this post was submitted on 28 Feb 2026
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Distributions include the Linux kernel and supporting system software and libraries, many of which are provided by the GNU Project. Many Linux distributions use the word "Linux" in their name, but the Free Software Foundation uses the name GNU/Linux to emphasize the importance of GNU software, causing some controversy.

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Update error on Aurora (uBlue) - How to fix? (slrpnk.net)
submitted 1 day ago* (last edited 1 day ago) by Guenther_Amanita@slrpnk.net to c/linux@lemmy.ml
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I haven't been able to update my OS for a few weeks now.
I'm getting error messages anytime the system updates in the background, and when I do it manually, it shows following error:

Pulling manifest: ostree-image-signed:docker://ghcr.io/ublue-os/aurora:stable error: Preparing import: Fetching manifest: failed to invoke method OpenImage: open /etc/pki/containers/ublue-os.pub: no such file or directory

I already tried fixing it myself by doing a rebase, but it didn't work, no matter what image I chose.

sudo rpm-ostree rebase ostree-unverified-registry:ghcr.io/ublue-os/aurora:latest Pulling manifest: ostree-unverified-registry:ghcr.io/ublue-os/aurora:latest error: Preparing import: Fetching manifest: failed to invoke method OpenImage: open /etc/pki/containers/ublue-os.pub: no such file or directory

sudo bootc switch ghcr.io/ublue-os/aurora:stable error: Switching: Switching (ostree): Preparing import: Fetching manifest: failed to invoke method OpenImage: open /etc/pki/containers/ublue-os.pub: no such file or directory

What next steps should I try? Is there even a fix for it right now?

Edit: I ran sudo cp -a /usr/etc/containers/policy.json /etc/containers, which fixed my problem. Thanks a lot for the help!

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[–] pheusie@programming.dev 5 points 1 day ago* (last edited 1 day ago) (1 children)

~~Did you try rpm-ostree reset ?~~

EDIT: The solution provided above 'could' perhaps work, but perhaps it's way too radical of a solution 😅 ..., so I understand if you don't wanna go down that route. Instead, consider

sudo cp -a /usr/etc/containers/policy.json /etc/containers

as per this comment on github.

[–] Guenther_Amanita@slrpnk.net 2 points 1 day ago* (last edited 1 day ago) (1 children)

No change.

EDIT: Fixed! Thanks a lot!

[–] pheusie@programming.dev 4 points 1 day ago* (last edited 1 day ago)

Glad to help out 😊!

Thankfully the model forces upon the system to keep a pristine copy around. Which enabled us to fix this rather easy :P .