Urgent help needed plz-instl XPS laptop

[R0Y_G_B1V]

I'm trying to install Ubuntu on 10GB of what the Ubuntu partitioner supposedly calls "free space", I select that partition, hit "new partition", make it mount point "/", and make it the size so I have 256MB left over. So it's about 10,480MB, then, the 256MB comes up after that as unusable space, what gives? Here's the list of all my partitions....this is on a Dell XPS 1330 with a 64GB SSD and the recovery disk has been formatted which is what the 10GB free space is.

Device Type Mount Point Size Used
/dev/sda
/dev/sda1 fat16 /media/sda1 90MB 33MB
free space 10,738MB
/dev/sda2 ntfs /media/sda2 50,508MB 14,700MB
/dev/sda5 fat32 /media/sda5 2683MB 749MB

[Partyboi2]

You can only have 4 primary partitions, so what happens if you make the 10,738MB as a extended partition then create the partitions you want?

[housam]

I'm trying to install Ubuntu on 10GB of what the Ubuntu partitioner supposedly calls "free space", I select that partition, hit "new partition", make it mount point "/", and make it the size so I have 256MB left over. So it's about 10,480MB, then, the 256MB comes up after that as unusable space, what gives? Here's the list of all my partitions....this is on a Dell XPS 1330 with a 64GB SSD and the recovery disk has been formatted which is what the 10GB free space is.

Device Type Mount Point Size Used
/dev/sda
/dev/sda1 fat16 /media/sda1 90MB 33MB
free space 10,738MB
/dev/sda2 ntfs /media/sda2 50,508MB 14,700MB
/dev/sda5 fat32 /media/sda5 2683MB 749MB

Boot from the live CD and type in a terminal :

sudo fdisk -l
where -l is a small L and post the results to give us a clear vision about your partitions.