sudo su
swapoff -a
cd /host/ubuntu/disks/
mv swap.disk swap.disk.bak
dd if=/dev/zero of=swap.disk bs=1024 count=2097152

echo 20gigas
mkswap swap.disk
swapon -a
free -m


sudo dd if=/dev/zero of=extra.disk bs=1MB count=1 seek=10000
10gigas

dd if=/dev/zero of=meu_arquivo_20g.img bs=16M count=1280 status=progress

dd if=/dev/zero of=meu_arquivo_10g.img bs=16M count=640 status=progress