[ale] Public Key Server Failure

[Gregory Beyer]

Hello,

While attempting an update of my Ubuntu system (apt-get update) I 
encountered this pgp error:

      W: GPG error: http://ppa.launchpad.net trusty Release: The 
following signatures couldn't be verified because the public key is not 
available: NO_PUBKEY 90BD7EACED8E640A

Researching this I determined that I can "go get" the public key with this:

      sudo apt-key adv --keyserver ppa.launchpad.net --recv-keys 
90BD7EACED8E640A

Here's the full output of that command

      Executing: gpg --ignore-time-conflict --no-options 
--no-default-keyring --homedir /tmp/tmp.PijqRBl7dW 
--no-auto-check-trustdb --trust-model always --keyring 
/etc/apt/trusted.gpg --primary-keyring /etc/apt/trusted.gpg --keyring 
/etc/apt/trusted.gpg.d/ubuntu-mate-dev-ppa.gpg --keyring 
/etc/apt/trusted.gpg.d/ubuntu-mate-dev-trusty-mate.gpg --keyserver 
ppa.launchpad.net --recv-keys 90BD7EACED8E640A

But only resulted in this.  Timeout took 1 min


      gpg: requesting key ED8E640A from hkp server ppa.launchpad.net
      gpg: keyserver timed out
      gpg: keyserver receive failed: keyserver error

In case I had the key server wrong, I also tried keyserver.launchpad.net

apt-key adv --keyserver keyserver.launchpad.net --recv-keys 90BD7EACED8E640A

resulting in:

      keyserver.launchpad.net: Host not found
      gpgkeys: HTTP fetch error 7: couldn't connect: No such file or 
directory
      gpg: no valid OpenPGP data found.
      gpg: Total number processed: 0

Any suggestions on were to go next to get the public key?

Thanks,

Greg


I find it rather odd that launchpad would time out.
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