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in my post, How to enable swap-drive on linux. The solve problem "Swap Not working" on linux such as centos, Fedora 25.
The open terminal, to check status of swap space ( as run root account) .
swapon -sAs the content below
lsblk
NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT
sr0 11:0 1 1024M 0 rom
sda 8:0 0 465.8G 0 disk
├─sda4 8:4 0 202.1G 0 part
├─sda2 8:2 0 105.9G 0 part /
├─sda5 8:5 0 12.9G 0 part [SWAP]├─sda3 8:3 0 1K 0 part
├─sda1 8:1 0 487M 0 part
└─sda6 8:6 0 144.4G 0 part /media/installed
To turn on swap-drive /dev/sda5
swapon /dev/sda5
To make this permanent start-up on the system
vim /etc/fstab
As the content below
/dev/sda5 swap swap defaults 0 0
To check, if swap drive that work!
free -h
As the content below
total used free shared buff/cache available
Mem: 3.6G 2.2G 123M 321M 1.3G 809M
Swap: 12G 160K 12G
Thanks your reading. I hope this useful.
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