尝试更新Ubuntu 16.04时出现此错误。我已经尝试过很少的解决方案,但到目前为止没有任何效果。
错误:
W: http://archive.canonical.com/ubuntu/dists/precise/Release.gpg: Signature by key 630239CC130E1A7FD81A27B140976EAF437D05B5 uses weak digest algorithm (SHA1)
W: http://us.archive.ubuntu.com/ubuntu/dists/precise-security/InRelease: Signature by key 630239CC130E1A7FD81A27B140976EAF437D05B5 uses weak digest algorithm (SHA1)
W: GPG error: http://extras.ubuntu.com/ubuntu precise Release: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 16126D3A3E5C1192
W: The repository 'http://extras.ubuntu.com/ubuntu precise Release' is not signed.
N: Data from such a repository can't be authenticated and is therefore potentially dangerous to use.
N: See apt-secure(8) manpage for repository creation and user configuration details.
W: http://us.archive.ubuntu.com/ubuntu/dists/precise-updates/InRelease: Signature by key 630239CC130E1A7FD81A27B140976EAF437D05B5 uses weak digest algorithm (SHA1)
W: http://us.archive.ubuntu.com/ubuntu/dists/precise-backports/InRelease: Signature by key 630239CC130E1A7FD81A27B140976EAF437D05B5 uses weak digest algorithm (SHA1)
W: http://us.archive.ubuntu.com/ubuntu/dists/precise/Release.gpg: Signature by key 630239CC130E1A7FD81A27B140976EAF437D05B5 uses weak digest algorithm (SHA1)
W: The repository 'http://ppa.launchpad.net/upubuntu-com/network/ubuntu xenial Release' does not have a Release file.
N: Data from such a repository can't be authenticated and is therefore potentially dangerous to use.
N: See apt-secure(8) manpage for repository creation and user configuration details.
E: Failed to fetch http://ppa.launchpad.net/upubuntu-com/network/ubuntu/dists/xenial/main/binary-amd64/Packages 404 Not Found
E: Some index files failed to download. They have been ignored, or old ones used instead.
从软件和更新部分中取消选中了一些不需要的软件包/存储库后,我设法摆脱了一些错误,但仍然仍然存在少量错误:
The repository 'http://ppa.launchpad.net/upubuntu-com/network/ubuntu xenial Release' does not have a Release file.
N: Data from such a repository can't be authenticated and is therefore potentially dangerous to use.
N: See apt-secure(8) manpage for repository creation and user configuration details.
W: http://archive.canonical.com/ubuntu/dists/precise/Release.gpg: Signature by key 630239CC130E1A7FD81A27B140976EAF437D05B5 uses weak digest algorithm (SHA1)
E: Failed to fetch http://ppa.launchpad.net/upubuntu-com/network/ubuntu/dists/xenial/main/binary-amd64/Packages 404 Not Found
E: Some index files failed to download. They have been ignored, or old ones used instead.
应用以下提供的解决方案(由Raphael提供)后,大多数错误得以解决。除了这些错误:
W: The repository 'http://ppa.launchpad.net/upubuntu-com/network/ubuntu xenial Release' does not have a Release file.
N: Data from such a repository can't be authenticated and is therefore potentially dangerous to use.
N: See apt-secure(8) manpage for repository creation and user configuration details.
E: Failed to fetch http://ppa.launchpad.net/upubuntu-com/network/ubuntu/dists/xenial/main/binary-amd64/Packages 404 Not Found
E: Some index files failed to download. They have been ignored, or old ones used instead.
您正在使用,Xenial
但sources.list
包含的链接Precise
。要纠正这一点,
备份您的当前sources.list
:
sudo mv /etc/apt/sources.list /etc/apt/sources.list.bak
创建一个新的source.list
:
sudo nano /etc/apt/sources.list
将以下内容复制并粘贴到其中:
deb http://us.archive.ubuntu.com/ubuntu/ xenial main restricted universe multiverse
deb-src http://us.archive.ubuntu.com/ubuntu/ xenial main restricted universe multiverse
deb http://us.archive.ubuntu.com/ubuntu/ xenial-security main restricted universe multiverse
deb http://us.archive.ubuntu.com/ubuntu/ xenial-updates main restricted universe multiverse
deb http://us.archive.ubuntu.com/ubuntu/ xenial-proposed main restricted universe multiverse
deb http://us.archive.ubuntu.com/ubuntu/ xenial-backports main restricted universe multiverse
deb-src http://us.archive.ubuntu.com/ubuntu/ xenial-security main restricted universe multiverse
deb-src http://us.archive.ubuntu.com/ubuntu/ xenial-updates main restricted universe multiverse
deb-src http://us.archive.ubuntu.com/ubuntu/ xenial-proposed main restricted universe multiverse
deb-src http://us.archive.ubuntu.com/ubuntu/ xenial-backports main restricted universe multiverse
然后,在键盘上按以下命令:
Ctrl+X然后Y最后Enter。
最后,尝试更新您的资源:
sudo apt-get update
编辑:-ppa
错误是它所说的。这ppa
不具有释放文件Xenial
。要删除ppas
,请在AskUbuntu上遵循此答案。
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