更新时出现GPG错误
我在更新时遇到了这个错误。我读了关于这个问题的问题和答案，但重点是签名 。 它不会返回签名密钥！
Get:1 http://archive.canonical.com lucid Release.gpg [198B] Ign http://archive.canonical.com/ lucid/partner Translation-en_US ... ... ... Get:24 http://archive.ubuntu.com lucid-security/main Packages [380kB] Get:25 http://archive.ubuntu.com lucid-security/restricted Packages [14B] Get:26 http://archive.ubuntu.com lucid-security/multiverse Packages [4,556B] Get:27 http://archive.ubuntu.com lucid-security/main Sources [118kB] Get:28 http://archive.ubuntu.com lucid-security/restricted Sources [14B] Get:29 http://archive.ubuntu.com lucid-security/universe Packages [125kB] Get:30 http://archive.ubuntu.com lucid-security/universe Sources [34.5kB] Fetched 12.8MB in 10min 33s (20.3kB/s) Reading package lists... Done W: GPG error: http://archive.canonical.com lucid Release: Unknown error executing gpgv W: GPG error: http://archive.ubuntu.com lucid Release: Unknown error executing gpgv W: GPG error: http://archive.ubuntu.com lucid-updates Release: Unknown error executing gpgv W: GPG error: http://archive.ubuntu.com lucid-security Release: Unknown error executing gpgv 最后，修好了。
我在/ lib中搜索并找到了另一个“libreadline.so.6”并将其替换并修复了问题。
感谢您的关注。
尝试sudo apt-get clean然后再次运行update命令。
嗯…同样的问题在这里（ubuntu 12.04,64位）。 这对我有用：
sudo mv /usr/local/lib/libreadline.so.6 /usr/local/lib/libreadline_problem.so.6 sudo mv /usr/local/lib/libreadline.so.6.2 /usr/local/lib/libreadline_problem.so.6.2 sudo ln -s /lib/x86_64-linux-gnu/libreadline.so.6 /usr/local/lib/libreadline.so.6 sudo ln -s /lib/x86_64-linux-gnu/libreadline.so.6.2 /usr/local/lib/libreadline.so.6.2 sudo apt-get update
🙂
请运行以下命令并手动添加密钥：
gpg --keyserver hkp://keyserver.ubuntu.com:80 --recv KEYNAME