Ubuntu的软件源更新常见问题及解决
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问题一:
执行命令
sudo apt-get update
错误描述如下:
W: Failed to fetch http://mirrors.sohu.com/ubuntu/dists/precise/universe/i18n/Index No Hash entry in Release file /var/lib/apt/lists/partial/mirrors.sohu.com_ubuntu_dists_precise_universe_i18n_IndexW: Failed to fetch bzip2:/var/lib/apt/lists/partial/mirrors.sohu.com_ubuntu_dists_precise-updates_main_binary-i386_Packages Hash Sum mismatchW: Failed to fetch bzip2:/var/lib/apt/lists/partial/extras.ubuntu.com_ubuntu_dists_precise_main_binary-i386_Packages Hash Sum mismatchE: Some index files failed to download. They have been ignored, or old ones used instead.
解决方法:
将/var/lib/apt/lists/partial/下的所有文件删除,但是这可以解决大部分问题,个别源不能解决,如"/var/lib/apt/lists/partial/extras.ubuntu.com_ubuntu_dists_precise_main_binary-i386_Packages",无耐进入/var/lib/apt/lists/将对应的文件删除
问题二:
无法找到对应的KEY
W
:
GPG
error: http://mirrors.sohu.com precise Release: The following signatures couldn't be verified because the public key is
not
available:
NO_PUBKEY
40976EAF437D05B5
W
:
GPG
error: http://mirrors.sohu.com precise-updates Release: The following signatures couldn't be verified because the public key is
not
available:
NO_PUBKEY
40976EAF437D05B5
W
:
GPG
error: http://mirrors.sohu.com precise-proposed Release: The following signatures couldn't be verified because the public key is
not
available:
NO_PUBKEY
40976EAF437D05B5
W
:
GPG
error: http://archive.canonical.com precise Release: The following signatures couldn't be verified because the public key is
not
available:
NO_PUBKEY
40976EAF437D05B5
W
:
GPG
error: http://security.ubuntu.com precise-security Release: The following signatures couldn't be verified because the public key is
not
available:
NO_PUBKEY
40976EAF437D05B5
解决方法:
使用如下命令:
gpg --keyserver subkeys.pgp.net --recv-keys
40976EAF437D05B5
gpg -a --export
40976EAF437D05B5
| sudo apt-key add -
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