April 29, 2011
Ubuntu public key is not available
![Ubuntu public key is not available](https://toto-share.com/wp-content/themes/ribbon-lite/images/nothumb-featured.png)
I use Ubuntu 10.04 as my system operation. When use command apt-get update in terminal, I get error message : The following signatures couldn’t be verified because the public key is not available: NO_PUBKEY 40976EAF437D05B5 If we get error message Ubuntu public key is not available, It means that my APT doesn’t have needed the