I am currently doing some Virtualisation lab works in which I need to run Virtual Machines on Xen hypervisor.
I need to create Logical Volumes on Volume Groups.
I can create a new Volume Group using the command
"vgcreate vgpool /dev/sda1"
While executing this, I am getting error saying that the partition is already mounted. However "/sda1" being my root partition, I cannot unmount it. I can create volume groups on partitions other than the root partition.
My questions are 1) Is there a way, I can add my root partition to a Volume Group? 2) If not, how can I create logical volumes inside the root partitions, using commands like below? (I cannot do this now since I dont know what should I substitute in place of the VolumeGroupName)
"lvcreate -L 3G -n LogicalVolumeName VolumeGroupName"