GRUB双启动，屏幕的亮度调节，root下运行Chromium，chromium+goagent，vim配置文件，安装yaourt & Adobe Flash Player，totem解码补充安装

• GRUB双启动
  # vim /etc/grub.d/40_custom
  

  # (2) Windows 7
  menuentry "Windows 7" {
    set root="(hd0,1)"
    chainloader +1
  }

  Remember you need to point set root and chainloader to the system reserve partition that windows made when it installed, not the actual partition windows is on.
  这里hd0后面跟的数不是windows真实放置的分区，而是windows安装时的保留分区
  可以顺便修改下grub的timeout
  # vim /etc/default/grub
  最后刷入grub
  # grub-mkconfig > /boot/grub/grub.cfg
   
• 屏幕的亮度调节
  S1 通过修改X.org的配置文件使显卡对应的设置开启亮度调节的控制
         # vim /etc/X11/xorg.conf // if it doesn't exist, use "nvidia-xconfig" to generate
         在 Section "Device" 部分加入
          Option        "No Logo"
          Option        "RegistryDwords" "EnableBrightnessControl=1"
  S2 修改grub配置文件，使电源控制的背光调节跟随显卡的设置
          # vim /etc/default/grub
          将 “GRUB_CMDLINE_LINUX = ” 后改为 “quiet splash acpi_backlight = vendor”
          重新刷一下grub
         # grub-mkconfig > /boot/grub/grub.cfg
   
• root下运行Chromium
  # pacman -S flashplugin  // 安装flash
  # vim /usr/bin/chromium
  在最后一行（exec /usr/lib/chromium..."$@")末(注意不是新行）加 “--user-data-dir”
   
• 允许Chromium的本地文件读取本地文件（不安全）
  
  同上，加 --allow-file-access-from-files
   
• chromium+goagent
  S1 部署goagent获得appid和password
  S2 # pacman -S goagent
  S3 # vim /etc/goagent 修改appid和password
  S4 导入证书：/usr/share/goagent/local/CA.crt
  Chromium -> settings -> high settings -> manage certificates -> Authorities
   -> import -> CA.crt (全部打钩）
  S5 google一下switchysharp，在chrome商店安装它
  S6 配置switchysharp：导入设置https://goagent.googlecode.com/files/SwitchyOptions.bak
  # systemctl start goagent 启动goagent
  # systemctl enable goagent 开机自启动goagent
   
• vim配置文件：史上最强vim配置文件
  # vim /etc/vimrc
   
• 安装yaourt
  # vim /etc/pacman.conf
  加上
  
  [archlinuxfr]
  SigLevel = Never
  Server = http://repo.archlinux.fr/$arch
   
• Install Adobe Flash Player
  S1: # yaourt -S chromium-pepper-flash-stable
  

  S2: Disable all other flash plugins:

  Type chrome://plugins/ in the adress bar and press Enter

  Click on Details button on the top right

  Click on Disable near all the Flash plugins except the Adobe

   
• totem解码补充安装
  当totem播放视频出现“The playback of this movie requires a H.264 decoder plugin which is not installed.”时
  # pacman -S gst-libav