Hi, I'm trying to install pg4admin desktop by following instructions on: https://www.pgadmin.org/download/pgadmin-4-apt/
I'm on a Linux Mint 20.1 ulyssa system, equivalent ubuntu codename is "focal". So, I have to put "focal" for release name. Added public key: sudo curl https://www.pgadmin.org/static/packages_pgadmin_org.pub | sudo apt-key add Verified that its there by apt-key list: pub rsa4096 2018-08-14 [SC] E869 7E2E EF76 C02D 3A63 3277 8881 B2A8 2109 76F2 uid [ unknown] Package Manager (Package Signing Key) < packa...@pgadmin.org> sub rsa4096 2018-08-14 [E] Added the repository (putting "focal" release name in place of $(lsb_release -cs): sudo sh -c 'echo "deb https://ftp.postgresql.org/pub/pgadmin/pgadmin4/apt/focal pgadmin4 main" > /etc/apt/sources.list.d/pgadmin4.list && apt update' But this is what I get: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 46B5721DBBD2996A Err:10 https://ftp.postgresql.org/pub/pgadmin/pgadmin4/apt/focal pgadmin4 Release Certificate verification failed: The certificate is NOT trusted. The certificate chain uses expired certificate. Could not handshake: Error in the certificate verification. [IP: 87.238.57.227 443] I'm going to https://ftp.postgresql.org/pub/pgadmin/pgadmin4/apt/focal/dists/pgadmin4/main/binary-amd64/ and just downloading the .debs and doing install for now. But guessing somebody from the maintainers might need to renew the certificate or something? -- Cheers, Nikhil VJ https://nikhilvj.co.in