# LVM

## reduce logical volume

You must get a blank output from this command as below

`lsof /home`

Next un-mount the partition
`umount /home`

check filesystem
`e2fsck -flinux show file syste /dev/mapper/arch-home`

resize file system
`resize2fs /dev/mapper/arch-home 20G`

reduce logical volume

`lvreduce /dev/mapper/arch-home -L 20G`

## increase logical volume

`lvextend -L +44G /dev/mapper/arch-root`

`resize2fs /dev/mapper/arch-root`