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  MacBook Air install Ubuntu dual system
     
  Add Date : 2017-04-13      
         
       
         
  MacBook Air is recognized as one of the best laptops, many people buy it after installation of Windows, because Windows can not find a better machine, and now someone brought installed Ubuntu, and are interested can refer to.

To install on MacBook Air ubuntu dual system, first download the Ubuntu install image file, the download version is Ubuntu 14.04 LTS, code-named Trusty Tahr. Use the Ubuntu boot USB disk produced by U disk, on your MacBook Air to convert image file format to ISO format dmg.

hdiutil convert /path/to/ubuntu.iso -format UDRW -o /path/to/ubuntu.dmg

U insert a blank disk, run the following command to check the serial numbers of your

diskutil list

Run the following command to change the number N of your U disk, usually 2 or 1.

diskutil unmountDisk / dev / diskN

Run the following command to change the number N of your U disk.

sudo dd if = / path / to / ubuntu.dmg of = / dev / rdiskN bs = 1m

Exit U disk, the number N into your U disk

diskutil eject / dev / diskN

Ready to install U disk use, you also need to set aside a partition on the hard disk to use ubuntu, you can use the system comes with disk tools, or BootCamp segmentation. Insert U disk to restart the Mac, hold down the Option key at boot time and hold until the disk selection so far. Select the EFI boot the boot entry, select after entering the try ubuntu, ubuntu into the trial mode. After that you can install as usual. After installation, be careful not to press the restart button and choose to continue to try ubuntu, we have to solve the boot problem, otherwise it is impossible to enter the restart of ubuntu. Then execute the following command to fix the boot.

sudo apt-get install efibootmgr

sudo efibootmgr

sudo efibootmgr -o 0,80

Then you can restart. You can enter reboot ubuntu, but also need to continue to repair, otherwise they will not get into Mac OS X.

sudo gedit /etc/grub.d/40_custom

In the displayed text and finally adding the following lines.

menuentry "Mac OS X" {

exit

}

So far the system has been installed, but if you like I can not link a wireless network, please perform the following procedure. To the official website to download the wireless network card driver.

bcmwl-kernel-source

Also download dependent packages dkms. U disk with these two kits, copied to your ubuntu system installed, you can double-click to install, remember to install dkms. Finally, there is an annoying problem, enter each boot ubuntu, will find the screen brightness and keyboard backlight brightness values are open to the maximum, you can set according to this method.

sudo gedit /etc/rc.local

Then the following added.

echo 1200> / sys / class / backlight / gmux_backlight / brightness

echo 25> / sys / class / leds / smc :: kbd_backlight / brightness

exit 0

Which echo the latter figure is the brightness value can be adjusted according to their own needs. At this point you already have a more perfect system of ubuntu.
     
         
       
         
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