Unable to hibernate: Swap header not found Closed

Question

I am using ubuntu 18.04 and I created a swap partition after installation of space 10GB using Gparted and included in fstab.
UUID=1504fc2a-05b3-4af6-9ea3-c44068e7aec5 /               ext4    errors=remount-ro 0       1/dev/sda4       none    swap    sw      0       0/swapfile                                 none            swap    sw              0       0
But I am unable to hibernate as it says no swap header found. What does this mean and how to solve this problem?

ac3mark · Answer

Does this help?
http://manpages.ubuntu.com/manpages/bionic/man8/mkswap.8.html

Unable to hibernate: Swap header not found

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