[SOLVED] Need more swap

[bokiscout]

I need more swap space, the 1 GB is not enough for me:

System:
OS: Kubuntu 18.04 LTS (vanilla installation)
Encrypted SSD : YES, via the method provided in installation process
RAM: 16 GB
SWAP: 1GB

I take a look into /etc/fstab to eventually enlarge the swap file but I didn't come with a solution and I can't take risks since this is my work PC. I'm not sure if there is swap file or swap partition in use.

[Snowhog]

Show us your /etc/fstab file.

[oshunluvr]

When you get to it; this probably holds your answer:https://askubuntu.com/questions/1009...ting-swap-file

If you're using a swap partition you would probably already know it because you would have had to create one. The install defaults to a swap file starting in 16.04 (I think).

[bokiscout]

This is my /etc/fstab file:

# /etc/fstab: static file system information.
#
# Use 'blkid' to print the universally unique identifier for a
# device; this may be used with UUID= as a more robust way to name devices
# that works even if disks are added and removed. See fstab(5).
#
# <file system> <mount point>   <type>  <options>       <dump>  <pass>
/dev/mapper/kubuntu--vg-root /               ext4    errors=remount-ro 0       1
# /boot was on /dev/sda1 during installation
UUID=5689ed1a-ad80-4bcf-9435-f08191ef5c7f /boot           ext4    defaults        0       2
/dev/mapper/kubuntu--vg-swap_1 none            swap    sw              0       0

I guess it is a swap file but.. configuration looks different on encrypted drive, even the partition scheme with KPart looks a bit strange for me.

[oshunluvr]

This has been reported as a bug but the DEV says "Won't Fix".

https://bugs.launchpad.net/ubuntu/+s...o/+bug/1767299

For some reason he/she/they decided 1GB was enough despite the cries of protest. You will have to find instructions (I couldn't) on how to create a new encrypted swap file. Apparently there's a way to make the installer use a larger size but it's hidden in the code.

Yet another reason to use a swap partition instead of a swap file. At least you have control over the size of it. Good luck with your search.

[claydoh]

With the full disk encryption, modifying or adding swap files should work using the standard methods.
I added swap to mine, but I can't recall if I added an extra file, or created a larger one to replace the original. My encrypted Neon laptop's SSD died a few days ago, so I cannot check. (my first one to do so, and of course it was my newest one )

[bokiscout]

I did it! My PC feels smoother now.

- I was folowing the link provided above (:https://askubuntu.com/questions/1009...ting-swap-file), and the links inside that thread... etc.

- I find out that you can have multiple swap files, multiple swap partitions or combination of both.

- The easiest way was to create new swap file and append it to the /etc/fstab to be permannent.

Here are the commands:

sudo dd if=/dev/zero of=/swapfile2 bs=1M count=12288 #makes a 12GB file
sudo chmod 600 /swapfile2 #set permission to root only
sudo mkswap /swapfile2 #converts file to swap format
sudo swapon /swapfile2 #enable swap on the file.
echo '/swapfile2 none swap sw 0 0' | sudo tee -a /etc/fstab #make it permannent

Thank You All.