I just updated my odroid hc2 from bookworm to trixie. Everything went find and the system is running. However, I now get the following message from "apt-get update":
W: https://github.armbian.com/configng/dists/stable/InRelease: Policy will reject signature within a year, see --audit for details
W: http://apt.armbian.com/dists/trixie/InRelease: Policy will reject signature within a year, see --audit for details
Using the --audit option I get:
W: https://github.armbian.com/configng/dists/stable/InRelease: Policy will reject signature within a year, see --audit for details
A: https://github.armbian.com/configng/dists/stable/InRelease: Sub-process /usr/bin/sqv returned an error code (1), error message is:
Signing key on DF00FAF1C577104B50BF1D0093D6889F9F0E78D5 is not bound:
No binding signature at time 2025-10-06T08:29:30Z
because: Policy rejected non-revocation signature (PositiveCertification) requiring second pre-image resistance
because: SHA1 is not considered secure since 2026-02-01T00:00:00Z
Missing key 8CFA83D13EB2181EEF5843E41EB30FAF236099FE, which is needed to verify signature.
W: http://apt.armbian.com/dists/trixie/InRelease: Policy will reject signature within a year, see --audit for details
A: http://apt.armbian.com/dists/trixie/InRelease: Sub-process /usr/bin/sqv returned an error code (1), error message is:
Signing key on DF00FAF1C577104B50BF1D0093D6889F9F0E78D5 is not bound:
No binding signature at time 2025-10-07T19:06:52Z
because: Policy rejected non-revocation signature (PositiveCertification) requiring second pre-image resistance
because: SHA1 is not considered secure since 2026-02-01T00:00:00Z
Missing key 8CFA83D13EB2181EEF5843E41EB30FAF236099FE, which is needed to verify signature.
So a key is missing. Where can I get it? And how to install it?
Jürgen