Startup Manager is a tool that allows you to easily configure some settings in the GRUB boot menu. The program can operate on all Debian system .
Usplash boot is a feature that uses the Linux framebuffer. SUM allows you to configure and install Upslash new one. Grub boot features help control any OS is loaded by default and other startup settings. Also, Startup Manager lets you change Grub settings.
This is actually much easier than manually editing /boot/grub/menu.lst file. SUM helps to change the system boot options such as easier option waiting time and the OS default if you run more than one operating system on the same machine.
Startup Manager has solved the problem very quickly. Users were able to increase the timeout before elective Grub default OS. Users can also choose previous versions of the operating system starts by default if you do not want to interfere in the boot process.