lvcreate

creates a logical volume in an existing volume group

TLDR

Create 10 GB volume

$ sudo lvcreate -L 10G vg1

Create named volume

$ sudo lvcreate -L 1500M -n mylv vg1

Use 60% of volume group

$ sudo lvcreate -l 60%VG -n mylv vg1

Use all free space

$ sudo lvcreate -l 100%FREE -n mylv vg1

lvcreate creates a logical volume in an existing volume group. Logical volumes are virtual block devices that can span multiple physical volumes and support features like snapshots, striping, and mirroring.

PARAMETERS

-L, --size size

Specify size (e.g., 10G, 1500M)

-l, --extents extents

Specify size in extents or percentage (%VG, %FREE, %PVS)

-n, --name name

Name for the logical volume

-s, --snapshot

Create a snapshot volume

-T, --thin

Create a thin pool or thin volume

--thinpool pool

Specify thin pool for thin volume

-m, --mirrors count

Create a mirrored volume

-i, --stripes count

Number of stripes for striped volume

INSTALL

sudo apt install lvm2

sudo dnf install lvm2

sudo pacman -S lvm2

sudo apk add lvm2

sudo zypper install lvm2

nix profile install nixpkgs#lvm2

CAVEATS

The volume group must have sufficient free space. Logical volume names must be unique within a volume group. After creation, a filesystem must be created on the LV before mounting.

HISTORY

lvcreate is part of LVM2, the Linux Logical Volume Manager.