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Add unknown third-party PGP key to debian apt package manager keyring

Possible errors when running ''aptitude udpate''

aptitude update 
W: GPG error: http://ftp.de.debian.org etch Release: Die folgenden Signaturen konnten nicht überprüft werden, weil ihr öffentlicher Schlüssel nicht verfügbar ist: NO_PUBKEY 9AA38DCD55BE302B 
W: There is no public key available for the following key IDs: 
aptitude update 
W: GPG error: http://software.open-xchange.com  Release: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY DD1A5E9CEED949F0 
W: You may want to run apt-get update to correct these problems 


Fetch PGP key from keyserver and import into APT keyring:

gpg --recv-keys 9AA38DCD55BE302B 
gpg --export 9AA38DCD55BE302B | apt-key add - 

Optional, if required

keyserver hkp://subkeys.pgp.net 

See also

tricks/linux/add-unknown-third-party-pgp-key-to-debian-apt-package-manager-keyring.txt · Last modified: 2019/05/26 15:04 (external edit)