On 10.11.2017 03:54, Snehal Shekatkar wrote:

Dear Tiago,

I am on Ubuntu 16.04 and while updating I got the following error.

Err:16 http://downloads.skewed.de/apt/xenial xenial Release.gpg   The following signatures were invalid: BADSIG 7A80C8ED4FCCBE09 Tiago de Paula Peixoto <tiago@skewed.de <mailto:tiago@skewed.de>>

Yes, the signature changed a while ago.

So as per the instructions page, I tried:

sudo apt-key adv --keyserver pgp.skewed.de <http://pgp.skewed.de> --recv-key 612DEFB798507F25

However, this returns the following:

Executing: /tmp/tmp.UgWxLPVkr2/gpg.1.sh <http://gpg.1.sh> --keyserver pgp.skewed.de <http://pgp.skewed.de> --recv-key 612DEFB798507F25 gpg: requesting key 98507F25 from hkp server pgp.skewed.de <http://pgp.skewed.de> gpgkeys: key 612DEFB798507F25 can't be retrieved gpg: no valid OpenPGP data found. gpg: Total number processed: 0 gpg: keyserver communications error: keyserver helper general error gpg: keyserver communications error: unknown pubkey algorithm gpg: keyserver receive failed: unknown pubkey algorithm

What can be done?

I can't reproduce this. I tried the same thing on different servers, and it works fine... -- Tiago de Paula Peixoto <tiago@skewed.de>