...
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sudo su |
Create a swap file with 4 blocks of 1GB:
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dd if=/dev/zero of=/mnt/swap bs=1G count=4 |
...
Enable the file for swap usage:
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chmod 600 /mnt/swap mkswap /mnt/swap swapon /mnt/swap |
Persist the swap file:
- add to /etc/fstab (bottom):
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/mnt/swap none swap sw 0 0 |
- add to /etc/sysctl.conf (bottom):
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vm.swappiness=30 |
> Detailed procedure here