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I downgraded my system from 13.04 to 12.04, and in the processes messed up cryptswap.

Each time i booted, i would get a warning about cryptswap not being there, so I deleted cryptswap using a tutorial i found here

and added a swap partition using tutorial here

now, the system recognizes that I have a swap partition, but does not load it. This is my understanding. My Boot-Info details are here Boot info

How do i get the computer to recognize the swap partition?

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You need to edit /etc/fstab and add an entry for your new swap partition

Modify the line:

UUID=4b1e51e4-03f2-447f-94a8-6890006b7ef7  none swap sw 0 0

remove (comment out) the other line

#/dev/sda7 none swap sw 0  0

Save the changes and run swapon

sudo swapon

Post any error messages you have.

See also:

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