Installed Ubuntu 15.04 on my low-key laptop and fire a build for llvm project. After a while ubuntu popped up internal error message. When I checked System Monitor- I ran out of RAM and Swap (4GB). So for sure I need more swap space on machine. Canonical as well as askubuntu.com have some good information on how to replace swap-files. Rather than replacing files- I am going to with adding another one. This time 16GB. Here are the steps, you will need superuser access- I prefer sudo to su.
First allocate 16GB memory and mount as 16gb.swap. Also ensure that this file can’t be read by anyone and fill it with zeros
Once we have file allocated and intialized, create a swap volume out of it and then activate it.
If things go well, there won’t be an error on shell and you check the results from System Monitor or
Or alternatively (see 19.9 GiB Swap Size):
So far all of this session only, for it to be made permanent: /etc/fstab needs to be tweaked. I opened up /etc/fstab vim, or any other text editor, and added an entry for 16gb.swap