# fdisk -l /dev/sda
Disk /dev/sda: 465.8 GiB, 500107862016 bytes, 976773168 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disklabel type: dos
Disk identifier: 0xa1b291d9

Device     Boot   Start       End   Sectors   Size Id Type
/dev/sda1          2048      6143      4096     2M 83 Linux
/dev/sda2  *       6144    268287    262144   128M 83 Linux
/dev/sda3        268288   1316863   1048576   512M 83 Linux
/dev/sda4       1316864 976771215 975454352 465.1G 83 Linux