Hi
Actually her question brings up an interesting point. Suppose this needed to be done in a big corporation where it is necessary to maintain some level of service and the question of scalability is a very important one.
They would prefer some means of doing the same adding disks to the system to allow for greater storage with minimal disruption. It would be really costly if they had to resort to something like copy everything and then resize.
That is what LVM is for.[This wouldn't help OP, because her existing partitions would need to already be LVM for this to help her]
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