I installed all of security tools provided from the ubuntu.com and some others listed in other websites. Then i added backtrack repositories to update them. And used update manager to update the tools. Since then, I am getting
Untrusted Package errors every time, every where, whether is update manager or software center. Unless I do it from the
I read in few posts, that they are caused by keys, not being authenticated properly so i needed to update them. I tried that too, but none of them are working.
Help me fix this issue.
I have tried solution suggested in this question. It didn't change anything
sudo apt-key adv --keyserver keyserver.ubuntu.com --recv-keys 40976EAF437D05B5 Executing: gpg --ignore-time-conflict --no-options --no-default-keyring --secret-keyring /tmp/tmp.tSQJ1K1D2g --trustdb-name /etc/apt/trustdb.gpg --keyring /etc/apt/trusted.gpg --primary-keyring /etc/apt/trusted.gpg --keyserver keyserver.ubuntu.com --recv-keys 40976EAF437D05B5 gpg: requesting key 437D05B5 from hkp server keyserver.ubuntu.com gpg: key 437D05B5: "Ubuntu Archive Automatic Signing Key <firstname.lastname@example.org>" not changed gpg: Total number processed: 1 gpg: unchanged: 1