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Extend swap file on Ubuntu

Digital Innovation Partner

Extend swap file on Ubuntu

Sometimes happen that you need to extend the swap space on your system, so it happens to me when i tried to install Oracle10ex on my ubuntu system.
So i found the solution on this ubuntu forum : http://ubuntuforums.org/showthread.php?t=89782

To extend the swap file to 1gb :

First, create a large empty file:

Code:
sudo dd if=/dev/zero of=/swap_file bs=1M count=1000

Replace 1000 with the size of the swap file desired, in MB. You can also put the swap_file in a different location if desired.

Next, we’ll secure the swapspace, so ordinary users cannot read the contents (potential security breach):

Code:
sudo chown root:root /swap_file
sudo chmod 600 /swap_file

Then, turn it into swap space:

Code:
sudo mkswap /swap_file

Next, turn it on:

Code:
sudo swapon /swap_file

To make it turn on at every bootup, open up /etc/fstab:

Code:
sudo gedit /etc/fstab

Add this line to the end of the file:

Code:
/swap_file       none            swap    sw              0       0

I know that this article is only a copy of a forum but only for more simple search and report.

bye

ivan

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