KVM 禁用 VirtIO Balloon

抵制内存超售，提高小鸡稳定性 禁用Balloon气球驱动.

https://github.com/uselibrary/memoryCheck

wget https://raw.githubusercontent.com/uselibrary/memoryCheck/main/memoryCheck.sh && chmod +x memoryCheck.sh && bash memoryCheck.sh

echo "blacklist virtio_balloon" | sudo tee /etc/modprobe.d/blacklist.conf
sudo update-initramfs -u
reboot