Create a Logical Volume Group

B.

The correct command to create a logical volume group (VG) on Linux is vgcreate. Therefore, option B is the correct answer.

Here is a brief explanation of the command and its usage:

vgcreate is a Linux command that is used to create a new volume group on a Linux system. A volume group is a collection of physical volumes (PVs) that are combined to form a logical storage space. Once a volume group is created, logical volumes (LVs) can be created within it, and file systems can be created on those logical volumes.

To use the vgcreate command, you need to specify the name of the volume group you want to create and the physical volumes that will be part of the group. Here is the basic syntax of the command:

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vgcreate [options] VG_NAME PVs 

Here, VG_NAME is the name you want to give to the volume group, and PVs is a space-separated list of the physical volumes that will be part of the group. The [options] section can be used to specify additional options, such as the size of the volume group or the metadata type to use.

For example, if you want to create a new volume group called myvg that includes two physical volumes /dev/sdb and /dev/sdc, you would use the following command:

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vgcreate myvg /dev/sdb /dev/sdc 

This command would create a new volume group called myvg that includes the two physical volumes /dev/sdb and /dev/sdc. Once the volume group is created, you can create logical volumes within it using the lvcreate command and create file systems on those logical volumes using commands like mkfs.xfs.