centos7 create swap partitions and mount

learning target:

Through this experiment to master the creation and management under Linux swap partition.

Steps:

1, in the second a new hard disk partition 1G, swap type is set to
2, activate the new swap partition, and the boot is automatically enabled new swap

Command:

The first step: disk partition

fdisk -l to see the new hard drive is found

for the swap partition according to the following steps, type 82

Step two: the new partition as swap

NOTE: The new partition must first activate before use by partprobe

The third step: Mount swap

The fourth step: activate the new swap, and view

Before activating only one swap, activated by the swapon -a, you can see the new swap