Q: How to restore disk to unique partition from terminal?

Hi,

I have had a triple-boot for about a year (Mac Os X Lion, Win7, Ubuntu) but recently something wrong happened.

When trying to boot it as do normally and select the OS that i wanted i got a blinking question mark Folder instead.

I then tried to reinstall Mac Os from which i couldn't even boot (cmd + R) 

the " Select the disk where you want to install Mac Os X" box was empty.

I then went to "Diskutility" but couldn't erase, verify or restore the Disk image  or Startup Disk that are the only two icons to appear on the left-hand side.

In the "Partition" tab only one partition is visible, that of the Startup Disk "Mac OS Base System".

In Terminal,

diskutil list

/dev/disk0

   #:                       TYPE NAME                    SIZE       IDENTIFIER

   0:     Apple_partition_scheme                        *1.4 GB     disk0

   1:        Apple_partition_map                         30.7 KB    disk0s1

   2:         Apple_Driver_ATAPI                         2.0 KB     disk0s2

   3:                  Apple_HFS Mac OS X Base System    1.4 GB     disk0s3

/dev/disk1

   #:                       TYPE NAME                    SIZE       IDENTIFIER

   0:                            untitled               *524.3 KB   disk1

/dev/disk2

   #:                       TYPE NAME                    SIZE       IDENTIFIER

   0:                            untitled               *524.3 KB   disk2

/dev/disk3

   #:                       TYPE NAME                    SIZE       IDENTIFIER

   0:                            untitled               *524.3 KB   disk3

/dev/disk4

   #:                       TYPE NAME                    SIZE       IDENTIFIER

   0:                            untitled               *524.3 KB   disk4

/dev/disk5

   #:                       TYPE NAME                    SIZE       IDENTIFIER

   0:                            untitled               *524.3 KB   disk5

/dev/disk6

   #:                       TYPE NAME                    SIZE       IDENTIFIER

   0:                            untitled               *6.3 MB     disk6

/dev/disk7

   #:                       TYPE NAME                    SIZE       IDENTIFIER

   0:                            untitled               *2.1 MB     disk7

/dev/disk8

   #:                       TYPE NAME                    SIZE       IDENTIFIER

   0:                            untitled               *1.0 MB     disk8

/dev/disk9

   #:                       TYPE NAME                    SIZE       IDENTIFIER

   0:                            untitled               *524.3 KB   disk9

/dev/disk10

   #:                       TYPE NAME                    SIZE       IDENTIFIER

   0:                            untitled               *524.3 KB   disk10

/dev/disk11

   #:                       TYPE NAME                    SIZE       IDENTIFIER

   0:                            untitled               *1.0 MB     disk11

How can i restore my disk to a single OS X partition in terminal as diskutility won't let me do anything and wiping out the whole drive seems to be my only option to finally use my laptop? I have tried with no luck

Thank you