mkdir /www && mkfs.ext4 /dev/sda && echo "/dev/sda /www ext4 defaults 0 0" >> /etc/fstab && mount -a
mkdir /www && echo "/dev/sda /www ext4 defaults 0 0" >> /etc/fstab && mount -a
growpart /dev/vda 2
resize2fs /dev/vda2

下面一行一行执行下这些命令
mv /etc/apt/sources.list /etc/apt/sources.list.backup
cat <<'EOF' > /etc/apt/sources.list
deb http://archive.debian.org/debian stretch main contrib non-free
deb http://archive.debian.org/debian-security stretch/updates main contrib non-free
EOF
echo 'Acquire::Check-Valid-Until "false";' > /etc/apt/apt.conf.d/99ignore-valid-until
apt-get clean
apt-get update -o Acquire::Check-Valid-Until=false
然后再正常安装扩容 :
apt install -y cloud-guest-utils
apt install -y xfsprogs
先看网卡名称 (列如ens3)
nano /etc/network/interfaces

按照这个格式配置IP (标红的都更改下)
auto ens3 iface ens3 inet static address 156.248.77.33 netmask 255.255.255.0 gateway 156.248.77.1 auto ens3:0 iface ens3:0 inet static address 156.248.77.239 netmask 255.255.255.0 gateway 156.248.77.1 auto ens3:1 iface ens3:1 inet static address 156.248.77.240 netmask 255.255.255.0 gateway 156.248.77.1
配置好后 推出并保存 ( Ctrl+Shift+X ) , 回车 , 然后重启一下

nano /etc/resolv.conf
配置好后 推出并保存 ( Ctrl+Shift+X ) , 回车