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I went through this forum post, and found out that it is possible to install a swap partition after installation of the OS. I just wanted a guide as to how I should do it so as to have it done safely and neatly. Do I first free up space equal to 4000MB (my RAM size) from my Windows 8 installation drive and simply format the new free space to a linux-swap? How exactly do I then bind it to /etc/fstab? Do I use the terminal and run: sudo update-initramfs -u first, and then update the UUID using the commands shown in that thread? Also, can I include the previously "unallocated" and "unknown" partitions on my disk in the swap partition? Please help.

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UserName
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2 Answers2

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You probably want to look at this question: Creating a Dedicated swap hard drive

You won't have to use a partition for swap, a swap file is totally fine, no performance penalty at all. See the abovementioned question, use fallocate or dd to create a swap file and swapon to use it. To make it survive reboots, add it to /etc/fstab.

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Terry Wang
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I found this thread helpful, especially the last suggestion. http://ubuntuforums.org/showthread.php?t=1796024 . I ran a boot repair which made the GRUB my default boot manager. That has made things a lot easier now. My swap gets turned automatically on, unlike previously when I had to use swapon to turn it on.

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