symptom:

> apt update
...
Err:8 https://github.armbian.com/configng stable InRelease               
  The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 93D6889F9F0E78D5
...
W: Failed to fetch https://github.armbian.com/configng/dists/stable/InRelease  The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 93D6889F9F0E78D5

observed in Armbian image for Orange pi zero 3 Armbian_community_25.8.0-trunk.90_Orangepizero3_bookworm_current_6.12.30_minimal.img build date May 28, 2025

 

fix:

- run this as root

> su - 
^ login as root
> wget -O - https://apt.armbian.com/armbian.key | gpg --dearmor -o /usr/share/keyrings/armbian.gpg

 

you should find a file /usr/share/keyrings/armbian.gpg about 2 KB in size

 

repeat apt update etc should have resolved the error

also getting this on latest community builds of aml-s9xx-box at https://www.armbian.com/amlogic-s9xx-tv-box/

e.g.

https://dl.armbian.com/aml-s9xx-box/Bookworm_current_xfce

 

```

PRETTY_NAME="Armbian_community 25.8.0-trunk.90 bookworm"

```

 

wondering if something is broken or missing on the build

Edited June 14, 20251 yr by Jens J.

I think this is @Igor's signing key

 

aml-s9xx-box:~:# gpg --keyserver keyserver.ubuntu.com --recv-keys 93D6889F9F0E78D5

gpg: key 93D6889F9F0E78D5: 1 duplicate signature removed

gpg: key 93D6889F9F0E78D5: public key "Igor Pecovnik <igor@armbian.com>" imported

gpg: Total number processed: 1

gpg:               imported: 1

Edited June 14, 20251 yr by Jens J.

A fix has been pushed. It will take up to a week until all new images have it.

I think using the ubuntu keyserver is good as well

but that this is a 'small' issue, it is easy to miss a small thing in a project this huge consider the number of boards, kernels, and distributions (including the different releases).

if this little thing breaks, we can fix in our installed os using these methods.