sapath@sapath-SVE11115EHB:~$ sudo apt-key adv --keyserver keyserver.ubuntu.com --recv-keys 437D05B5 3E5C1192
Executing: gpg --ignore-time-conflict --no-options --no-default-keyring --homedir /tmp/tmp.T3IYpQyjbU --no-auto-check-trustdb --trust-model always --keyring /etc/apt/trusted.gpg --primary-keyring /etc/apt/trusted.gpg --keyserver keyserver.ubuntu.com --recv-keys 437D05B5 3E5C1192
gpg: requesting key 437D05B5 from hkp server keyserver.ubuntu.com
gpg: requesting key 3E5C1192 from hkp server keyserver.ubuntu.com
gpg: key 437D05B5: "Ubuntu Archive Automatic Signing Key <[email protected]>" 27 new signatures
gpg: key 3E5C1192: "Ubuntu Extras Archive Automatic Signing Key <[email protected]>" 3 new signatures
gpg: Total number processed: 2
gpg:         new signatures: 30