执行apt-get update返回Failed to fetch ".../trusty/Release"

[poloshiao]

Err http://extras.ubuntu.com trusty InRelease
Err http://extras.ubuntu.com trusty Release.gpg
Cannot initiate the connection to extras.ubuntu.com:80 (2001:67c:1360:8c01::23). - connect (101: Network is unreachable) [IP: 2001:67c:1360:8c01::23 80]
W: Failed to fetch http://extras.ubuntu.com/ubuntu/dists/t ... elease.gpg Cannot initiate the connection to extras.ubuntu.com:80 (2001:67c:1360:8c01::23). - connect (101: Network is unreachable) [IP: 2001:67c:1360:8c01::23 80]

1. http://extras.ubuntu.com 可能頻寬不夠或網路不穩 常常連不上 以至於 更新時出現錯誤訊息
1-0. 暫時解決方案 就是把它 disable 等一段時候 再 enable
1-0-1. disable 時來自該套件庫的套件 只是暫時性不更新 一般不會有何不良影響
1-1. sudo cat /etc/apt/sources.list | grep extra
deb http://extras.ubuntu.com/ubuntu trusty main
deb-src http://extras.ubuntu.com/ubuntu trusty main
1-1-1. disable
# deb http://extras.ubuntu.com/ubuntu trusty main
# deb-src http://extras.ubuntu.com/ubuntu trusty main
1-2. enable
把 # 移除
2. 記得 更改後 要執行
sudo apt-get update

Err http://extras.ubuntu.com trusty InRelease
Err http://extras.ubuntu.com trusty Release.gpg
Cannot initiate the connection to extras.ubuntu.com:80 (2001:67c:1360:8c01::23). - connect (101: Network is unreachable) [IP: Cannot initiate the connection to extras.ubuntu.com:80 (2001:67c:1360:8c01::23). - connect (101: Network is unreachable) [IP: 2001:67c:1360:8c01::23 80]
Cannot initiate the connection to us.archive.ubuntu.com:80 (2001:67c:1562::15). - connect (101: Network is unreachable) [IP: 2001:67c:1562::15 80]
Err http://us.archive.ubuntu.com trusty-updates Release.gpg
Cannot initiate the connection to us.archive.ubuntu.com:80 (2001:67c:1562::15). - connect (101: Network is unreachable) [IP: 2001:67c:1562::15 80]
Err http://us.archive.ubuntu.com trusty-backports Release.gpg
Cannot initiate the connection to us.archive.ubuntu.com:80 (2001:67c:1562::15). - connect (101: Network is unreachable) [IP: 2001:67c:1562::15 80]
Cannot initiate the connection to security.ubuntu.com:80 (2001:67c:1360:8c01::19). - connect (101: Network is unreachable) [IP: 2001:67c:1360:8c01::19 80]
W: Failed to fetch http://extras.ubuntu.com/ubuntu/dists/t ... elease.gpg Cannot initiate the connection to extras.ubuntu.com:80 (2001:67c:1360:8c01::23). - connect (101: Network is unreachable) [IP: 2001:67c:1360:8c01::23 80]
W: Failed to fetch http://us.archive.ubuntu.com/ubuntu/dis ... elease.gpg Cannot initiate the connection to us.archive.ubuntu.com:80 (2001:67c:1562::15). - connect (101: Network is unreachable) [IP: 2001:67c:1562::15 80]
W: Failed to fetch http://us.archive.ubuntu.com/ubuntu/dis ... elease.gpg Cannot initiate the connection to us.archive.ubuntu.com:80 (2001:67c:1562::15). - connect (101: Network is unreachable) [IP: 2001:67c:1562::15 80]
W: Failed to fetch http://us.archive.ubuntu.com/ubuntu/dis ... elease.gpg Cannot initiate the connection to us.archive.ubuntu.com:80 (2001:67c:1562::15). - connect (101: Network is unreachable) [IP: 2001:67c:1562::15 80]
W: Failed to fetch http://security.ubuntu.com/ubuntu/dists ... elease.gpg Cannot initiate the connection to security.ubuntu.com:80 (2001:67c:1360:8c01::19). - connect (101: Network is unreachable) [IP: 2001:67c:1360:8c01::19 80]

3. 你的 domain name 都解析成 IPV6 但是 你的網路無法到達
extras.ubuntu.com:80 (2001:67c:1360:8c01::23)
us.archive.ubuntu.com:80 (2001:67c:1562::15)
security.ubuntu.com:80 (2001:67c:1360:8c01::19)
3-1. 把下面指令 複製 貼進終端機 執行
3-1-1. sudo ping -c 3 127.0.0.1
3-1-2. sudo ping6 -c 3 ::1
3-1-3. sudo ping -c 3 forum.ubuntu.org.cn
3-1-4. sudo ping6 -c 3 forum.ubuntu.org.cn
把結果直接 選取/複製 貼上來

[vickycq]

Err http://us.archive.ubuntu.com trusty Release.gpg
Cannot initiate the connection to us.archive.ubuntu.com:80 (2001:67c:1562::15). - connect (101: Network is unreachable) [IP: 2001:67c:1562::15 80]

1.
根据自己所处位置，合理选择镜像源。

2.
确认是否可以连接 ipv6 网络？
有可能未开通 ipv6，但由于运营商的设置导致试图使用 ipv6
可以强制 apt-get 使用 ipv4：

代码： 全选

apt-get -o Acquire::ForceIPv4=true update

如果确实是此问题，可创建文件 /etc/apt/apt.conf.d/99force-ipv4 加入：

代码： 全选

Acquire::ForceIPv4 "true";

参考
https://www.vultr.com/docs/force-apt-ge ... -or-debian
http://unix.stackexchange.com/questions ... pv6-method

[nangui.hu]

Err <!-- m --><a class="postlink" href="http://extras.ubuntu.com">http://extras.ubuntu.com</a><!-- m --> trusty InRelease
Err <!-- m --><a class="postlink" href="http://extras.ubuntu.com">http://extras.ubuntu.com</a><!-- m --> trusty Release.gpg
Cannot initiate the connection to extras.ubuntu.com:80 (2001:67c:1360:8c01::23). - connect (101: Network is unreachable) [IP: 2001:67c:1360:8c01::23 80]
W: Failed to fetch <!-- m --><a class="postlink" href="http://extras.ubuntu.com/ubuntu/dists/t ... dists/t</a><!-- m --> ... elease.gpg Cannot initiate the connection to extras.ubuntu.com:80 (2001:67c:1360:8c01::23). - connect (101: Network is unreachable) [IP: 2001:67c:1360:8c01::23 80]

1. <!-- m --><a class="postlink" href="http://extras.ubuntu.com">http://extras.ubuntu.com</a><!-- m --> 可能頻寬不夠或網路不穩 常常連不上 以至於 更新時出現錯誤訊息
1-0. 暫時解決方案 就是把它 disable 等一段時候 再 enable
1-0-1. disable 時來自該套件庫的套件 只是暫時性不更新 一般不會有何不良影響
1-1. sudo cat /etc/apt/sources.list | grep extra
deb <!-- m --><a class="postlink" href="http://extras.ubuntu.com/ubuntu">http:/ ... /ubuntu</a><!-- m --> trusty main
deb-src <!-- m --><a class="postlink" href="http://extras.ubuntu.com/ubuntu">http:/ ... /ubuntu</a><!-- m --> trusty main
1-1-1. disable
# deb <!-- m --><a class="postlink" href="http://extras.ubuntu.com/ubuntu">http:/ ... /ubuntu</a><!-- m --> trusty main
# deb-src <!-- m --><a class="postlink" href="http://extras.ubuntu.com/ubuntu">http:/ ... /ubuntu</a><!-- m --> trusty main
1-2. enable
把 # 移除
2. 記得 更改後 要執行
sudo apt-get update

我照着上面的步骤做了，再执行了一次sudo apt-get update，还是在报同样的错误，这种问题是和网络有关而不是和配置有关吗？我对Ubuntu是初学，还请指教！谢谢你及时的回复！

[poloshiao]

我照着上面的步骤做了，再执行了一次sudo apt-get update，还是在报同样的错误，这种问题是和网络有关而不是和配置有关吗？

http://extras.ubuntu.com 的問題 也包含在
viewtopic.php?p=3148736#p3148736
3. 你的 domain name 都解析成 IPV6 但是 你的網路無法到達
裡面 一同處理

這個建議 也可以試試
viewtopic.php?p=3148737#p3148737

[nangui.hu]

我照着上面的步骤做了，再执行了一次sudo apt-get update，还是在报同样的错误，这种问题是和网络有关而不是和配置有关吗？

<!-- m --><a class="postlink" href="http://extras.ubuntu.com">http://extras.ubuntu.com</a><!-- m --> 的問題 也包含在
<!-- l --><a class="postlink-local" href="viewtopic.php?p=3148736#p3148736">viewt ... 3148736</a><!-- l -->
3. 你的 domain name 都解析成 IPV6 但是 你的網路無法到達
裡面 一同處理

soloman@ubuntu:~$ sudo ping -c 3 127.0.0.1
PING 127.0.0.1 (127.0.0.1) 56(84) bytes of data.
64 bytes from 127.0.0.1: icmp_seq=1 ttl=64 time=2.39 ms
64 bytes from 127.0.0.1: icmp_seq=2 ttl=64 time=0.182 ms
64 bytes from 127.0.0.1: icmp_seq=3 ttl=64 time=0.156 ms

--- 127.0.0.1 ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 2001ms
rtt min/avg/max/mdev = 0.156/0.911/2.396/1.050 ms
soloman@ubuntu:~$ sudo ping6 -c 3 ::1
PING ::1(::1) 56 data bytes
64 bytes from ::1: icmp_seq=1 ttl=64 time=2.81 ms
64 bytes from ::1: icmp_seq=2 ttl=64 time=0.200 ms
64 bytes from ::1: icmp_seq=3 ttl=64 time=0.093 ms

--- ::1 ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 2000ms
rtt min/avg/max/mdev = 0.093/1.037/2.819/1.260 ms
soloman@ubuntu:~$ sudo ping -c 3 forum.ubuntu.org.cn
PING forum.ubuntu.org.cn (192.157.242.155) 56(84) bytes of data.
64 bytes from 192.157.242.155: icmp_seq=1 ttl=128 time=215 ms
64 bytes from 192.157.242.155: icmp_seq=2 ttl=128 time=220 ms
64 bytes from 192.157.242.155: icmp_seq=3 ttl=128 time=223 ms

--- forum.ubuntu.org.cn ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 3285ms
rtt min/avg/max/mdev = 215.805/220.165/223.763/3.293 ms
soloman@ubuntu:~$ sudo ping -c 3 forum.ubuntu.org.cn
PING forum.ubuntu.org.cn (192.157.242.155) 56(84) bytes of data.
64 bytes from 192.157.242.155: icmp_seq=1 ttl=128 time=223 ms
64 bytes from 192.157.242.155: icmp_seq=2 ttl=128 time=210 ms
64 bytes from 192.157.242.155: icmp_seq=3 ttl=128 time=219 ms

--- forum.ubuntu.org.cn ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 2003ms
rtt min/avg/max/mdev = 210.098/217.416/223.021/5.426 ms
以上是我执行的结果

[poloshiao]

sudo ping -c 3 forum.ubuntu.org.cn

第四個 是
sudo ping6 -c 3 forum.ubuntu.org.cn
我剛剛發現漏掉 6 已更正了

[nangui.hu]

sudo ping -c 3 forum.ubuntu.org.cn

第四個 是
sudo ping6 -c 3 forum.ubuntu.org.cn
我剛剛發現漏掉 6 已更正了

soloman@ubuntu:~$ sudo ping6 -c 3 forum.ubuntu.org.cn
connect: Network is unreachable

这是执行后的结果

[vickycq]

sudo ping6 -c 3 forum.ubuntu.org.cn
connect: Network is unreachable
这是执行后的结果

ipv6 不通？...
17楼的方案是否有效？

[nangui.hu]

connect: Network is unreachable
这是执行后的结果

17楼的方案是否有效？

按照17楼的第一行代码执行后一直停留在
100% [Waiting for headers]
不知有没有完成？

[vickycq]

按照17楼的第一行代码执行后一直停留在
100% [Waiting for headers]
不知有没有完成？

你人在北美？
根据自己所处位置，合理选择镜像源。
例如中国大陆可选择 http://mirrors.ustc.edu.cn/

PS. ubuntu 没有 httpredir 就是麻烦...

[nangui.hu]

按照17楼的第一行代码执行后一直停留在
100% [Waiting for headers]
不知有没有完成？

你人在北美？
根据自己所处位置，合理选择镜像源。
例如中国大陆可选择 <!-- m --><a class="postlink" href="http://mirrors.ustc.edu.cn/">http://mir ... edu.cn/</a><!-- m -->

PS. ubuntu 没有 httpredir 就是麻烦...

完成了，多谢了
Fetched 4,667 kB in 6min 46s (11.5 kB/s)
Reading package lists... Done
没在北美，公司是外企，可能用的网络是国外的吧

[vickycq]

Fetched 4,667 kB in 6min 46s (11.5 kB/s)

太慢了，换个源试试吧
http://extras.ubuntu.com 等多余的全部删掉

代码： 全选

deb http://mirrors.aliyun.com/ubuntu/ trusty main restricted universe multiverse
deb http://mirrors.aliyun.com/ubuntu/ trusty-security main restricted universe multiverse
deb http://mirrors.aliyun.com/ubuntu/ trusty-updates main restricted universe multiverse
deb http://mirrors.aliyun.com/ubuntu/ trusty-proposed main restricted universe multiverse
deb http://mirrors.aliyun.com/ubuntu/ trusty-backports main restricted universe multiverse
deb-src http://mirrors.aliyun.com/ubuntu/ trusty main restricted universe multiverse
deb-src http://mirrors.aliyun.com/ubuntu/ trusty-security main restricted universe multiverse
deb-src http://mirrors.aliyun.com/ubuntu/ trusty-updates main restricted universe multiverse
deb-src http://mirrors.aliyun.com/ubuntu/ trusty-proposed main restricted universe multiverse
deb-src http://mirrors.aliyun.com/ubuntu/ trusty-backports main restricted universe multiverse

[nangui.hu]

好，我摸索摸索，谢了