GPG签名无效
我遇到以下问题（试图删除超链接，我从地址中删除了一个“/”）：
W: GPG error: http://archive.ubuntu.com oneiric Release: The following signatures were invalid: BADSIG 40976EAF437D05B5 Ubuntu Archive Automatic Signing Key W: GPG error: http://ppa.launchpad.net oneiric Release: The following signatures were invalid: BADSIG B725097B3ACC3965 Launchpad lffl W: GPG error: http://ppa.launchpad.net oneiric Release: The following signatures were invalid: BADSIG 4874D3686E80C6B7 Launchpad PPA for Banshee Team W: GPG error: http://archive.getdeb.net jaunty-getdeb Release: The following signatures were invalid: BADSIG A8A515F046D7E7CF GetDeb Archive Automatic Signing Key W: GPG error: http://badgerports.org lucid Release: The following signatures were invalid: BADSIG C90F9CB90E1FAD0C Jo Shields W: GPG error: http://ppa.launchpad.net oneiric Release: The following signatures were invalid: BADSIG 976B5901365C5CA1 Launchpad PPA for transmissionbt W: Failed to fetch http://ppa.launchpad.net/dlecan/openjdk/ubuntu/dists/oneiric/main/source/Sources 404 Not Found W: Failed to fetch http://ppa.launchpad.net/dlecan/openjdk/ubuntu/dists/oneiric/main/binary-i386/Packages 404 Not Found W: Failed to fetch http://ppa.launchpad.net/sevenmachines/flash/ubuntu/dists/oneiric/main/binary-i386/Packages 404 Not Found W: Failed to fetch http://ppa.launchpad.net/sun-java-community-team/sun-java6/ubuntu/dists/oneiric/main/source/Sources 404 Not Found W: Failed to fetch http://ppa.launchpad.net/sun-java-community-team/sun-java6/ubuntu/dists/oneiric/main/binary-i386/Packages 404 Not Found 我已经尝试了以下解决方案，这些解决方案在一个名为“以下签名无效”的封闭案例中：
First of all try sudo apt-get clean sudo apt-get update && sudo apt-get upgrade Some ISPs cache the packages and errors like these are reported then. If the above commands don't work, try sudo apt-get update -o Acquire::http::No-Cache=True and again sudo apt-get update && sudo apt-get upgrade If it still doesn't work, sudo apt-get update -o Acquire::BrokenProxy=true sudo apt-get update && sudo apt-get upgrade
试试这个：
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
您安装了一组“有趣”的PPA：
可以通过以下问答解决一个人报告的BADSIG ：
解决apt-get BADSIG GPG错误的最简单方法是什么？
404错误基本上意味着PPA不再具有oneiric存储库。 您应该取消来自Software Sources的那些。
jaunty-getdeb和badgerports.org存储库对oneiric无效。 再次，取消来自Software Sources的那些。
我得到了“Y PPA经理”。 此软件中有一个“高级”按钮，可以找到丢失的按键。 为我工作。
我遇到过同样的问题。 我只是取消选中“独立提供的第三方软件开发人员”和“独立（源代码） – 由第三方软件开发人员提供”复选框下的软件源（点击主面板上的齿轮图标，然后点击软件更新程序。左下角是设置按钮，它将引导您进入软件源对话框。当您到达此处时，只需转到“其他软件”选项卡）