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Ubuntu: Create swap partition

A swap file allows an operating system to use hard disk space to simulate extra memory.

$ sudo fallocate -l 2G /swapfile
$ sudo chmod 600 /swapfile
$ sudo mkswap /swapfile
$ sudo swapon /swapfile
Create swap file
Create swap file
Make swapfile permanent
Adjust the swappiness property
Adjust the swappiness property

Make swap partition on Debian 10 VM micro.f1 running on GCP

tuyen@gcpfreetier-vm1:~$ sudo fallocate -l 1G /swapfile
tuyen@gcpfreetier-vm1:~$ sudo dd if=/dev/zero of=/swapfile bs=1024 count=1048576
tuyen@gcpfreetier-vm1:~$ sudo chmod 600 /swapfile 
tuyen@gcpfreetier-vm1:~$ sudo mkswap /swapfile 
tuyen@gcpfreetier-vm1:~$ sudo swapon /swapfile

Then edit /etc/fstab file: add to the end of file

...
/swapfile swap swap defaults 0 0

Finally, run sudo mount -a

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