执行此命令之前一切都很好sudo apt-get autoremove openjdk-7-jre。 删除此 openjdk-7-jre 后，当我尝试时，sudo apt-get update出现以下错误：
0% [Working]
Err http://ppa.launchpad.net precise Release.gpg
Something wicked happened resolving 'ppa.launchpad.net:http' (-5 - No address associated with hostname)
0% [Connecting to security.ubuntu.com] [Connecting to extras.ubuntu.com]
A
Err http://extras.ubuntu.com precise Release.gpg
Something wicked happened resolving 'extras.ubuntu.com:http' (-5 - No address associated with hostname)
0% [Connecting to security.ubuntu.com] [Connecting to ppa.launchpad.net]
Err http://security.ubuntu.com precise-security Release.gpg
Something wicked happened resolving 'security.ubuntu.com:http' (-5 - No address associated with hostname)
0% [Connecting to ppa.launchpad.net]
Ign http://ppa.launchpad.net precise Release
4% [Connecting to extras.ubuntu.com]
Ign http://ppa.launchpad.net precise/main Sources/DiffIndex
8% [Connecting to security.ubuntu.com] [Connecting to extras.ubuntu.com]
Ign http://security.ubuntu.com precise-security Release
6% [Connecting to extras.ubuntu.com]
Ign http://extras.ubuntu.com precise Release
7% [Connecting to ppa.launchpad.net]
Ign http://security.ubuntu.com precise-security/main Sources/DiffIndex
9% [Connecting to extras.ubuntu.com] [Connecting to ppa.launchpad.net]
Ign http://ppa.launchpad.net precise/main i386 Packages/DiffIndex
10% [Connecting to extras.ubuntu.com] [Connecting to ppa.launchpad.net]
Ign http://ppa.launchpad.net precise/main TranslationIndex
11% [Connecting to security.ubuntu.com] [Connecting to extras.ubuntu.com] [Conn
Ign http://security.ubuntu.com precise-security/restricted Sources/DiffIndex
12% [Connecting to security.ubuntu.com] [Connecting to extras.ubuntu.com] [Conn
Ign http://security.ubuntu.com precise-security/universe Sources/DiffIndex
13% [Connecting to security.ubuntu.com] [Connecting to extras.ubuntu.com] [Conn
Ign http://security.ubuntu.com precise-security/multiverse Sources/DiffIndex
14% [Connecting to security.ubuntu.com] [Connecting to extras.ubuntu.com] [Conn
Ign http://extras.ubuntu.com precise/main Sources/DiffIndex
15% [Connecting to security.ubuntu.com] [Connecting to ppa.launchpad.net]
Ign http://security.ubuntu.com precise-security/main i386 Packages/DiffIndex
16% [Connecting to security.ubuntu.com] [Connecting to extras.ubuntu.com] [Conn
Ign http://extras.ubuntu.com precise/main i386 Packages/DiffIndex
17% [Connecting to security.ubuntu.com] [Connecting to extras.ubuntu.com] [Conn
Ign http://security.ubuntu.com precise-security/restricted i386 Packages/DiffIndex
18% [Connecting to security.ubuntu.com] [Connecting to extras.ubuntu.com] [Conn
Ign http://extras.ubuntu.com precise/main TranslationIndex
18% [Connecting to security.ubuntu.com] [Connecting to extras.ubuntu.com] [Conn
Ign http://security.ubuntu.com precise-security/universe i386 Packages/DiffIndex
19% [Connecting to security.ubuntu.com] [Connecting to extras.ubuntu.com] [Conn
Ign http://security.ubuntu.com precise-security/multiverse i386 Packages/DiffIndex
20% [Connecting to security.ubuntu.com] [Connecting to extras.ubuntu.com] [Conn
Ign http://security.ubuntu.com precise-security/main TranslationIndex
20% [Connecting to in.archive.ubuntu.com] [Connecting to security.ubuntu.com] [
Ign http://security.ubuntu.com precise-security/multiverse TranslationIndex
20% [Connecting to in.archive.ubuntu.com] [Connecting to security.ubuntu.com] [
Ign http://security.ubuntu.com precise-security/restricted TranslationIndex
20% [Connecting to in.archive.ubuntu.com] [Connecting to security.ubuntu.com] [
Ign http://security.ubuntu.com precise-security/universe TranslationIndex
21% [Connecting to in.archive.ubuntu.com] [Connecting to security.ubuntu.com] [
Err http://in.archive.ubuntu.com precise Release.gpg
Something wicked happened resolving 'in.archive.ubuntu.com:http' (-5 - No address associated with hostname)
20% [Connecting to in.archive.ubuntu.com] [Connecting to security.ubuntu.com] [
Err http://in.archive.ubuntu.com precise-updates Release.gpg
Something wicked happened resolving 'in.archive.ubuntu.com:http' (-5 - No address associated with hostname)
20% [Connecting to in.archive.ubuntu.com] [Connecting to security.ubuntu.com] [
Err http://in.archive.ubuntu.com precise-backports Release.gpg
Something wicked happened resolving 'in.archive.ubuntu.com:http' (-5 - No address associated with hostname)
19% [Connecting to in.archive.ubuntu.com] [Connecting to security.ubuntu.com] [
Ign http://in.archive.ubuntu.com precise Release
17% [Connecting to in.archive.ubuntu.com] [Connecting to security.ubuntu.com] [
Ign http://in.archive.ubuntu.com precise-updates Release
15% [Connecting to in.archive.ubuntu.com] [Connecting to security.ubuntu.com] [
Err http://ppa.launchpad.net precise/main Sources
Something wicked happened resolving 'ppa.launchpad.net:http' (-5 - No address associated with hostname)
15% [Connecting to in.archive.ubuntu.com] [Connecting to security.ubuntu.com] [
Ign http://in.archive.ubuntu.com precise-backports Release
13% [Connecting to in.archive.ubuntu.com] [Connecting to security.ubuntu.com] [
Err http://extras.ubuntu.com precise/main Sources
Something wicked happened resolving 'extras.ubuntu.com:http' (-5 - No address associated with hostname)
Err http://ppa.launchpad.net precise/main i386 Packages
Something wicked happened resolving 'ppa.launchpad.net:http' (-5 - No address associated with hostname)
Err http://ppa.launchpad.net precise/main Translation-en_IN
Something wicked happened resolving 'ppa.launchpad.net:http' (-5 - No address associated with hostname)
Err http://ppa.launchpad.net precise/main Translation-en
Something wicked happened resolving 'ppa.launchpad.net:http' (-5 - No address associated with hostname)
13% [Connecting to in.archive.ubuntu.com] [Connecting to security.ubuntu.com] [
Ign http://in.archive.ubuntu.com precise/main Sources/DiffIndex
Ign http://in.archive.ubuntu.com precise/restricted Sources/DiffIndex
Err http://extras.ubuntu.com precise/main i386 Packages
Something wicked happened resolving 'extras.ubuntu.com:http' (-5 - No address associated with hostname)
14% [Connecting to in.archive.ubuntu.com] [Connecting to security.ubuntu.com]
Ign http://in.archive.ubuntu.com precise/universe Sources/DiffIndex
Err http://extras.ubuntu.com precise/main Translation-en_IN
Something wicked happened resolving 'extras.ubuntu.com:http' (-5 - No address associated with hostname)
Err http://extras.ubuntu.com precise/main Translation-en
Something wicked happened resolving 'extras.ubuntu.com:http' (-5 - No address associated with hostname)
15% [Connecting to in.archive.ubuntu.com] [Connecting to security.ubuntu.com]
Ign http://in.archive.ubuntu.com precise/multiverse Sources/DiffIndex
15% [Connecting to in.archive.ubuntu.com] [Connecting to security.ubuntu.com]
Ign http://in.archive.ubuntu.com precise/main i386 Packages/DiffIndex
15% [Connecting to in.archive.ubuntu.com] [Connecting to security.ubuntu.com]
Ign http://in.archive.ubuntu.com precise/restricted i386 Packages/DiffIndex
16% [Connecting to in.archive.ubuntu.com] [Connecting to security.ubuntu.com]
Ign http://in.archive.ubuntu.com precise/universe i386 Packages/DiffIndex
16% [Connecting to in.archive.ubuntu.com] [Connecting to security.ubuntu.com]
Ign http://in.archive.ubuntu.com precise/multiverse i386 Packages/DiffIndex
16% [Connecting to in.archive.ubuntu.com] [Connecting to security.ubuntu.com]
Ign http://in.archive.ubuntu.com precise/main TranslationIndex
16% [Connecting to in.archive.ubuntu.com] [Connecting to security.ubuntu.com]
Ign http://in.archive.ubuntu.com precise/multiverse TranslationIndex
17% [Connecting to in.archive.ubuntu.com] [Connecting to security.ubuntu.com]
Ign http://in.archive.ubuntu.com precise/restricted TranslationIndex
17% [Connecting to in.archive.ubuntu.com] [Connecting to security.ubuntu.com]
Ign http://in.archive.ubuntu.com precise/universe TranslationIndex
17% [Connecting to in.archive.ubuntu.com] [Connecting to security.ubuntu.com]
Ign http://in.archive.ubuntu.com precise-updates/main Sources/DiffIndex
17% [Connecting to in.archive.ubuntu.com] [Connecting to security.ubuntu.com]
Ign http://in.archive.ubuntu.com precise-updates/restricted Sources/DiffIndex
18% [Connecting to in.archive.ubuntu.com] [Connecting to security.ubuntu.com]
Ign http://in.archive.ubuntu.com precise-updates/universe Sources/DiffIndex
18% [Connecting to security.ubuntu.com]
Ign http://in.archive.ubuntu.com precise-updates/multiverse Sources/DiffIndex
18% [Connecting to security.ubuntu.com]
Ign http://in.archive.ubuntu.com precise-updates/main i386 Packages/DiffIndex
18% [Connecting to security.ubuntu.com]
Ign http://in.archive.ubuntu.com precise-updates/restricted i386 Packages/DiffIndex
19% [Connecting to security.ubuntu.com]
Ign http://in.archive.ubuntu.com precise-updates/universe i386 Packages/DiffIndex
19% [Connecting to security.ubuntu.com]
Ign http://in.archive.ubuntu.com precise-updates/multiverse i386 Packages/DiffIndex
19% [Connecting to security.ubuntu.com]
Ign http://in.archive.ubuntu.com precise-updates/main TranslationIndex
19% [Connecting to security.ubuntu.com]
Ign http://in.archive.ubuntu.com precise-updates/multiverse TranslationIndex
19% [Connecting to security.ubuntu.com]
Ign http://in.archive.ubuntu.com precise-updates/restricted TranslationIndex
20% [Connecting to security.ubuntu.com]
Ign http://in.archive.ubuntu.com precise-updates/universe TranslationIndex
20% [Connecting to security.ubuntu.com]
Ign http://in.archive.ubuntu.com precise-backports/main Sources/DiffIndex
20% [Connecting to security.ubuntu.com]
Ign http://in.archive.ubuntu.com precise-backports/restricted Sources/DiffIndex
20% [Connecting to security.ubuntu.com]
Ign http://in.archive.ubuntu.com precise-backports/universe Sources/DiffIndex
20% [Connecting to security.ubuntu.com]
Ign http://in.archive.ubuntu.com precise-backports/multiverse Sources/DiffIndex
21% [Connecting to security.ubuntu.com]
Ign http://in.archive.ubuntu.com precise-backports/main i386 Packages/DiffIndex
21% [Connecting to security.ubuntu.com]
Ign http://in.archive.ubuntu.com precise-backports/restricted i386 Packages/DiffIndex
21% [Connecting to security.ubuntu.com]
Ign http://in.archive.ubuntu.com precise-backports/universe i386 Packages/DiffIndex
21% [Connecting to security.ubuntu.com]
Ign http://in.archive.ubuntu.com precise-backports/multiverse i386 Packages/DiffIndex
22% [Connecting to security.ubuntu.com]
Ign http://in.archive.ubuntu.com precise-backports/main TranslationIndex
22% [Connecting to security.ubuntu.com]
Ign http://in.archive.ubuntu.com precise-backports/multiverse TranslationIndex
22% [Connecting to security.ubuntu.com]
Ign http://in.archive.ubuntu.com precise-backports/restricted TranslationIndex
22% [Connecting to security.ubuntu.com]
Ign http://in.archive.ubuntu.com precise-backports/universe TranslationIndex
22% [Connecting to security.ubuntu.com]
Err http://security.ubuntu.com precise-security/main Sources
Something wicked happened resolving 'security.ubuntu.com:http' (-5 - No address associated with hostname)
22% [Connecting to in.archive.ubuntu.com]
Err http://security.ubuntu.com precise-security/restricted Sources
Something wicked happened resolving 'security.ubuntu.com:http' (-5 - No address associated with hostname)
22% [Connecting to in.archive.ubuntu.com]
Err http://security.ubuntu.com precise-security/universe Sources
Something wicked happened resolving 'security.ubuntu.com:http' (-5 - No address associated with hostname)
22% [Connecting to in.archive.ubuntu.com]
Err http://security.ubuntu.com precise-security/multiverse Sources
Something wicked happened resolving 'security.ubuntu.com:http' (-5 - No address associated with hostname)
22% [Connecting to in.archive.ubuntu.com]
Err http://security.ubuntu.com precise-security/main i386 Packages
Something wicked happened resolving 'security.ubuntu.com:http' (-5 - No address associated with hostname)
22% [Connecting to in.archive.ubuntu.com]
Err http://security.ubuntu.com precise-security/restricted i386 Packages
Something wicked happened resolving 'security.ubuntu.com:http' (-5 - No address associated with hostname)
22% [Connecting to in.archive.ubuntu.com]
Err http://security.ubuntu.com precise-security/universe i386 Packages
Something wicked happened resolving 'security.ubuntu.com:http' (-5 - No address associated with hostname)
22% [Connecting to in.archive.ubuntu.com]
Err http://security.ubuntu.com precise-security/multiverse i386 Packages
Something wicked happened resolving 'security.ubuntu.com:http' (-5 - No address associated with hostname)
22% [Connecting to in.archive.ubuntu.com]
Err http://security.ubuntu.com precise-security/main Translation-en_IN
Something wicked happened resolving 'security.ubuntu.com:http' (-5 - No address associated with hostname)
22% [Connecting to in.archive.ubuntu.com]
Err http://security.ubuntu.com precise-security/main Translation-en
Something wicked happened resolving 'security.ubuntu.com:http' (-5 - No address associated with hostname)
22% [Connecting to in.archive.ubuntu.com]
Err http://security.ubuntu.com precise-security/multiverse Translation-en_IN
Something wicked happened resolving 'security.ubuntu.com:http' (-5 - No address associated with hostname)
22% [Connecting to in.archive.ubuntu.com]
Err http://security.ubuntu.com precise-security/multiverse Translation-en
Something wicked happened resolving 'security.ubuntu.com:http' (-5 - No address associated with hostname)
22% [Connecting to in.archive.ubuntu.com]
Err http://security.ubuntu.com precise-security/restricted Translation-en_IN
Something wicked happened resolving 'security.ubuntu.com:http' (-5 - No address associated with hostname)
22% [Connecting to in.archive.ubuntu.com]
Err http://security.ubuntu.com precise-security/restricted Translation-en
Something wicked happened resolving 'security.ubuntu.com:http' (-5 - No address associated with hostname)
22% [Connecting to in.archive.ubuntu.com]
Err http://security.ubuntu.com precise-security/universe Translation-en_IN
Something wicked happened resolving 'security.ubuntu.com:http' (-5 - No address associated with hostname)
22% [Connecting to in.archive.ubuntu.com]
Err http://security.ubuntu.com precise-security/universe Translation-en
Something wicked happened resolving 'security.ubuntu.com:http' (-5 - No address associated with hostname)
22% [Connecting to in.archive.ubuntu.com]
Err http://in.archive.ubuntu.com precise/main Sources
Something wicked happened resolving 'in.archive.ubuntu.com:http' (-5 - No address associated with hostname)
22% [Working]
Err http://in.archive.ubuntu.com precise/restricted Sources
Something wicked happened resolving 'in.archive.ubuntu.com:http' (-5 - No address associated with hostname)
22% [Working]
Err http://in.archive.ubuntu.com precise/multiverse Sources
Something wicked happened resolving 'in.archive.ubuntu.com:http' (-5 - No address associated with hostname)
22% [Working]
Err http://in.archive.ubuntu.com precise/main i386 Packages
Something wicked happened resolving 'in.archive.ubuntu.com:http' (-5 - No address associated with hostname)
22% [Working]
Err http://in.archive.ubuntu.com precise/restricted i386 Packages
Something wicked happened resolving 'in.archive.ubuntu.com:http' (-5 - No address associated with hostname)
22% [Working]
Err http://in.archive.ubuntu.com precise/universe i386 Packages
Something wicked happened resolving 'in.archive.ubuntu.com:http' (-5 - No address associated with hostname)
22% [Working]
Err http://in.archive.ubuntu.com precise/multiverse i386 Packages
Something wicked happened resolving 'in.archive.ubuntu.com:http' (-5 - No address associated with hostname)
22% [Working]
Err http://in.archive.ubuntu.com precise/main Translation-en_IN
Something wicked happened resolving 'in.archive.ubuntu.com:http' (-5 - No address associated with hostname)
22% [Working]
Err http://in.archive.ubuntu.com precise/main Translation-en
Something wicked happened resolving 'in.archive.ubuntu.com:http' (-5 - No address associated with hostname)
22% [Working]
Err http://in.archive.ubuntu.com precise/multiverse Translation-en
Something wicked happened resolving 'in.archive.ubuntu.com:http' (-5 - No address associated with hostname)
22% [Working]
Err http://in.archive.ubuntu.com precise/restricted Translation-en_IN
Something wicked happened resolving 'in.archive.ubuntu.com:http' (-5 - No address associated with hostname)
22% [Working]
Err http://in.archive.ubuntu.com precise/restricted Translation-en
Something wicked happened resolving 'in.archive.ubuntu.com:http' (-5 - No address associated with hostname)
22% [Working]
Err http://in.archive.ubuntu.com precise-backports/universe Sources
Something wicked happened resolving 'in.archive.ubuntu.com:http' (-5 - No address associated with hostname)
22% [Working]
Err http://in.archive.ubuntu.com precise-backports/multiverse Translation-en_IN
Something wicked happened resolving 'in.archive.ubuntu.com:http' (-5 - No address associated with hostname)
22% [Working]
Err http://in.archive.ubuntu.com precise-backports/multiverse Translation-en
Something wicked happened resolving 'in.archive.ubuntu.com:http' (-5 - No address associated with hostname)
W: Failed to fetch http://ppa.launchpad.net/chris-lea/node.js/ubuntu/dists/precise/main/i18n/Translation-en_IN Something wicked happened resolving 'ppa.launchpad.net:http' (-5 - No address associated with hostname)
W: Failed to fetch http://ppa.launchpad.net/chris-lea/node.js/ubuntu/dists/precise/main/i18n/Translation-en Something wicked happened resolving 'ppa.launchpad.net:http' (-5 - No address associated with hostname)
W: Failed to fetch http://security.ubuntu.com/ubuntu/dists/precise-security/restricted/source/Sources Something wicked happened resolving 'security.ubuntu.com:http' (-5 - No address associated with hostname)
W: Failed to fetch http://in.archive.ubuntu.com/ubuntu/dists/precise/main/source/Sources Something wicked happened resolving 'in.archive.ubuntu.com:http' (-5 - No address associated with hostname)
W: Failed to fetch http://in.archive.ubuntu.com/ubuntu/dists/precise/restricted/source/Sources Something wicked happened resolving 'in.archive.ubuntu.com:http' (-5 - No address associated with hostname)
W: Failed to fetch http://in.archive.ubuntu.com/ubuntu/dists/precise/universe/source/Sources Something wicked happened resolving 'in.archive.ubuntu.com:http' (-5 - No address associated with hostname)
W: Failed to fetch http://in.archive.ubuntu.com/ubuntu/dists/precise/main/binary-i386/Packages Something wicked happened resolving 'in.archive.ubuntu.com:http' (-5 - No address associated with hostname)
W: Failed to fetch http://in.archive.ubuntu.com/ubuntu/dists/precise/main/i18n/Translation-en_IN Something wicked happened resolving 'in.archive.ubuntu.com:http' (-5 - No address associated with hostname)
W: Failed to fetch http://in.archive.ubuntu.com/ubuntu/dists/precise/main/i18n/Translation-en Something wicked happened resolving 'in.archive.ubuntu.com:http' (-5 - No address associated with hostname)
W: Failed to fetch http://in.archive.ubuntu.com/ubuntu/dists/precise/multiverse/i18n/Translation-en_IN Something wicked happened resolving 'in.archive.ubuntu.com:http' (-5 - No address associated with hostname)
W: Failed to fetch http://in.archive.ubuntu.com/ubuntu/dists/precise-updates/restricted/binary-i386/Packages Something wicked happened resolving 'in.archive.ubuntu.com:http' (-5 - No address associated with hostname)
W: Failed to fetch http://in.archive.ubuntu.com/ubuntu/dists/precise-updates/universe/binary-i386/Packages Something wicked happened resolving 'in.archive.ubuntu.com:http' (-5 - No address associated with hostname)
W: Failed to fetch http://in.archive.ubuntu.com/ubuntu/dists/precise-updates/multiverse/binary-i386/Packages Something wicked happened resolving 'in.archive.ubuntu.com:http' (-5 - No address associated with hostname)
W: Failed to fetch http://in.archive.ubuntu.com/ubuntu/dists/precise-updates/restricted/i18n/Translation-en Something wicked happened resolving 'in.archive.ubuntu.com:http' (-5 - No address associated with hostname)
W: Failed to fetch http://in.archive.ubuntu.com/ubuntu/dists/precise-updates/universe/i18n/Translation-en_IN Something wicked happened resolving 'in.archive.ubuntu.com:http' (-5 - No address associated with hostname)
W: Failed to fetch http://in.archive.ubuntu.com/ubuntu/dists/precise-updates/universe/i18n/Translation-en Something wicked happened resolving 'in.archive.ubuntu.com:http' (-5 - No address associated with hostname)
W: Failed to fetch http://in.archive.ubuntu.com/ubuntu/dists/precise-backports/main/source/Sources Something wicked happened resolving 'in.archive.ubuntu.com:http' (-5 - No address associated with hostname)
W: Failed to fetch http://in.archive.ubuntu.com/ubuntu/dists/precise-backports/restricted/source/Sources Something wicked happened resolving 'in.archive.ubuntu.com:http' (-5 - No address associated with hostname)
W: Failed to fetch http://in.archive.ubuntu.com/ubuntu/dists/precise-backports/universe/source/Sources Something wicked happened resolving 'in.archive.ubuntu.com:http' (-5 - No address associated with hostname)
W: Failed to fetch http://in.archive.ubuntu.com/ubuntu/dists/precise-backports/multiverse/source/Sources Something wicked happened resolving 'in.archive.ubuntu.com:http' (-5 - No address associated with hostname)
E: Some index files failed to download. They have been ignored, or old ones used instead.
如何解决这个问题？
答案1
尝试从 NetwrokManager 内部编辑 DNS 服务器。
首先在终端运行
sudo rm /var/lib/apt/lists/* -vf
然后打开 NetworkManager 并编辑当前连接，更改 DNS 设置。转到 ipv4 设置，选择仅限自动 (DHCP) 地址按照方法并手动输入您想要的 DNS 服务器。这里我们使用 Google OpenDNS 服务器 8.8.8.8 和 8.8.8.4 ，您可以添加多个地址并用逗号分隔。
然后运行
sudo service network-manager restart
sudo apt-get update