当我调用时，sudo apt-get update进程停止98% [Connecting to security.ubuntu.com (2001:67c:1562::15)]，没有其他任何事情发生。我已经完成了这因为报告的 IPv6 问题，但我没有帮助。我已经安装了 Ubuntu 12.04 并使用 Gnome 3。我等了 10 分钟让更新完成，但没有完成。以下是完整的更新输出：
hag@hag-PC:~$ sudo apt-get update
[sudo] password for hag:
Hit http://ppa.launchpad.net precise Release.gpg
Hit http://ppa.launchpad.net precise Release.gpg
Hit http://ppa.launchpad.net precise Release.gpg
Hit http://de.archive.ubuntu.com precise Release.gpg
Hit http://extras.ubuntu.com precise Release.gpg
Hit http://de.archive.ubuntu.com precise-updates Release.gpg
Hit http://de.archive.ubuntu.com precise-backports Release.gpg
Hit http://ppa.launchpad.net precise Release
Hit http://ppa.launchpad.net precise Release
Hit http://de.archive.ubuntu.com precise Release
Hit http://extras.ubuntu.com precise Release
Hit http://ppa.launchpad.net precise Release
Hit http://de.archive.ubuntu.com precise-updates Release
Hit http://ppa.launchpad.net precise/main Sources
Hit http://ppa.launchpad.net precise/main amd64 Packages
Hit http://ppa.launchpad.net precise/main i386 Packages
Ign http://ppa.launchpad.net precise/main TranslationIndex
Hit http://de.archive.ubuntu.com precise-backports Release
Hit http://extras.ubuntu.com precise/main Sources
Hit http://ppa.launchpad.net precise/main Sources
Hit http://ppa.launchpad.net precise/main amd64 Packages
Hit http://ppa.launchpad.net precise/main i386 Packages
Ign http://ppa.launchpad.net precise/main TranslationIndex
Hit http://ppa.launchpad.net precise/main Sources
Hit http://de.archive.ubuntu.com precise/main Sources
Hit http://de.archive.ubuntu.com precise/restricted Sources
Hit http://de.archive.ubuntu.com precise/universe Sources
Hit http://de.archive.ubuntu.com precise/multiverse Sources
Hit http://de.archive.ubuntu.com precise/main amd64 Packages
Hit http://de.archive.ubuntu.com precise/restricted amd64 Packages
Hit http://de.archive.ubuntu.com precise/universe amd64 Packages
Hit http://de.archive.ubuntu.com precise/multiverse amd64 Packages
Hit http://de.archive.ubuntu.com precise/main i386 Packages
Hit http://de.archive.ubuntu.com precise/restricted i386 Packages
Hit http://extras.ubuntu.com precise/main amd64 Packages
Hit http://extras.ubuntu.com precise/main i386 Packages
Ign http://extras.ubuntu.com precise/main TranslationIndex
Hit http://ppa.launchpad.net precise/main amd64 Packages
Hit http://ppa.launchpad.net precise/main i386 Packages
Ign http://ppa.launchpad.net precise/main TranslationIndex
Hit http://de.archive.ubuntu.com precise/universe i386 Packages
Hit http://de.archive.ubuntu.com precise/multiverse i386 Packages
Hit http://de.archive.ubuntu.com precise/main TranslationIndex
Hit http://de.archive.ubuntu.com precise/multiverse TranslationIndex
Hit http://de.archive.ubuntu.com precise/restricted TranslationIndex
Hit http://de.archive.ubuntu.com precise/universe TranslationIndex
Hit http://de.archive.ubuntu.com precise-updates/main Sources
Hit http://de.archive.ubuntu.com precise-updates/restricted Sources
Hit http://de.archive.ubuntu.com precise-updates/universe Sources
Hit http://de.archive.ubuntu.com precise-updates/multiverse Sources
Hit http://de.archive.ubuntu.com precise-updates/main amd64 Packages
Hit http://de.archive.ubuntu.com precise-updates/restricted amd64 Packages
Hit http://de.archive.ubuntu.com precise-updates/universe amd64 Packages
Hit http://de.archive.ubuntu.com precise-updates/multiverse amd64 Packages
Hit http://de.archive.ubuntu.com precise-updates/main i386 Packages
Hit http://de.archive.ubuntu.com precise-updates/restricted i386 Packages
Hit http://de.archive.ubuntu.com precise-updates/universe i386 Packages
Hit http://de.archive.ubuntu.com precise-updates/multiverse i386 Packages
Hit http://de.archive.ubuntu.com precise-updates/main TranslationIndex
Hit http://de.archive.ubuntu.com precise-updates/multiverse TranslationIndex
Hit http://de.archive.ubuntu.com precise-updates/restricted TranslationIndex
Hit http://de.archive.ubuntu.com precise-updates/universe TranslationIndex
Hit http://de.archive.ubuntu.com precise-backports/main Sources
Hit http://de.archive.ubuntu.com precise-backports/restricted Sources
Hit http://de.archive.ubuntu.com precise-backports/universe Sources
Hit http://de.archive.ubuntu.com precise-backports/multiverse Sources
Hit http://de.archive.ubuntu.com precise-backports/main amd64 Packages
Hit http://de.archive.ubuntu.com precise-backports/restricted amd64 Packages
Hit http://de.archive.ubuntu.com precise-backports/universe amd64 Packages
Hit http://de.archive.ubuntu.com precise-backports/multiverse amd64 Packages
Hit http://de.archive.ubuntu.com precise-backports/main i386 Packages
Hit http://de.archive.ubuntu.com precise-backports/restricted i386 Packages
Hit http://de.archive.ubuntu.com precise-backports/universe i386 Packages
Hit http://de.archive.ubuntu.com precise-backports/multiverse i386 Packages
Hit http://de.archive.ubuntu.com precise-backports/main TranslationIndex
Hit http://de.archive.ubuntu.com precise-backports/multiverse TranslationIndex
Hit http://de.archive.ubuntu.com precise-backports/restricted TranslationIndex
Hit http://de.archive.ubuntu.com precise-backports/universe TranslationIndex
Hit http://de.archive.ubuntu.com precise/main Translation-en
Hit http://de.archive.ubuntu.com precise/multiverse Translation-en
Hit http://de.archive.ubuntu.com precise/restricted Translation-en
Hit http://de.archive.ubuntu.com precise/universe Translation-en
Hit http://de.archive.ubuntu.com precise-updates/main Translation-en
Hit http://de.archive.ubuntu.com precise-updates/multiverse Translation-en
Hit http://de.archive.ubuntu.com precise-updates/restricted Translation-en
Hit http://de.archive.ubuntu.com precise-updates/universe Translation-en
Hit http://de.archive.ubuntu.com precise-backports/main Translation-en
Hit http://de.archive.ubuntu.com precise-backports/multiverse Translation-en
Hit http://de.archive.ubuntu.com precise-backports/restricted Translation-en
Hit http://de.archive.ubuntu.com precise-backports/universe Translation-en
Ign http://extras.ubuntu.com precise/main Translation-en_US
Ign http://ppa.launchpad.net precise/main Translation-en_US
Ign http://ppa.launchpad.net precise/main Translation-en
Ign http://ppa.launchpad.net precise/main Translation-en_US
Ign http://extras.ubuntu.com precise/main Translation-en
Ign http://ppa.launchpad.net precise/main Translation-en
Ign http://ppa.launchpad.net precise/main Translation-en_US
Ign http://ppa.launchpad.net precise/main Translation-en
98% [Connecting to security.ubuntu.com (2001:67c:1562::15)]
编辑：好的，我再次启用了 IPv6。当我在 Synaptic 软件包管理器中按“重新加载”时，它永远停留在“正在下载文件 115/115”的位置。当我按“取消”时，它显示
获取失败 http://security.ubuntu.com/ubuntu/dists/precise-security/Release.gpg
某些索引文件下载失败。它们已被忽略或使用旧文件代替。
编辑：我也可以ping security.ubuntu.com毫无问题
PING security.ubuntu.com (91.189.92.200) 56(84) bytes of data.
64 bytes from obake.canonical.com (91.189.92.200): icmp_req=1 ttl=49 time=29.7 ms
64 bytes from obake.canonical.com (91.189.92.200): icmp_req=2 ttl=49 time=31.5 ms
64 bytes from obake.canonical.com (91.189.92.200): icmp_req=3 ttl=49 time=29.5 ms
64 bytes from obake.canonical.com (91.189.92.200): icmp_req=4 ttl=49 time=30.1 ms
64 bytes from obake.canonical.com (91.189.92.200): icmp_req=5 ttl=49 time=29.2 ms
^C
--- security.ubuntu.com ping statistics ---
6 packets transmitted, 6 received, 0% packet loss, time 5008ms
rtt min/avg/max/mdev = 29.282/29.950/31.598/0.808 ms
答案1
你必须耐心等待（一两个小时）。获取签名时可能会出错，你只能等着看电影，然后你可能会收到错误（我猜是（无法连接））。之后你必须在你的 上搜索它source.list，删除它并搜索新的。
我推荐这个页面来更新你的源列表
http://repogen.simplylinux.ch/
要有耐心，非常有耐心 :)