How to increase the swap capacity of Linux system

When installing the Linux system, the initial set of swap space is not enough to be used in the actual use, need to increase the swap space;

All the following operations require root user privileges;

To increase the swap capacity step:

1. Create a partition using the DD command

DD If=/dev/zero Of=/home/swap bs=1024 count=10240000

A partition file is created/home/swap. File size is 10.24 million block,bs for 1 blocks of size 1k, here to create 10G size swap;

# Ll/home/swap

-rw-r--r--1 root root 10485760000 April 15:29/home/swap

2, the creation of the file into a swap partition,-f parameter enforcement;

/sbin/mkswap-f/home/swap

3. Make the Swap partition valid

/sbin/swapon/home/swap

FREE-M View swap space has increased 10G space, this setting machine restart after the failure, want to be permanent, need to join the Fstab file;

4, Vim/etc/fstab Add a row, save exit, restart also effective; Remember that you cannot delete the/home/swap file, the newly added swap space will not exist after deletion;

/home/swap swap swap defaults 0 0

This article is from the "Model Student's Learning blog" blog, please be sure to keep this source http://mofansheng.blog.51cto.com/8792265/1916092

How to increase the swap capacity of Linux system