我刚买了一台新电脑，并在使用时间机器备份还原我的电脑之前安装了自制软件。当我恢复它时，我更改了主用户文件名。我认为这是导致我的问题。
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==> Downloading and installing Homebrew...
remote: Counting objects: 230481, done.
remote: Compressing objects: 100% (60411/60411), done.
remote: Total 230481 (delta 168814), reused 230474 (delta 168810)
Receiving objects: 100% (230481/230481), 52.92 MiB | 744.00 KiB/s, done.
Resolving deltas: 100% (168814/168814), done.
From https://github.com/Homebrew/homebrew
* [new branch] master -> origin/master
error: unable to unlink old 'share/doc/homebrew/Acceptable-Formulae.md' (Permission denied)
error: unable to unlink old 'share/doc/homebrew/Bottles.md' (Permission denied)
error: unable to unlink old 'share/doc/homebrew/Brew-Test-Bot-For-Core-Contributors.md' (Permission denied)
error: unable to unlink old 'share/doc/homebrew/Brew-Test-Bot.md' (Permission denied)
error: unable to unlink old 'share/doc/homebrew/C++-Standard-Libraries.md' (Permission denied)
error: unable to unlink old 'share/doc/homebrew/Common-Issues-for-Core-Contributors.md' (Permission denied)
error: unable to unlink old 'share/doc/homebrew/Common-Issues.md' (Permission denied)
error: unable to unlink old 'share/doc/homebrew/Custom-GCC-and-cross-compilers.md' (Permission denied)
error: unable to unlink old 'share/doc/homebrew/External-Commands.md' (Permission denied)
error: unable to unlink old 'share/doc/homebrew/FAQ.md' (Permission denied)
error: unable to unlink old 'share/doc/homebrew/Formula-Cookbook.md' (Permission denied)
error: unable to unlink old 'share/doc/homebrew/Gems,-Eggs-and-Perl-Modules.md' (Permission denied)
error: unable to unlink old 'share/doc/homebrew/Homebrew-0.8.md' (Permission denied)
error: unable to unlink old 'share/doc/homebrew/Homebrew-0.9.3.md' (Permission denied)
error: unable to unlink old 'share/doc/homebrew/Homebrew-0.9.md' (Permission denied)
error: unable to unlink old 'share/doc/homebrew/Homebrew-2.md' (Permission denied)
error: unable to unlink old 'share/doc/homebrew/Homebrew-and-Python.md' (Permission denied)
error: unable to unlink old 'share/doc/homebrew/How-To-Open-a-Homebrew-Pull-Request-(and-get-it-merged).md' (Permission denied)
error: unable to unlink old 'share/doc/homebrew/How-to-build-software-outside-Homebrew-with-Homebrew-keg-only-dependencies.md' (Permission denied)
error: unable to unlink old 'share/doc/homebrew/Installation.md' (Permission denied)
error: unable to unlink old 'share/doc/homebrew/Interesting-Taps-&-Branches.md' (Permission denied)
error: unable to unlink old 'share/doc/homebrew/Maintainer-Guidelines.md' (Permission denied)
error: unable to unlink old 'share/doc/homebrew/Press.md' (Permission denied)
error: unable to unlink old 'share/doc/homebrew/Python-for-Formula-Authors.md' (Permission denied)
error: unable to unlink old 'share/doc/homebrew/Querying-Brew.md' (Permission denied)
error: unable to unlink old 'share/doc/homebrew/README.md' (Permission denied)
error: unable to unlink old 'share/doc/homebrew/The-brew-command.md' (Permission denied)
error: unable to unlink old 'share/doc/homebrew/Tips-N'-Tricks.md' (Permission denied)
error: unable to unlink old 'share/doc/homebrew/Troubleshooting.md' (Permission denied)
error: unable to unlink old 'share/doc/homebrew/Xcode.md' (Permission denied)
error: unable to unlink old 'share/doc/homebrew/brew-tap.md' (Permission denied)
error: unable to unlink old 'share/doc/homebrew/brew-test-bot-failed-jenkins.png' (Permission denied)
error: unable to unlink old 'share/doc/homebrew/brew-test-bot-failed-pr.png' (Permission denied)
error: unable to unlink old 'share/doc/homebrew/brew-test-bot-failed-test.png' (Permission denied)
error: unable to unlink old 'share/doc/homebrew/brew-test-bot-for-core-contributors-block.png' (Permission denied)
error: unable to unlink old 'share/doc/homebrew/brew-test-bot-for-core-contributors-console.png' (Permission denied)
error: unable to unlink old 'share/doc/homebrew/brew-test-bot-for-core-contributors-tabs.png' (Permission denied)
error: unable to unlink old 'share/doc/homebrew/brew-test-bot-for-core-contributors-trigger.png' (Permission denied)
error: unable to unlink old 'share/doc/homebrew/brew-test-bot-passed-jenkins.png' (Permission denied)
error: unable to unlink old 'share/doc/homebrew/brew-test-bot-passed-pr.png' (Permission denied)
error: unable to unlink old 'share/doc/homebrew/brew-test-bot-triggered-pr.png' (Permission denied)
fatal: Could not reset index file to revision 'origin/master'.
Failed during: git reset --hard origin/master
这是它给我的错误。 我已经sudo卸载了旧的自制软件，＆＃34; rm -rf / usr / local / Cellar /usr/local/.git＆amp;＆amp; brew cleanup＆＃34;，更改了文件权限，将文件＆＃34; chown -R $ USER放在/ usr / local /＆＃34;中的库中，移动旧文件
cd /usr/local
# Moving old stuff out of the way.
sudo mv -v Library Library.old
# Now run Homebrew install script again.
正如github问题（https://github.com/Homebrew/homebrew/issues/15138）中所建议的那样。这些都没有奏效！想法？
答案 0 :(得分：2)
好吧，显然我的权限和其他事情都搞砸了。我的卸载是成功的，但是在重新安装Homebrew时遇到了同样的错误（如原始问题中所列）。但是，尝试安装后，我仍然可以运行brew doctor--这给了我以下错误。
Alex-Taipales-MacBook:~ alextaipale$ brew doctor
Please note that these warnings are just used to help the Homebrew maintainers
with debugging if you file an issue. If everything you use Homebrew for is
working fine: please don't worry and just ignore them. Thanks!
Warning: You have uncommitted modifications to Homebrew
If this a surprise to you, then you should stash these modifications.
Stashing returns Homebrew to a pristine state but can be undone
should you later need to do so for some reason.
cd /usr/local/Library && git stash && git clean -d -f
Alex-Taipales-MacBook:~ alextaipale$ cd /usr/local/Library && git stash && git clean -d -f
fatal: bad revision 'HEAD'
fatal: bad revision 'HEAD'
fatal: Needed a single revision
You do not have the initial commit yet
Alex-Taipales-MacBook:Library alextaipale$ cd /usr/local/Library
Alex-Taipales-MacBook:Library alextaipale$ git show HEAD
fatal: ambiguous argument 'HEAD': unknown revision or path not in the working tree.
Use '--' to separate paths from revisions, like this:
'git <command> [<revision>...] -- [<file>...]'
我最后通过以下命令解决了这个问题 - 基本上删除了我的整个/ usr / local文件夹并重新克隆了Homebrew的git repo，
Alex-Taipales-MacBook:Library alextaipale$ git remote -v
origin https://github.com/Homebrew/homebrew (fetch)
origin https://github.com/Homebrew/homebrew (push)
Alex-Taipales-MacBook:Library alextaipale$ cd /usr
Alex-Taipales-MacBook:usr alextaipale$ sudo rm -rf local
Password:
Alex-Taipales-MacBook:usr alextaipale$ sudo git clone https://github.com/Homebrew/homebrew.git
Cloning into 'homebrew'...
remote: Counting objects: 230841, done.
remote: Compressing objects: 100% (18/18), done.
remote: Total 230841 (delta 8), reused 10 (delta 7)
Receiving objects: 100% (230841/230841), 53.17 MiB | 716.00 KiB/s, done.
Resolving deltas: 100% (168934/168934), done.
Checking connectivity... done.
Alex-Taipales-MacBook:usr alextaipale$ sudo mv homebrew local
Alex-Taipales-MacBook:usr alextaipale$ sudo chown -R $(whoami) /usr/local