1.将镜像文件挂，如/mnt
# mount -o loop rhel-server-6.1-x86_64-dvd.iso /mnt
#这一步其实有很多实现方法,如可以将镜像文件中的Packages文件夹,复制系统的某个文件夹

2.将路径指定到如下:
# cd /mnt/Packages
#如果是通过其他方法,就将路径指定到对应位置 

3.安装gcc，软件安装顺序不能错

# 最关键的一步很多人都卡死在这里,[X]表示会变化的.最好的办法就是在遇到[X]之前按下键盘的[Tab]键让系统帮你找对应的.

# rpm -ivh glibc-common-X.XX-X.XX.el6.x86_64.rpm

# rpm -ivh kernel-headers-X.X.XX-XXX.X.XX.el6.x86_64.rpm

# rpm -ivh libgcc-X.X.X-X.el6.x86_64.rpm

# rpm -ivh glibc-X.XX-X.XX.el6.x86_64.rpm

# rpm -ivh libgomp-X.X.X-X.el6.x86_64.rpm

# rpm -ivh nscd-X.XX-X.XX.el6.x86_64.rpm

# rpm -ivh glibc-headers-X.XX-X.XX.el6.x86_64.rpm

# rpm -ivh glibc-devel-X.XX-X.XX.el6.x86_64.rpm

# rpm -ivh mpfr-X.X.X-X.el6.x86_64.rpm

# rpm -ivh ppl-X.XX.X-11.el6.x86_64.rpm

# rpm -ivh cloog-ppl-X.XX.X-X.X.el6.x86_64.rpm

# rpm -ivh cpp-X.X.X-X.el6.x86_64.rpm

# rpm -ivh gcc-X.X.X-X.el6.x86_64.rpm

4.安装gcc-c++

# rpm -ivh libstdc++-4.4.5-6.el6.x86_64.rpm

# rpm -ivh libstdc++-devel-4.4.5-6.el6.x86_64.rpm

# rpm -ivh gcc-c++-4.4.5-6.el6.x86_64.rpm

5.中文版的系统会出现乱码

#请自行百度

#提示:export LANG=en_US_UTF-8