Various Boot Managers A boot manager allows one who chooses to install multiple operating systems on his computer to select which to use during bootup (when starting the computer). BootEasy (BTEASY) is the boot manager that may be found from FreeBSD and is installed to the Master Boot Record (MBR) by default when using versions of Free-FDisk prior to 1.10Beta. It displays a simple prompt allowing the user to press one of the function keys (F1-F?) to select the drive and/or partition to boot. XOSL is an extended boot manager that requires at least a 386 and VESA VBE graphics display, but provides an easy to use graphical user interface (GUI) and many other features. 20020830