I tried to install Phusion Passenger and since I had less than 1GB free memory it recommended temporarily adding swap space with there commands:

sudo dd if=/dev/zero of=/swap bs=1M count=1024
sudo mkswap /swap
sudo swapon /swap

Passenger installed successfully so do I now have to disable that swap space - how? It didn't say anything about reverting but I think it should because it said "temporarily add swap space". How do I negate this effect now?


It's up to you whether you want to disable it or not. If you do nothing else, it'll be gone if/when you reboot. If you want it permanent, you'll have to add it to /etc/fstab. If you do want to disable it:

sudo swapoff /swap
  • 1
    In either case, you can and should reclaim the disk space with rm /swap once the swap is disabled (by reboot or swapoff). – Falcon Momot Jul 31 '13 at 22:35

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