解决ubuntu下error occurred during the signature verification

解决ubuntu下error occurred during the signature verification

 

在ubuntu 下想安装一个软件（我使用的是163的源），却被告知 file size mismatch.

 

于是更新了package list: 

sudo apt-get update

...

 

...

 

W: A error occurred during the signature verification. The repository is not updated and the previous index files will be used.GPG error: http://security.ubuntu.com lucid-security Release: The following signatures were invalid: BADSIG 40976EAF437D05B5 Ubuntu Archive Automatic Signing Key <ftpmaster@ubuntu.com>

 

W: A error occurred during the signature verification. The repository is not updated and the previous index files will be used.GPG error: http://us.archive.ubuntu.com lucid Release: The following signatures were invalid: BADSIG 40976EAF437D05B5 Ubuntu Archive Automatic Signing Key <ftpmaster@ubuntu.com>

 

W: A error occurred during the signature verification. The repository is not updated and the previous index files will be used.GPG error: http://us.archive.ubuntu.com lucid-updates Release: The following signatures were invalid: BADSIG 40976EAF437D05B5 Ubuntu Archive Automatic Signing Key <ftpmaster@ubuntu.com>

 

即使执行：

 

sudo apt-get clean

 

sudo apt-get update

 

还是会有相同的错误。

 

有了解决方案：

 

sudo apt-get clean 

 

cd /var/lib/apt 

 

sudo mv lists lists.old 

 

sudo mkdir -p lists/partial 

 

sudo apt-get clean 

 

sudo apt-get update