fsadm

LVM filesystem management utility

TLDR

Check filesystem for errors

$ fsadm check /dev/vg_name/lv_name

Dry-run resize to specific size

$ fsadm -n resize /dev/vg_name/lv_name 10G

Grow filesystem to fill device

$ fsadm resize /dev/vg_name/lv_name

Resize filesystem and logical volume together

$ fsadm -l resize /dev/vg_name/lv_name 100G

Resize ext2/3/4 offline

$ fsadm -e resize /dev/vg_name/lv_name 20G

SYNOPSIS

fsadm [options] check devicefsadm [options] resize device [newsize]

DESCRIPTION

fsadm checks or resizes filesystems on LVM logical volumes. It is a helper script that wraps filesystem-specific tools like resize2fs, xfs_growfs, and fsck.

PARAMETERS

check

Check filesystem for errors

resize

Resize filesystem (grow or shrink)

-n, --dry-run

Print what would be done without making changes

-l, --lvresize

Resize the underlying logical volume as well

-e, --ext-offline

Unmount ext2/3/4 filesystem and resize offline

-f, --force

Force operation without confirmation

-v, --verbose

Verbose mode

-y, --yes

Answer yes to all prompts

INSTALL

sudo apt install lvm2

sudo dnf install lvm2

sudo pacman -S lvm2

sudo apk add lvm2-extra

sudo zypper install lvm2

nix profile install nixpkgs#lvm2

If no size is specified with resize, the filesystem will be grown to fill the entire device. Shrinking filesystems requires careful planning and may require unmounting. Not all filesystems support shrinking (e.g., XFS).

HISTORY

fsadm is part of LVM2, providing a unified interface for filesystem operations on logical volumes regardless of the underlying filesystem type.