升级到11.10时，Update Manager无法找到repos
我似乎无法从11.04升级到Oneiric，因为：
Error during update A problem occurred during the update. This is usually some sort of network problem, please check your network connection and retry. W:Failed to fetch http://security.ubuntu.com/ubuntu/dists/oneiric-security/multivers/binary-amd64/Packages 404 Not Found [IP: 91.189.92.167 80], W:Failed to fetch gzip:/var/lib/apt/lists/partial/security.ubuntu.com_ubuntu_dists_oneiric-security_main_binary-i386_Packages Hash Sum mismatch, W:Failed to fetch gzip:/var/lib/apt/lists/partial/security.ubuntu.com_ubuntu_dists_oneiric-security_universe_binary-i386_Packages Hash Sum mismatch, E:Some index files failed to download. They have been ignored, or 旧的用来代替。
现在我想我会检查我的网络连接，尽管它可以找到所有其他包并且它返回我的网络很好。 所以我决定自己ping这个包位置的IP（91.189.92.167）并获得：
PING 91.189.92.167 (91.189.92.167) 56(84) bytes of data. 64 bytes from 91.189.92.167: icmp_req=1 ttl=128 time=40.5 ms 64 bytes from 91.189.92.167: icmp_req=2 ttl=128 time=39.6 ms 64 bytes from 91.189.92.167: icmp_req=3 ttl=128 time=41.0 ms 64 bytes from 91.189.92.167: icmp_req=4 ttl=128 time=38.7 ms 64 bytes from 91.189.92.167: icmp_req=5 ttl=128 time=41.1 ms 64 bytes from 91.189.92.167: icmp_req=6 ttl=128 time=38.6 ms --- 91.189.92.167 ping statistics --- 6 packets transmitted, 6 received, 0% packet loss, time 5009ms rtt min/avg/max/mdev = 38.658/39.967/41.195/1.038 ms
这意味着一切都是花花公子。 所以我想也许主机无法解决所以我做了主机-v：
sam@ubuntu:~$ host -v security.ubuntu.com Trying "security.ubuntu.com" ;; ->>HEADER<>HEADER<>HEADER<<- opcode: QUERY, status: NOERROR, id: 23755 ;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0 ;; QUESTION SECTION: ;security.ubuntu.com. IN MX ;; AUTHORITY SECTION: ubuntu.com. 5 IN SOA ns1.canonical.com.hostmaster.ca nonical.com. 2012011402 10800 3600 604800 3600 Received 98 bytes from 192.168.153.2#53 in 40 ms
这看起来只是花花公子所以我坚持认为，由于某种原因，它必须是：
Hash Sum mismatch, E:Some index files failed to download. They have been ignored, or old ones used instead.
所以我做了一些搜索，发现ppa repos有问题： Update Manager拒绝更新
但问题是我没有使用ppa因此无法成为我的问题。
有谁知道还有什么可以阻止我升级我的Ubuntu？
也许我忽略了一些正好在我眼前的东西，它刚好超过我的睡觉时间，无论哪种方式，我都完全被难倒了。
谢谢，
编辑：当我尝试做一个sudo apt-get更新现在我得到：
Err http://security.ubuntu.com oneiric-security/multiverse amd64 Packages 404 Not Found [IP: 91.189.92.167 80] W: Failed to fetch http://security.ubuntu.com/ubuntu/dists/oneiric-security/multiverse/binary-amd64/Packages 404 Not Found [IP: 91.189.92.167 80] E: Some index files failed to download. They have been ignored, or old ones used instead.
你的sources.list中有一个拼写错误（ multivers而不是oneiric-security存储库的multiverse保护程序）导致404 Not Found错误
对于这两个Hash Sum不匹配错误：删除/ var / lib / apt / lists / partial /中的文件并尝试再次更新。
如果仍然出现此错误，请下载http://security.ubuntu.com/ubuntu/dists/oneiric-security/main/binary-i386/Packages.gz ，计算MD5校验和并将其与http：//中的校验和进行比较security.ubuntu.com/ubuntu/dists/oneiric-security/Release
他们匹配吗？