What is the relation between Hibernate and Swap Memory?

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With the new HP 430 Notebook, hibernate was not working. Was getting a message that not enough swap for hibernate. Found from this Wiki that (swap memory >= RAM) for hibernate to work.
Since the HP 430 Netbook had enough RAM (4GB), I choose the swap to be 1GB at the time of Ubuntu installation and so hibernate was not working. Again the Wiki has instructions for increasing the size of the Swap.
So, it's better to choose enough swap at the time of the Ubuntu installation for hibernate to work.

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