Linux uses files to create swap partitions

Source: Internet
Author: User

First, Swap introduction:

Swap (swap partition) in Linux, similar to the virtual memory of Windows. A portion of the hard disk space is virtual into memory, and the inactive memory in the system is paged to swap to increase the available memory of the system.

Second, create swap with file

1. Create a file for the swap partition (10,240 1M for 10G)

DD If=/dev/zero of=swapfile.txt bs=1m count=10240

2. Format the swap partition file

Mkswap/root/swapfile.txt

3. Enable swap partition files now

Swapon/root/swapfile.txt

4. Write to file/etc/fstab, boot up

/root/swapfile.txt swap swap defaults 0 0

Linux uses files to create swap partitions

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