20.04.1, problem switching from swap partition to /swapfile

Well, it's fixed.

When I tried to do a sudo swapoff -a, it gave me a parse error on the following line in my /etc/fstab...

/swapfile    none    swap    sw      0   0

I retyped the line, and made sure to use spaces...

/swapfile  none  swap  sw  0  0

Do you see any difference?

And now it all works!

Thanks for all of the good feedback here!