07-31-2020, 10:25 AM
In fact, I don’t really understand what you are confused about? Obviously Disk 0 and Disk 1 are different disks, and they have two partitions respectively. In the UEFI BIOS firmware, there will be different boot options that point to ESP partitions on different disks. When you select different boot options, you can start the operating system from different disks.