resize2fs

CautionResize ext filesystems

resize2fs <dev>

Grows the filesystem to match an enlarged partition/LV — online for growth; shrink needs unmount.

Examples

lvextend -L +20G /dev/vg0/data && resize2fs /dev/vg0/dataGrow FS after LV extend

Syntax

resize2fs <device> [size]

Before you run it

Shrinking carelessly destroys data.

Related commands

lvextendExtend logical volumes
partedGPT-aware partitioning
dfDisk free space

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