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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。
brew 也有镜像源？嗯，确实有的，而且还不止一个：
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cd
/
usr
/
local
git
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
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cd
~
mkdir
tmp
cd
tmp
//以下要与你选择的镜像源相同
git
clone
git
:
//mirrors.tuna.tsinghua.edu.cn/homebrew.git
git
clone
http
:
//mirrors.ustc.edu.cn/homebrew.git
sudo
rm
-
rf
/
usr
/
local
/
.
git
sudo
rm
-
rf
/
usr
/
local
/
Library
sudo
cp
-
R
homebrew
/
.
git
/
usr
/
local
/
sudo
cp
-
R
homebrew
/
Library
/
usr
/
local
/
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如果你遇到如下问题：
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╰─?
brew
update
Stashing
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
.
1
fatal
:
Unable
to
create
‘/usr/local/.git/index.lock‘
:
Permission
denied
Cannot
save
the
current
index
state
Error
:
Failure
while
executing
:
git
stash
save
--
include
-
untracked
--
quiet
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那么就安照如下命令排错：
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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
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没了，运行 brew update 来愉快地更新吧！然后 brew upgrade 。
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原文地址：http://my.oschina.net/hejunbinlan/blog/516845
