Install elementary OS in dual boot with 'something else' option

Question

How to install elementary OS using the 'Something else' option at the partitioning step.

Answer 1

Note : This can also be used to reinstall elementary OS. To reinstall skip the partition steps.

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Partitoning :

Before using something else option allocate space to install elementary OS.

Open Gparted then select partiton you want to allocate for elementary OS. Right click --> Delete.

Step1: Now right click on the partition --> New --> extended partition. and ext4 File system.

Step2 : Make Partitions for swap, /root and /home.

Now Right click on the /sda2 and select Resize/Move

Here -- sda2 extended

   sda5 format swap - 
   sda6 format ext4 - 
   sda7 format ext4 -

Note:

1. You can choose swap size same as size of your RAM. Generally 4GB swap is enough.

2. 20 GiB is enough for /root.

   See system specifications, at least 15 GB of disk space needed.

3. /home is the filesystem for your user's files: documents, images, music and videos

   

Now your partition table similar to like this:

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Installation:

Now start installing and then select something else option.

Now,

select /sda5 --> click on change button (at left corner) you will see popup like this:

Now click on drop down button select swap area.

Similarly for /sda6 and /sda7 select ext4 / and ext4 /home respectively.

Now click on Install Now