当我尝试安装或更新我得到的任何软件包：
Untrusted packages could compromise your system's security. You should only proceed with the installation if you are certain that this is what you want to do.
我强烈怀疑这是与我得到更新的错误有关：
$ sudo aptitude update Get: 1 http://ftp.us.debian.org wheezy InRelease [208 kB] Get: 2 http://debian.lcs.mit.edu wheezy InRelease [208 kB] Ign http://ftp.us.debian.org wheezy InRelease Hit http://ftp.us.debian.org wheezy/main amd64 Packages/DiffIndex Hit http://ftp.us.debian.org wheezy/contrib amd64 Packages/DiffIndex Hit http://ftp.us.debian.org wheezy/non-free amd64 Packages/DiffIndex Hit http://ftp.us.debian.org wheezy/contrib Translation-en Hit http://ftp.us.debian.org wheezy/main Translation-en Hit http://ftp.us.debian.org wheezy/non-free Translation-en Get: 3 http://debian.lcs.mit.edu wheezy-updates InRelease [116 kB] Ign http://debian.lcs.mit.edu wheezy InRelease Ign http://debian.lcs.mit.edu wheezy-updates InRelease Hit http://debian.lcs.mit.edu wheezy/main Sources/DiffIndex Hit http://debian.lcs.mit.edu wheezy/main amd64 Packages/DiffIndex Hit http://debian.lcs.mit.edu wheezy/main Translation-en Ign http://ftp.us.debian.org wheezy/contrib Translation-en_US Ign http://debian.lcs.mit.edu wheezy-updates/main Sources/DiffIndex Ign http://debian.lcs.mit.edu wheezy-updates/main amd64 Packages/DiffIndex Ign http://ftp.us.debian.org wheezy/main Translation-en_US Ign http://ftp.us.debian.org wheezy/non-free Translation-en_US Hit http://debian.lcs.mit.edu wheezy-updates/main Sources Hit http://debian.lcs.mit.edu wheezy-updates/main amd64 Packages Ign http://debian.lcs.mit.edu wheezy/main Translation-en_US Ign http://debian.lcs.mit.edu wheezy-updates/main Translation-en_US Ign http://debian.lcs.mit.edu wheezy-updates/main Translation-en Fetched 531 kB in 1s (304 kB/s) W: GPG error: http://ftp.us.debian.org wheezy InRelease: Unknown error executing gpgv W: GPG error: http://debian.lcs.mit.edu wheezy InRelease: Unknown error executing gpgv W: GPG error: http://debian.lcs.mit.edu wheezy-updates InRelease: Unknown error executing gpgv
我已经尝试重新安装钥匙圈： sudo aptitude reinstall debian-archive-keyring （令人惊讶的是不会导致警告）。
试试这个请：
打开一个terminal并运行以下命令：
sudo apt-get clean sudo rm -rf /var/lib/apt/lists/* sudo apt-get clean sudo apt-get update
读完APZ的答案 ，但想要使用aptitude我成功执行以下命令：
# clean the obsolete cache sudo aptitude clean # update the package information sudo aptitude update # install or upgrade the packages sudo aptitude install <list of packages to upgrade/install>
该错误可能与过时的caching内容有关，但是我得到的错误信息有点不同：
警告：以下软件包的不可信版本将被安装！
你似乎被Debian bug ＃657561打了。 您可以尝试移动有问题的/ var / lib / apt / lists / * InRelease文件并重新运行apt-get更新。