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root@ubuntu:/home/ubuntu# gdisk -l /dev/sda
GPT fdisk (gdisk) version 0.6.14

Partition table scan:
  MBR: protective
  BSD: not present
  APM: not present
  GPT: present

Found valid GPT with protective MBR; using GPT.
Disk /dev/sda: 625142448 sectors, 298.1 GiB
Logical sector size: 512 bytes
Disk identifier (GUID): A217C715-475A-469E-91E7-D13BD6A25CAF
Partition table holds up to 128 entries
First usable sector is 34, last usable sector is 625142414
Partitions will be aligned on 2048-sector boundaries
Total free space is 6108 sectors (3.0 MiB)

Number  Start (sector)    End (sector)  Size       Code  Name
   1            2048          411647   200.0 MiB   EF00  EFI System
   2          411648         4194304   1.8 GiB     8200  Linux swap
   3         4196352        20971520   8.0 GiB     FFFF  Linux filesystem
   4        20973568       625142414   288.1 GiB   FFFF  Linux filesystem