Linux Mint 17.2 64 bit kurduktan sonra, sudo apt-get update komutu aşağıdaki hata ile sonlanıyordu: W: An error occurred during the signature verification. The repository is not updated and the previous index files will be used. GPG error: http://archive.ubuntu.com trusty Release: The following signatures were invalid: BADSIG 16126D3A3E5C1192 Ubuntu Extras Archive Automatic Signing Key <ftpmaster@ubuntu.com> […]