FAQ

Why is flatpak included? Should I use flatpak?

https://github.com/secureblue/secureblue/issues/125#issuecomment-1859610560

My fans are really loud, is this normal?

During rpm-ostree operations, it's normal. Outside of that:

Make sure you followed the nvidia steps in the readme if you're using nvidia.
Make sure you're using a laptop image if you're using a laptop.
Make sure you're using an asus image if you're using asus.

Should I use firejail?

No, use bubblejail if there's no flatpak available for an app.

An app I use won't start due to a malloc issue. How do I fix it?

Override LD_PRELOAD for that app. For flatpaks, this is as simple as removing the environment variable via Flatseal.

On secureblue half of my CPU cores are gone. Why is this?

mitigations=auto,nosmt is set on secureblue. This means that if your CPU is vulnerable to attacks that utilize Simultaneous Multithreading, SMT will be disabled.

Should I use a userns image or not? What's the difference?

USERNS

How do I install `x`?

Check if it's already installed using rpm -qa | grep x
Check if there's a flatpak available at https://flathub.org
Consider using distrobox or nix to install it
Layer it using rpm-ostree install, as a last option

Another security project has a feature that's missing in secureblue, can you add it?

First check if the README already has an equivalent or better feature. If it doesn't, open a new github issue.

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FAQ