35.3 Adding Additional Space to a Volume Group from the Command-Line

Just as with the previous steps to gather information about the current Logical Volume Management configuration of an Ubuntu system, changes to this configuration can be made from the command-line.

In the remainder of this chapter we will assume that a new disk has been added to the system and that it is being seen by the operating system as /dev/sdb. We shall also assume that this is a new disk that does not contain any existing partitions. If existing partitions are present they should be backed up and then the partitions deleted from the disk using the fdisk utility. For example, assuming a device represented by /dev/sdb containing one partition as follows:

# fdisk -l /dev/sdb

Disk /dev/sdb: 10 GiB, 10737418240 bytes, 20971520 sectors

Units: sectors of 1 * 512 = 512 bytes

Sector size (logical/physical): 512 bytes / 512 bytes

I/O size (minimum/optimal): 512 bytes / 512 bytes

Disklabel type...