Conflicting values set for option Signed-By regarding source https://packages.vectorized.io/nzc4ZYQK3WRGd9sy/redpanda/deb/ubuntu/ focal: /usr/share/keyrings/redpanda-redpanda-archive-keyring.gpg !=

[ghost]

When I tried to install Redpanda on my Ubuntu 20.04 machine, it was failed with:

➜  /tmp curl -1sLf 'https://packages.vectorized.io/nzc4ZYQK3WRGd9sy/redpanda/cfg/setup/bash.deb.sh' | sudo -E bash 
Executing the  setup script for the 'redpanda/redpanda' repository ...

   OK: Checking for required executable 'curl' ...
   OK: Checking for required executable 'apt-get' ...
   OK: Detecting your OS distribution and release using system methods ...
 ^^^^: ... Detected/provided for your OS/distribution, version and architecture:
 >>>>:
 >>>>: ... distro=ubuntu  version=20.04  codename=focal  arch=x86_64  
 >>>>:
   OK: Checking for apt dependency 'apt-transport-https' ...
   OK: Checking for apt dependency 'ca-certificates' ...
   OK: Checking for apt dependency 'gnupg' ...
  RUN: Importing 'redpanda/redpanda' repository GPG key ...gpg: WARNING: unsafe ownership on homedir '/home/tim/.gnupg'
   OK: Checking for apt signed-by key support ...
   OK: Importing 'redpanda/redpanda' repository GPG key ...
   OK: Checking if upstream install config is OK ...
   OK: Installing 'redpanda/redpanda' repository via apt ...
 NOPE: Updating apt repository metadata cache ...
Failed to update via apt-get update
E: Conflicting values set for option Signed-By regarding source https://packages.vectorized.io/nzc4ZYQK3WRGd9sy/redpanda/deb/ubuntu/ focal: /usr/share/keyrings/redpanda-redpanda-archive-keyring.gpg != 
E: The list of sources could not be read.
 ^^^^: ... Failed to update via apt-get update - Context above.
 !!!!: Oh no, your setup failed! :-( ... But we might be able to help. :-)
 !!!!: 
 !!!!: You can contact Redpanda for further assistance.
 !!!!: 
 !!!!: URL: https://redpanda.com
 !!!!: 

The remedy was to remove the following files and try again:

 sudo rm /etc/apt/sources.list.d/redpanda-redpanda.list
 sudo rm -Rf /usr/share/keyrings/redpanda-redpanda-archive-keyring.gpg 

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