On Tue, 26 Apr 2016 16:07:25 +0200
Fred DC <adei@???> wrote:

> By updating devuan ascii I get the following error:
>
> Failed to fetch
> http://packages.devuan.org/devuan/dists/ascii/InRelease The following
> signatures couldn't be verified because the public key is not
> available: NO_PUBKEY
>
> Any advise?


assuming that "$KEY_ID" is the correct Devuan archive signing key, as
root or sudo'ed:

$ gpg --recv-key $KEY_ID
$ gpg --export $KEY_ID | apt-key add -

resp. in one go:

$ apt-key adv --keyserver hkp://keys.gnupg.net \
          --recv-key $KEY_ID

florian