What's the Reboot feature?
There is a special "Reboot" feature in install-us (5. System configuration -
If you select "not specified",
install-us will handle the reboot issue on its own decision. That means, it will by
default not reboot the system. But install-us will reboot the system, when it was not able
to replace one at least one file, which was in use by the system during installation time.
The option "Restart the computer"
forces install-us always to reboot the system at the end of installation.
"Avoid reboot" supresses
a reboot even it might be necessary for a complete installation.