Setup SWAP on Linux

March 16, 2020 · 1 min · Cat York

Table of Contents

1. Create SWAP file1. Create SWAP file
2. Active SWAP
3. Check
4. Disable SWAP, wipe SWAP file. if you just swapoff SWAP not delete SWAP file, SWAP will reactive when next restart.

1. Create SWAP file1. Create SWAP file

dd if=/dev/zero of=/opt/.swap bs=1024k count=20 （count is what SWAP size you need, MB）
mkswap /opt/.swap

2. Active SWAP

swapon /opt/.swap

3. Check

free

4. Disable SWAP, wipe SWAP file. if you just swapoff SWAP not delete SWAP file, SWAP will reactive when next restart.

swapoff /opt/.swap`
`rm /opt/.swap