Error while updating

graph-tool
1

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(a)skewed.de>

So as per the instructions page, I tried:

sudo apt-key adv --keyserver pgp.skewed.de --recv-key 612DEFB798507F25

However, this returns the following:

Executing: /tmp/tmp.UgWxLPVkr2/gpg.1.sh --keyserver
pgp.skewed.de
--recv-key
612DEFB798507F25
gpg: requesting key 98507F25 from hkp server 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?

Thank you

attachment.html (1.44 KB)

2

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(a)skewed.de <mailto:tiago(a)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...