I'd like to preface this with the fact that I have little experience with PGP/GPG.
$ gpg --version gpg (GnuPG) 2.2.20 libgcrypt 1.8.5 Copyright (C) 2020 Free Software Foundation, Inc. License GPLv3+: GNU GPL version 3 or later <https://gnu.org/licenses/gpl.html> This is free software: you are free to change and redistribute it. There is NO WARRANTY, to the extent permitted by law. Home: /home/operator.name/.gnupg Supported algorithms: Pubkey: RSA, ELG, DSA, ECDH, ECDSA, EDDSA Cipher: IDEA, 3DES, CAST5, BLOWFISH, AES, AES192, AES256, TWOFISH, CAMELLIA128, CAMELLIA192, CAMELLIA256 Hash: SHA1, RIPEMD160, SHA256, SHA384, SHA512, SHA224 Compression: Uncompressed, ZIP, ZLIB, BZIP2 $ wget https://sv.gnu.org/people/viewgpg.php?user_id=15145 -qO - | gpg --import - gpg: key 090B11993D9AEBB5: 129 signatures not checked due to missing keys gpg: key 090B11993D9AEBB5: "Ludovic Courtès <l...@gnu.org>" not changed gpg: key 090B11993D9AEBB5: "Ludovic Courtès <l...@gnu.org>" not changed gpg: Total number processed: 2 gpg: unchanged: 2 $ sudo ./guix-install.sh ░░░ ░░░ ░░▒▒░░░░░░░░░ ░░░░░░░░░▒▒░░ ░░▒▒▒▒▒░░░░░░░ ░░░░░░░▒▒▒▒▒░ ░▒▒▒░░▒▒▒▒▒ ░░░░░░░▒▒░ ░▒▒▒▒░ ░░░░░░ ▒▒▒▒▒ ░░░░░░ ▒▒▒▒▒ ░░░░░ ░▒▒▒▒▒ ░░░░░ ▒▒▒▒▒ ░░░░░ ▒▒▒▒▒ ░░░░░ ░▒▒▒▒▒░░░░░ ▒▒▒▒▒▒░░░ ▒▒▒▒▒▒░ _____ _ _ _ _ _____ _ / ____| \ | | | | | / ____| (_) | | __| \| | | | | | | __ _ _ ___ __ | | |_ | . ' | | | | | | |_ | | | | \ \/ / | |__| | |\ | |__| | | |__| | |_| | |> < \_____|_| \_|\____/ \_____|\__,_|_/_/\_\ This script installs GNU Guix on your system https://www.gnu.org/software/guix/ Press return to continue... [1587683635.547]: Starting installation (Fri 24 Apr 00:13:55 BST 2020) [1587683635.567]: [ PASS ] verification of required commands completed [1587683635.575]: [ FAIL ] Missing OpenPGP public key. Fetch it with this command: wget https://sv.gnu.org/people/viewgpg.php?user_id=15145 -qO - | gpg --import - $ wget https://sv.gnu.org/people/viewgpg.php?user_id=15145 -qO - | gpg --import - gpg: key 090B11993D9AEBB5: 129 signatures not checked due to missing keys gpg: key 090B11993D9AEBB5: "Ludovic Courtès <l...@gnu.org>" not changed gpg: key 090B11993D9AEBB5: "Ludovic Courtès <l...@gnu.org>" not changed gpg: Total number processed: 2 gpg: unchanged: 2 $ sudo ./guix-install.sh ░░░ ░░░ ░░▒▒░░░░░░░░░ ░░░░░░░░░▒▒░░ ░░▒▒▒▒▒░░░░░░░ ░░░░░░░▒▒▒▒▒░ ░▒▒▒░░▒▒▒▒▒ ░░░░░░░▒▒░ ░▒▒▒▒░ ░░░░░░ ▒▒▒▒▒ ░░░░░░ ▒▒▒▒▒ ░░░░░ ░▒▒▒▒▒ ░░░░░ ▒▒▒▒▒ ░░░░░ ▒▒▒▒▒ ░░░░░ ░▒▒▒▒▒░░░░░ ▒▒▒▒▒▒░░░ ▒▒▒▒▒▒░ _____ _ _ _ _ _____ _ / ____| \ | | | | | / ____| (_) | | __| \| | | | | | | __ _ _ ___ __ | | |_ | . ' | | | | | | |_ | | | | \ \/ / | |__| | |\ | |__| | | |__| | |_| | |> < \_____|_| \_|\____/ \_____|\__,_|_/_/\_\ This script installs GNU Guix on your system https://www.gnu.org/software/guix/ Press return to continue... [1587683635.547]: Starting installation (Fri 24 Apr 00:13:55 BST 2020) [1587683635.567]: [ PASS ] verification of required commands completed [1587683635.575]: [ FAIL ] Missing OpenPGP public key. Fetch it with this command: wget https://sv.gnu.org/people/viewgpg.php?user_id=15145 -qO - | gpg --import -