[Article Proposal] Testing composefs on Fedora 41 Atomic Desktops

[mateusrodcosta (Mateus Rodrigues Costa)]

Article Summary:

Composefs mounts the root system as true read-only and is going to be the default for Fedora Atomic Desktops on Fedora 42 and should already be enabled on the container-based Atomic Desktops images.

The idea is to explain the benefits for end users and teaching how to test the feature (of course, mentioning the drawbacks)

Article Description:

• Initially composefs was available for testing as instructed in Testing composefs in Silverblue – Alexander Larsson
• Later on composefs was migrated to a kernel command line flag
• composefs is already enabled for IoT on Fedora 41 and will be enabled to Atomic Desktops on 42: Changes/ComposefsAtomicDesktops - Fedora Project Wiki
• This benefits the user for a true read-only root filesystem compared to today
• I might need to explain for the user what is EROFS (might be useful to compare to its usage in Android as well)
• I should list the know issues for composefs as well: Composefs :: Fedora Docs

Do note that I plan on waiting until Fedora 41 at least reaches General Availability to publish this article.

[glb (Gregory Lee Bartholomew)]

This sounds interesting. Thanks. +1 from me.

[rlengland (Richard England)]

+1 from me. I’ve opened Pagure ticket #331 to track this issue.

As usual, when you have the article ready for review, please leave a preview link to the WordPress article as a coment on ticket #331.

Also, any suggestions for a feature image for the article would be helpful if you have something.

Thank you.