The computer I am using right now has 6 physical disks attached. Using the BIOS's "select boot device" functionality I have discovered that I can boot off 3 of these disks into the exact same bootloader. This means that all of these disks have the bootable flag set on their MBR, even though I had been under the impression that only 2 of them are in fact bootable.
My question is: is there an easy way to check which disks have a bootable MBR with a command line tool or some OS utility? I am aware of the
DISKPART tool and its basic functionality, but I haven't found how to view the information I need.
The OS is Windows 7 x64 Ultimate with SP1.