Below is the exact sequence I recommend. It’s tight, safe, and avoids all the common pitfalls.

—

# 🚀 **Step 1 — Update Ubuntu**
Open your terminal on the server:

```bash
sudo apt update && sudo apt upgrade -y
sudo reboot
```

A reboot ensures the kernel and Docker dependencies are clean.

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# 🐳 **Step 2 — Install Docker (official method)**

```bash
sudo apt install -y ca-certificates…