Ubuntu 16.04 I created a swap file using:
sudo mkdir -v /var/cache/swap
cd /var/cache/swap
sudo dd if=/dev/zero of=swapfile bs=1K count=4M
sudo chmod 600 swapfile
sudo mkswap swapfile
sudo swapon swapfile
echo "/var/cache/swap/swapfile none swap sw 0 0" | sudo tee -a /etc/fstab
After rebooting, i tested using
sudo swapoff swapfile
sudo swapon -va
Everything at this point seems to be fine. But after I ran ecrypt following the instruction here on the home folder, trying
sudo swapoff swapfile
swapoff: swapfile: swapoff failed: No such file or directory
Also, when I do:
sudo swapon -va
swapon: cannot open /dev/mapper/cryptswap1: No such file or directory
At this point, I'm attempting to just remove this swapfile that I just created. I tried to stop it by going straight to /var/cache/swap and try swapoff:
/var/cache/swap$ sudo swapoff swapfile
swapoff: swapfile: swapoff failed: Invalid argument
Why the invalid argument? I just want to know if it's safe to just manually remove the manually-created swap directory without swapoff, and then make an encrypted swapfile. Thanks.
