I solved this issue using help from: https://help.ubuntu.com/community/SSH/OpenSSH/Keys
Encrypted Home Directory was my issue. and it was file permission issue. Also I needed to run "gpg-agent --daemon --enable-ssh-support" explicitly. Though it was part of yubikey Ubuntu script from here https://developers.yubico.com/PGP/SSH_authentication/ I just ran script again and again and fixed file permissions. Somehow it started working and allowed me to login. Using Ubuntu 16.04.02. Yubikey 4 nano -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1569019 Title: rsa ssh login fails with "sign_and_send_pubkey: signing failed: agent refused operation" error To manage notifications about this bug go to: https://bugs.launchpad.net/serverguide/+bug/1569019/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
