I don't understand, how do I have a separate /boot partition or not?

alex@me:~$ sudo fdisk -l



Disk /dev/sda: 1000.2 GB, 1000204886016 bytes

255 heads, 63 sectors/track, 121601 cylinders, total 1953525168 sectors

Units = sectors of 1 * 512 = 512 bytes

Sector size (logical/physical): 512 bytes / 4096 bytes

I/O size (minimum/optimal): 4096 bytes / 4096 bytes

Disk identifier: 0x000a1bc4



   Device Boot      Start         End      Blocks   Id  System

/dev/sda1   *        2048  1506224127   753111040   83  Linux

/dev/sda2      1946028030  1953523711     3747841    5  Extended

Partition 2 does not start on physical sector boundary.

/dev/sda3      1506224128  1946025983   219900928    7  HPFS/NTFS/exFAT

/dev/sda5      1946028032  1953523711     3747840   82  Linux swap / Solaris



Partition table entries are not in disk order

alex@me:~$ sudo df -h

Filesystem      Size  Used Avail Use% Mounted on

/dev/sda1       707G  273G  399G  41% /

none            4.0K     0  4.0K   0% /sys/fs/cgroup

udev            1.8G   12K  1.8G   1% /dev

tmpfs           353M  908K  352M   1% /run

none            5.0M     0  5.0M   0% /run/lock

none            1.8G  760K  1.8G   1% /run/shm

none            100M   28K  100M   1% /run/user