lvextend
increases the size of a logical volume in LVM
TLDR
Extend to absolute size
$ sudo lvextend -L 120G logical_volume
Extend by relative size$ sudo lvextend -L +40G -r logical_volume
Use all free space$ sudo lvextend -l +100%FREE logical_volume
Extend and resize filesystem$ sudo lvextend -l +100%FREE -r logical_volume
SYNOPSIS
lvextend [OPTIONS] LogicalVolume
DESCRIPTION
lvextend increases the size of a logical volume in LVM. It can extend by an absolute size, relative size, or percentage of available space. The underlying filesystem can be resized automatically.
PARAMETERS
-L, --size size
Specify new absolute size or relative increase (+size)-l, --extents extents
Specify size in extents or percentage (%VG, %FREE, %PVS)-r, --resizefs
Automatically resize the underlying filesystem-n, --nofsck
Skip filesystem check before resize--use-policies
Use thin pool autoextend policies
CAVEATS
Ensure sufficient free space in the volume group. The filesystem resize with -r only works for ext2/3/4 and XFS. For other filesystems, manual resize is required after extending. XFS can only grow, not shrink.
HISTORY
lvextend is part of LVM2, the Linux Logical Volume Manager, providing dynamic storage management.