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Add lab env setup info for MAC OS  from https://github.com/altkatz
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uuyych committed Mar 15, 2015
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Expand Up @@ -41,7 +41,7 @@ uCore OS Labs是用于清华大学计算机系本科操作系统课程的教学


## 实验环境
ucore OS实验主要在Linux环境下开发,有如下四种方法
ucore OS实验主要在Linux环境下开发,有如下种方法

### 一、[在线实验--基于"实验楼"在线平台](http://www.shiyanlou.com/courses/221)
特点:不用在本机配置环境或安装虚拟机,你需要的是可以可以上网的网络浏览器,实验都可在网上完成!感谢[实验楼](http://www.shiyanlou.com/)提供的支持!
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建议a: 设置虚拟硬盘的大小为8GB以上,虚拟内存在1B以上。
建议b: 如果你的机器安装的是32位的windows,则下载32位的ubuntu 14.04 32bit img镜像。

### 四、手动在物理PC中安装环境

### 四、在MAC OS下进行实验

Using gcc49

#### 1.install [homebrew](http://brew.sh/)

#### 2.install binutils, gcc, gdb targeting i386-elf

* `brew tap altkatz/homebrew-gcc_cross_compilers`
* `brew install i386-elf-gcc` # may take an hour
* `brew install i386-elf-gdb`

#### 3. install qemu-system-i386

* `brew install qemu`

### 五、手动在物理PC中安装环境


-------------------------------------
特点:性能最好,但安装有一定难度,需要对Linux比较熟悉

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