I want to get a ppa key signed

I tried

apt-key adv --keyserver keyserver.ubuntu.com --recv-keys A258828C     

Executing: gpg --ignore-time-conflict --no-options --no-default-keyring --secret-keyring /etc/apt/secring.gpg --trustdb-name /etc/apt/trustdb.gpg --keyring /etc/apt/trusted.gpg --primary-keyring /etc/apt/trusted.gpg --keyserver keyserver.ubuntu.com --recv-keys A258828C
gpg: requesting key A258828C from hkp server keyserver.ubuntu.com
gpgkeys: HTTP fetch error 7: couldn't connect to host
gpg: no valid OpenPGP data found.
gpg: Total number processed: 0


wget -q http://ppa.launchpad.net/panda3d/ppa/ubuntu/dists/lucid/Release.gpg -O- | apt-key add -

gpg: no valid OpenPGP data found

I am behind a proxy , in apt.conf it is configured correctly

Acquire::http::Proxy "http://proxy.mycompany.de:3128";

I also tried setting proxy

export http_proxy="proxy.mycompany.de:3128"
export https_proxy="proxy.mycompany.de:3128"
  • i think this solution can resolve your problem -> askubuntu.com/questions/23211/… another work around is gpg –keyserver hkp://keyserver.ubuntu.com:80 –recv-keys A258828C
    – hhlp
    Commented Feb 28, 2011 at 16:13
  • sorry it's sudo gpg --keyserver hkp://keyserver.ubuntu.com:80 --recv-keys A258828C
    – hhlp
    Commented Feb 28, 2011 at 16:42

3 Answers 3



export http_proxy=http://proxy.mycompany.de:3128; export https_proxy=$http_proxy
sudo -E apt-key adv --keyserver keyserver.ubuntu.com --recv-keys A258828C     
  • 1
    it works, thanks so much! ( sudo -E is the key for me )
    – Siwei
    Commented May 15, 2012 at 3:21

Did you forget to use sudo?

If you did and it failed, also try this:

sudo gpg --ignore-time-conflict --no-options --no-default-keyring --secret-keyring /etc/apt/secring.gpg --trustdb-name /etc/apt/trustdb.gpg --keyring /etc/apt/trusted.gpg --primary-keyring /etc/apt/trusted.gpg --keyserver hkp://keyserver.ubuntu.com:80 --recv A258828C

Try running sudo -s before

apt-key adv --keyserver keyserver.ubuntu.com --recv-keys A258828C

This worked for me.


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