1、激活root账户
sudo passwd root
2、修改开机grub
sudo vim /etc/default/grub
GRUB_TIMEOUT=20
3、修改时区
sudo timedatectl set-timezone Asia/Shanghai
4、禁止更新
# 查看当前内核版本
# apt 禁止更新
sudo apt-mark hold linux-image-generic linux-headers-generic
# or
uname -r
# 4.15.0-64-generic
sudo apt-mark hold 4.15.0-64-generic
sudo vim /etc/apt/apt.conf.d/20auto-upgrades
#APT::Periodic::Update-Package-Lists "1";
#APT::Periodic::Unattended-Upgrade "1";
APT::Periodic::Update-Package-Lists "0";
APT::Periodic::Unattended-Upgrade "1";
5、检查和维护nvidia
sudo fuser -v /dev/nvidia*
sudo nvidia-smi --gpu-reset -i 0
# -r
6、停用cloud-init
sudo touch /etc/cloud/cloud-init.disabled
# -r
