Err http://archive.canonical.com natty InRelease
Err http://security.ubuntu.com oneiric-security InRelease
Err http://extras.ubuntu.com natty InRelease
Err http://security.ubuntu.com oneiric-security Release.gpg
Temporary failure resolving ‘security.ubuntu.com’
Err http://archive.canonical.com natty Release.gpg
Temporary failure resolving ‘archive.canonical.com’
Err http://extras.ubuntu.com natty Release.gpg
Temporary failure resolving ‘extras.ubuntu.com’
Err http://gb.archive.ubuntu.com oneiric InRelease
Err http://gb.archive.ubuntu.com oneiric-updates InRelease
Err http://gb.archive.ubuntu.com natty-backports InRelease
Err http://gb.archive.ubuntu.com oneiric Release.gpg
Temporary failure resolving ‘gb.archive.ubuntu.com’
Err http://gb.archive.ubuntu.com oneiric-updates Release.gpg
Temporary failure resolving ‘gb.archive.ubuntu.com’
Err http://gb.archive.ubuntu.com natty-backports Release.gpg
Temporary failure resolving ‘gb.archive.ubuntu.com’
Reading package lists... Done
W: Failed to fetch http://gb.archive.ubuntu.com/ubuntu/dists/oneiric/InRelease
W: Failed to fetch http://gb.archive.ubuntu.com/ubuntu/dists/oneiric-updates/InRelease
W: Failed to fetch http://gb.archive.ubuntu.com/ubuntu/dists/natty-backports/InRelease
W: Failed to fetch http://security.ubuntu.com/ubuntu/dists/oneiric-security/InRelease
W: Failed to fetch http://archive.canonical.com/ubuntu/dists/natty/InRelease
W: Failed to fetch http://extras.ubuntu.com/ubuntu/dists/natty/InRelease
W: Failed to fetch http://archive.canonical.com/ubuntu/dists/natty/Release.gpg Temporary failure resolving ‘archive.canonical.com’
W: Failed to fetch http://security.ubuntu.com/ubuntu/dists/oneiric-security/Release.gpg Temporary failure resolving ‘security.ubuntu.com’
W: Failed to fetch http://extras.ubuntu.com/ubuntu/dists/natty/Release.gpg Temporary failure resolving ‘extras.ubuntu.com’
W: Failed to fetch http://gb.archive.ubuntu.com/ubuntu/dists/oneiric/Release.gpg Temporary failure resolving ‘gb.archive.ubuntu.com’
W: Failed to fetch http://gb.archive.ubuntu.com/ubuntu/dists/oneiric-updates/Release.gpg Temporary failure resolving ‘gb.archive.ubuntu.com’
W: Failed to fetch http://gb.archive.ubuntu.com/ubuntu/dists/natty-backports/Release.gpg Temporary failure resolving ‘gb.archive.ubuntu.com’
W: Some index files failed to download. They have been ignored, or old ones used instead.
这就是我尝试跑步时看到的sudo apt-get update。昨天我对实例进行了更新，现在正在遇到此情况。
您的问题分为两部分：
此问题很可能是：
让我们看一下可能的DNS解决问题。
首先，将已知的DNS服务器临时添加到系统中。
echo "nameserver 8.8.8.8" | sudo tee /etc/resolv.conf > /dev/null
然后运行sudo apt-get update。
如果这可以解决您的临时解决消息，则请等待24小时以查看您的ISP是否为您解决了该问题（或者只是与您的ISP联系）-或者您可以将DNS服务器永久添加到系统中：
echo "nameserver 8.8.8.8" | sudo tee /etc/resolvconf/resolv.conf.d/base > /dev/null
8.8.8.8 是Google自己的DNS服务器。
您可以使用的另一个示例DNS服务器是OpenDNS-例如：
echo "nameserver 208.67.222.222" | sudo tee /etc/resolvconf/resolv.conf.d/base > /dev/null
除了临时解决的问题-您还需要解决一些软件包管理问题-我假设您最近尝试从一个Ubuntu版本升级到下一个推荐版本-您的情况是从Natty（11.04）升级到奥尼（11.10）
打开一个终端并输入
sudo nano /etc/apt/sources.list
在列表中查找与您的预期oneiric发行版本名称不同的行（对于您的情况），您已升级到，但又有一个发行版本名称natty
例如，寻找看起来像这样的线 deb http:/archive.canonical.com/ natty backports
#在行的开头添加一个以将其注释掉-例如
#deb http:/archive.canonical.com/ natty backports
保存并重新运行：
sudo apt-get update && sudo apt-get upgrade
您不应再有任何发行版命名错误。
在写这篇的时候，可能共同发布的名称包括lucid，maverick，natty，oneiric，precise，quantal，raring，saucy，trusty，utopic和vivid。
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我来说两句