breitling 809 green.vs brown tritium|The Best Perpetually Glowing Tritium Watches Growing Logical Volumes. To increase the size of a logical volume, use the lvextend command. When you extend the logical volume, you can indicate how much you want to extend the volume, or how large you want it to be after you extend it. The following command extends the logical volume /dev/myvg/homevol to 12 gigabytes. Subscribe