brew安装和update失败问题

网路切换到guest就行了。。。

https://my.oschina.net/boltwu/blog/651633
Brew 是OS X 上类似apt-get以及yum的一个软件包管理器,它依托于Github………………
所以,虽然你侥幸下载到了 brew,但你肯定是无法更新 brew 的。原因你懂。不过虽然不能更新 brew,但这只是指brew这个管理器本身罢了,软件还是可以安装的。但由于无法使用 brew update 也就无法更新软件……我们有必要来给 brew 换源。
更新
注意,如果你按照让 Homebrew 走代理更新这篇文章来操作了,那你就没有必要切换镜像源,因为已经全局代理了,否则的话会导致brew无法更新——因为国外也不能轻易访问国内的。

如果你两者都做了,那么就需要使用下面的命令重新安装 brew :
ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/uninstall)" ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)"

brew 的镜像源
brew 也有镜像源?嗯,确实有的,而且还不止一个:
中科大brew镜像源
清华brew镜像源

更换镜像源

cd /usr/localgit remote set-url origin git://mirrors.tuna.tsinghua.edu.cn/homebrew.git//清华镜像源git remote set-url origin http://mirrors.ustc.edu.cn/homebrew.git//中科大镜像源//二者选其一即可更新

后续操作

cd ~mkdir tmpcd tmp//以下要与你选择的镜像源相同git clone git://mirrors.tuna.tsinghua.edu.cn/homebrew.gitgit clone http://mirrors.ustc.edu.cn/homebrew.git sudo rm -rf /usr/local/.gitsudo rm -rf /usr/local/Librarysudo cp -R homebrew/.git /usr/local/sudo cp -R homebrew/Library /usr/local/

排错
如果你遇到如下问题:

╰─➤ brew updateStashing your changes: M .gitignore M .yardopts M README.md M share/doc/homebrew/Acceptable-Formulae.md M share/doc/homebrew/Common-Issues.md M share/doc/homebrew/FAQ.md M share/doc/homebrew/Formula-Cookbook.md M share/doc/homebrew/Homebrew-0.9.3.md M share/doc/homebrew/How-To-Open-a-Homebrew-Pull-Request-(and-get-it-merged).md D share/doc/homebrew/How-to-Create-and-Maintain-a-Tap.md M share/doc/homebrew/How-to-build-software-outside-Homebrew-with-Homebrew-keg-only-dependencies.md M share/doc/homebrew/Installation.md M share/doc/homebrew/Interesting-Taps-&-Branches.md M share/doc/homebrew/Maintainer-Guidelines.md M share/doc/homebrew/Press.md M share/doc/homebrew/Python-for-Formula-Authors.md M share/doc/homebrew/Querying-Brew.md M share/doc/homebrew/README.md D share/doc/homebrew/Rename-A-Formula.md M share/doc/homebrew/Troubleshooting.md M share/doc/homebrew/Xcode.md M share/doc/homebrew/brew-tap.md M share/man/man1/brew.1fatal: Unable to create '/usr/local/.git/index.lock': Permission deniedCannot save the current index stateError: Failure while executing: git stash save --include-untracked --quiet

那么就安照如下命令排错:

sudo chgrp -R admin /usr/local//确保目录归属管理组sudo chmod -R g+w /usr/local//确保管理组可读

最后
没了,运行 brew update 来愉快地更新吧!然后 brew upgrade 。

homebrew重装
$ cd brew --prefix $ rm -rf Cellar $ brew prune $ rm -rf Library .git .gitignore bin/brew README.md share/man/man1/brew $ rm -rf ~/Library/Caches/Homebrew =========================== 然后再到官网上去重装就可以了 长期运行homebrew,其实垃圾也很多。不重装都不舒服了

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