swap
Making a Swap File
cd /var/cache/
sudo dd if=/dev/zero of=swapfile bs=1K count=4M
This creates a swapfile of (1k x 4M) 4 Gigs. Change 4M to XM for an XGig swap.
sudo chmod 600 swapfile
sudo mkswap swapfile
sudo swapon swapfile
Test it’s working with top
top -bn1 | grep -i swap
or:
echo "/var/cache/swapfile none swap sw 0 0" | sudo tee -a /etc/fstab
Test it’ll work at boot with:
sudo swapoff swapfile
sudo swapon -va
Partition Swaps
Put this in /etc/fstab:
UUID=blah-blah none swap sw 0 0
Then test it works with:
sudo swapon -va
Test other partitions in fstab with:
sudo mount -a