chown: /usr/local: 不允许操作 - brew update 问题 /usr/local 不可写 - MacOS 10.13.1 high sierra

Question

我无法进行 brew update 因为我无法 chown /usr/local：

$ brew update
Error: /usr/local is not writable. You should change the ownership
and permissions of /usr/local back to your user account:
  sudo chown -R $(whoami) /usr/local

基于此：https : //github.com/Homebrew/brew/issues/385

我尝试了这两个 chown 命令，但没有用：

$ sudo chown -R $(whoami) $(brew --prefix)
chown: /usr/local: Operation not permitted


$ sudo chown -R $(whoami) /usr/local
chown: /usr/local: Operation not permitted

这是我的/usr/local清单：

$ cd /usr/local
$ ls -al
total 56
drwxr-xr-x 23 root wheel 736 Dec 2 15:24 .
drwxr-xr-x@ 9 root wheel 288 Oct 26 00:22 ..
-rw-r--r-- 1 megasap wheel 0 Dec 2 15:11 .com.apple.installer.keep
drwxr-xr-x 16 megasap admin 512 Jan 11 14:08 .git
drwxr-xr-x 5 megasap admin 160 Dec 2 15:24 .github
-rw-r--r-- 1 megasap admin 1112 Aug 11 2016 .gitignore
-rw-r--r-- 1 megasap admin 253 Aug 11 2016 .travis.yml
-rw-r--r-- 1 megasap admin 291 Aug 11 2016 .yardopts
-rw-r--r-- 1 megasap admin 3161 Aug 11 2016 CODEOFCONDUCT.md
drwxr-xr-x 35 megasap admin 1120 Jan 11 11:35 Cellar
-rw-r--r-- 1 megasap admin 1241 Jan 26 2016 LICENSE.txt
drwxr-xr-x 9 megasap admin 288 Dec 2 15:25 Library
-rw-r--r-- 1 megasap admin 5451 Aug 11 2016 README.md
drwxr-xr-x 262 megasap admin 8384 Jan 11 23:09 bin
drwxr-xr-x 11 megasap admin 352 Dec 2 15:25 etc
drwxr-xr-x 57 megasap staff 1824 Dec 2 15:25 include
drwxr-xr-x 102 megasap staff 3264 Dec 2 15:25 lib
drwx------ 4 megasap wheel 128 Dec 2 15:24 libexec
drwxr-xr-x 3 megasap admin 96 Dec 2 15:23 n
drwxr-xr-x 34 megasap admin 1088 Dec 2 15:25 opt
drwxr-xr-x 8 megasap admin 256 Dec 2 15:24 sbin
drwxr-xr-x 16 megasap admin 512 Dec 2 15:25 share
drwxr-xr-x 8 megasap admin 256 Dec 2 15:25 var

我正在使用 macOS 10.13.1 高山脉。

Answer 1

重新安装 Homebrew 对我有用

/usr/bin/ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)"

Answer 2

您可能想尝试：

sudo chown -R $(whoami) $(brew --prefix)/*

更多信息请参见：https : //github.com/Homebrew/brew/issues/3228

Answer 3

使用https://github.com/Homebrew/install卸载并安装 Homebrew