# fdisk /dev/sdb

Welcome to fdisk (util-linux 2.40.2).
Changes will remain in memory only, until you decide to write them.
Be careful before using the write command.

This disk is currently in use - repartitioning is probably a bad idea.
It's recommended to umount all file systems, and swapoff all swap
partitions on this disk.


Command (m for help): p

Disk /dev/sdb: 1.86 TiB, 2048408248320 bytes, 4000797360 sectors
Disk model: SSD 2TB
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: gpt
Disk identifier: 048CE988-0965-834F-A59E-E5609DE718CB

Device          Start        End    Sectors  Size Type
/dev/sdb1        2048    2099199    2097152    1G EFI System
/dev/sdb2     2099200  102762495  100663296   48G Linux swap
/dev/sdb3   102762496 1780484095 1677721600  800G Linux root (x86-64)
/dev/sdb4  1780484096 4000796671 2220312576    1T Linux filesystem