The start menu can be seen in VPS console when the VPS is starting. The menu can be used to configure the init command to be used or to start a shell. Without user interaction, the menu starts /sbin/init from the VPS. This command can be sligthly different depending on the distribution.

• Start system will start the system as usual.
• Run shell will start /bin/sh from the VPS. After the shell is closed, the start menu reappears. This can be used to access the file system when the system is not starting, e.g. due to a configuration error.
• Run custom command can be used to add arguments to the init process or to run a different process as init.

The start menu can be configured in VPS details in vpsAdmin:

By default, the start menu is enabled on all VPS with a timeout of 5 seconds. Setting the timeout to 0 will disable the start menu completely.

For VPS with NixOS, the start menu allows one to choose which system generation to start, similar to a standard boot loader like GRUB. Notice the second menu item:

Accessing it will open a sub menu with available generations: