windows10 wsl2 安装ubuntu和docker

见 弃用Docker Desktop：在WSL2中玩转Docker之Docker Engine 部署与WSL入门-阿里云开发者社区

如果启动docker时报下面这个错， 那是因为systemctl没有启用

sudo systemctl start docker System has not been booted with systemd as init system (PID 1). Can't operate. Failed to connect to bus: Host is down

# 1. 在ubuntu中编辑 WSL 配置文件
sudo tee /etc/wsl.conf <<EOF
[boot]
systemd=true
EOF

# 2. 重启 WSL（在 PowerShell 中执行）
wsl --shutdown

# 3. 重新进入 WSL 后验证
ps -p 1 -o comm=  # 应显示 systemd
sudo systemctl start docker