gdisk MBR

root@mordor:~#
root@mordor:~# sudo gdisk -l /dev/sdb
GPT fdisk (gdisk) version 1.0.8

Warning! Read error 5; strange behavior now likely!
Partition table scan:
  MBR: MBR only
  BSD: not present
  APM: not present
  GPT: not present


***************************************************************
Found invalid GPT and valid MBR; converting MBR to GPT format
in memory.
***************************************************************

Disk /dev/sdb: 4096000000 sectors, 15.3 TiB
Model: SSD
Sector size (logical/physical): 4096/4096 bytes
Disk identifier (GUID): D66BDBF4-299F-423F-A31B-A3BB0B27EBC7
Partition table holds up to 128 entries
Main partition table begins at sector 2 and ends at sector 5
First usable sector is 6, last usable sector is 4095999994
Partitions will be aligned on 256-sector boundaries
Total free space is 4095999989 sectors (15.3 TiB)

Number  Start (sector)    End (sector)  Size       Code  Name
root@mordor:~#