how_to_create_partitions_over_2tb_on_linux.markdown

How to create partitions over 2TB on Linux

NOTE: This used to be a problem many years ago. Meanwhile it's not one anymore.

Problems

• fdisk and cfdisk (from the util-linux package in Debian) can't do it. They have overflows at 2TB.
  • fdisk refuses to do it
  • cfdisk claims to do it, but the overflow is visible after a restart of cfdisk
  • Citation: fdisk doesn't understand GUID Partition Table (GPT) and it is not designed for large partitions. In particular case use more advanced GNU parted(8).

Solutions

Install parted

How-To

Short

Use parted and GUID Partition Tables (GPT)

Step by step example

 # parted /dev/sdb
(parted) mklabel GPT
(parted) mkpart primary ext3 0 100%
(parted) name 1 vg01
(parted) set 1 lvm on
(parted) print

Disk /dev/sdb: 16.5TB
Sector size (logical/physical): 512B/512B
Partition Table: gpt

Number  Start   End     Size    File system  Name  Flags
 1      17.4kB  16.5TB  16.5TB               vg01  lvm

(parted) quit