Today i’ve created a vps so i can install routeros for a test drive. After the installation, it asks me what packages i want to install…well…everything! 
Then it asks me if i want to keep the default config (no).
After the install, it reboots and when it comes back…it asked me the same questions (packages, …)???
You need to make the device (a VM?) not boot from the CD/ISO after its first run.