announced in order to receive community feedback. This proposal will only be implemented if approved by the Fedora Engineering Steering Committee.

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:link: Summary

Switch the installer used by Fedora Atomic ISO images from the legacy GTK-based Anaconda installer to the new WebUI installer.

This aligns the installation experience of Atomic media with Fedora Workstation, KDE and Fedora Live Spins.

:link: Owner

:link: Detailed Description

The Anaconda WebUI is becoming the standard installer experience across Fedora. This proposal extends that transition to Fedora Atomic installer ISOs, providing a consistent installation experience with current Live installations.

Affected installer ISOs:

  • Fedora Silverblue
  • Fedora Kinoite
  • Fedora COSMIC Atomic
  • Fedora Sway Atomic (Sericea)
  • Fedora Budgie Atomic (Onyx)

:link: Feedback

:link: Benefit to Fedora

Reduces maintenance by using a single installer implementation. See also the Change proposal from WebUI adoption to Workstation.

:link: Scope

  • Proposal owners:
- Switch Fedora Atomic installer ISOs to use the Anaconda WebUI.
- Complete validation and testing across all affected Atomic variants.

  • Other developers:

  • Release engineering: #Releng issue number

  • Policies and guidelines: N/A (not needed for this Change)

  • Trademark approval: N/A (not needed for this Change)

  • Alignment with the Fedora Strategy:

:link: How To Test

Once the anaconda-webui package is required by anaconda main package [1] the affected Rawhide Atomic ISOs can be used for testing.

[1]spec: Enlarge the list of ISOs that use the Web UI by KKoukiou · Pull Request #7170 · rhinstaller/anaconda · GitHub

:link: User Experience

See Change proposal for WebUI adoption from different Fedora variants.

:link: Dependencies

The package for WebUI installer is maintained by the installer team and has dependency on Cockpit. There are not unfinished work items blocking this initiative.

:link: Contingency Plan

  • Contingency mechanism: If significant issues are identified before the release, Fedora Atomic installer ISOs will revert to using the GTK-based Anaconda installer
  • Contingency deadline: We have the contingency plan ready
  • Blocks release? No. We can revert the change easily if blockers show up

:link: Documentation

N/A (not a System Wide Change)

:link: Release Notes

Last edited by @amoloney 2026-07-22T14:26:50Z

Last edited by @amoloney 2026-07-22T14:26:50Z

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How do you feel about the proposal as written?

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  • Strongly opposed
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Nostalgia for the GTK installer aside I think this makes sense.

It aligns the Atomic Desktops with the Editions and since the legacy installer will likely see less maintenance anyway might as well.

Small nit: This should say the Fedora Atomic Desktops Installer ISO as there are currently no installer ISO produced for the Fedora Atomic / bootc base images in Fedora and if I’m not mistaken this is only for the ostree based images right now.

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Hum, if I understand spec: Enlarge the list of ISOs that use the Web UI by KKoukiou · Pull Request #7170 · rhinstaller/anaconda · GitHub correctly, then this will also apply to the bootable container images indirectly (which is fine, just noting things) and not just to the Atomic Desktops as well so the current wording should be fine?

1 Like

This is probably unintended fallout though also not the worst thing in the world. Since Fedora itself doesn’t produce anything from bootable containers (at least not for the artifacts listed here) it’s mostly out of scope for the change process.

However, we should probably be pretty loud that people building their own installer containers and then converting them to ISOs will start getting the Web UI.

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If memory serves me right, Anaconda WebUI allows manually specifying all needed partitions, including distinct /boot and /boot/efi partitions, separate from the existing ones in case of a dual-boot setup. If true, and users will be able to install Fedora Atomic alongside another OS (even if manual partitioning is needed), then I’m all in favor of this proposal.

Will this change also see Atomic Desktops move to a LiveCD or will it be a similar full-screen we’re used too.

It will still be non-live media, so “boot.iso” style. Full screen.

@kkoukiou maybe you can add a screenshot, otherwise I’ll try to add some later.

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