Steps for installing Linux and Windows 8 with a multi boot manager.

Tested on a notebook  with the following characteristics:

MOTHERBOARD 
[DEBIAN] To see this info write in terminal:  
1. sudo apt-get install demidecode 
2. sudo demidecode --type baseboard

Manufacturer: Sony Corporation
Product Name: VAIO
                     
PROCESSOR 
[DEBIAN] To see this info write in terminal: 
1. cat /proc/cpuinfo

Manufacturer: GenuineIntel 
Model: Intel(R) Core(TM)2 Duo CPU P754  @ 2.13 Ghz  

MEMORY
[DEBIAN] To see this info write in terminal:
1. free

Installed: 4 GB RAM 

HARD DRIVE
[DEBIAN] To see this info write in terminal:
1. lshw -class disk 

Description: ATA Disk
Product: WDC WD3200BPVT-0
Vendor: Western Digital
Serial: WD-WXS1E62NUKZ7
Size: 298GiB (320GB)

LINUX DISTRIUTION NAME AND VERSION 
[DEBIAN] To see this info write in terminal:
1. cat /etc/*-release

DISTRIB_ID=LinuxMint [KDE]
DISTRIB_RELEASE=17
DISTRIB_CODENAME=qiana
DISTRIB_DESCRIPTION="Linux Mint 17 Qiana"

STEPS FOR INSTALLING WINDOWS 8 AND LINUX. 

Windows 8 Installation 
Instructions for installing Windows 8 are taken from the following source. All rights belong to: 
http://www.buildeasypc.com/sw/windows_8/install_windows_8.htm

1.  Install Windows 8 OS following the above steps

* with the windows 8 operating system already installed

2. Enter to Windows Disk Management 
* There are several ways to access. I will explain 2 only

Step 1 of 2

» Press Win button + R  write 'diskmgmt.msc' and press ENTER

Step 2 of 2

Open the "Control Panel" over:

» Press Win button + R  write 'control panel' and press ENTER  
» »  in  "Control Panel"

»»»  "Administrative Tools"

» »»»   "Computer Management"

»»»»» "Disk-Management"

* Disk-Manager looks like:

3. Select the hard disk [Single Partition] where it was installed the windows 8 operating system and press right click.

4. Click on Shrink Volume  

5. In the box where says 'Enter the amount of space to shrink in MB ' specify the size of the space you want to use for linux. 

* in this example I will use  29944 MBs for my unpartitioned space that will serve to install my distro of linux* Disk-Manager looks like:

6. Click Shrink

* Disk-Manager looks like:

7. Restart Windows 

Ubuntu Linux Installation 

8. Insert the DVD or memory with Linux

9. Boot into Ubuntu installation media. CD or USB stick

* There are 2 ways to install ubuntu.

a. Install ubuntu alongside Windows 8

In this case (a) select this option and follow the steps. 

b. Manual 

10. Select 'Something else'

11. Creating partition for swap.

Select free space and click +

select the following parameters:

Size: 512 MB

Type of new partition: Primary

Location for the new partition: Beginning of this space

Use as: Swap Area

Click 'OK'.

12. Creating partition / (root filesystem). 

Size: 20000 MB (*This is an Example. This size depends on the size of the hard drive)

Type of new partition: Logical

Location for the new partition: Beginning of this space

Use as: Ext4 journaling file system

Mount Point: / 

13. Creating partition /home.  

Size: 65368 MB 

Type of new partition: Logical

Location for the new partition: Beginning of this space

Use as: Ext4 reiserfs file system

Mount Point: /home 

13. Click 'Install Now' and follow the instructions. 

14. The system boots as follows:

15. Select the OS of your preference and press ENTER.

CONFIGURATION OF GRUB BOOTLOADER WITH GRUB-CUSTOMIZER

* GRUB CUSTOMIZER is a graphical settings manager for GRUB2 and BURG. With this program we can tell the system which OS you want to load by default.

To install and use this program follows these steps: 

16. Boot in the installed linux 

17. Open Terminal 

18. sudo add-apt-repository ppa:danielrichter2007/grub-customizer

19. sudo apt-get update

20. sudo apt-get install grub-customizer 

21. grub-customizer

List configuration: Allows you to change the position of the operating system on the boot menu. 

General settings:  Allows you to set the sequence of execution of the operating systems installed on the system.

Appearance settings:  Used to configure the appearance of boot loader.

Configure and enjoy the two operating systems!