【原创】Linux Ubuntu 1…

Linux Ubuntu 12.04 E: Some index files failed to download, they have been ignored, or old ones used instead

sudo apt-get update 

解决方案一：

下载 22.4 MB，耗时 13分 43秒 (27.2 kB/s)                                                                                

W: 无法下载 bzip2:/var/lib/apt/lists/partial/ppa.launchpad.net_phablet-team_tools_ubuntu_dists_precise_main_binary-i386_Packages   Hash 校验和不符

E: Some index files failed to download. They have been ignored, or old ones used instead.

sudo rm /var/lib/apt/lists/* -v

解决方案二：

W: GPG 错误：http://cn.archive.ubuntu.com precise-backports Release: 下列签名无效： BADSIG 40976EAF437D05B5 Ubuntu     Archive Automatic Signing Key

W: 无法下载 gzip:/var/lib/apt/lists/partial/cn.archive.ubuntu.com_ubuntu_dists_precise_multiverse_source_Sources   Hash 校验和不符

gpg --keyserver subkeys.pgp.net --recv 40976EAF437D05B5

gpg --export --armor 40976EAF437D05B5 | sudo apt-key add -

解决方案三：

W: 无法下载 http://archive.ubuntu.com/ubuntu/dists/precise-backports/restricted/binary-i386/Packages   404   Not Found [IP: 91.189.91.14 80]

E: Some index files failed to download. They have been ignored, or old ones used instead.

软件源的问题了...

sudo cp /etc/apt/sources.list ~/ 

sudo wget " http://pastebin.com/raw.php?i=uzhrtg5M" -O /etc/apt/sources.list 

sudo apt-get update

sudo rm /etc/apt/sources.list.d/ubuntu-extras.list

sudo apt-get update

标红色位置内容直接修改sources.list内容即可。参考： Aliyun Open Source Mirror Site

参见： Ununtu源   源列表 

参考：

Ubuntu 更新时出现的问题＆解决方案

E: Some index files failed to download. They have been ignored, or old ones used instead after apt-get update