swap fallocate swapon

sudo fallocate -l 8000m  8Gb.swap

sudo mkswap 8Gb.swap  
mkswap: 8Gb.swap: insecure permissions 0644, fix with: chmod 0600 8Gb.swap
Setting up swapspace version 1, size = 7.8 GiB (8388603904 bytes)
no label, UUID=ae89f1c9-fa64-450b-9a86-d02163a88598

sudo chmod 0600 /home/ubuntu/8Gb.swap

sudo swapon /home/ubuntu/8Gb.swap


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