I use Ubuntu 20.04 LTS which I installed dual boot to Windows. I wanted to add Hibernation as an option. So I installed pm utilities and tried sudo pm-hibernate It did not work. I read somewhere that the swap file should be equal to the size of my RAM. My RAM is 8 GB and my swap file was 1.4 GB (default). I hadn't tampered with anything earlier when I had installed Ubuntu.
Then after looking up, I followed THIS. And I did everything exactly up until about 7 steps where it says to "reboot".
Steps include - doing swapoff -a, adding a # against a UUID in the existing swap file. Creating an 8GB swap file using sudo fallocate -l 8G /swapfile
sudo mkswap /swapfile
sudo chmod 0600 /swapfile
sudo swapon /swapfile
And then I hit reboot. Then it boots to get stuck at HP logo (Ubuntu at the bottom). I tried hard shud down and booting again. It again gets frozen at HP logo.
Did mess anything up? How do I go ahead and fix this?
P.S - I must mention that there were 3 UUID's in the file. I didnt know which one to add a # to. Then I looked up how search for my UUID of the swap file and found my UUID and then hashed only that one.