Import Apt Repository Key

• apt-get update got error: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY
• After add *deb http://apsy.gse.uni-magdeburg.de/debian etch main non-free* and *deb-src http://apsy.gse.uni-magdeburg.de/debian etch main non-free* into */etc/apt/sources.list*, run *apt-get update* got following error message:
  • Error Message:
    • W: GPG error: http://apsy.gse.uni-magdeburg.de etch Release: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY A5D32F012649A5A9
    • W: You may want to run apt-get update to correct these problems
• Solution:
  • gpg —keyserver pgpkeys.pca.dfn.de —recv-keys A5D32F012649A5A9
  • gpg —fingerprint A5D32F012649A5A9
  • gpg —export -a A5D32F012649A5A9 | apt-key add -

See also:

1. this