I have 2 sata hard disk drives. I have installed windows 10 os on one and red hat enterprise Linux 7 on other and made both of them bootable. But always , when I boot, it directly goes into windows 10. The boot order in bios is configured to load windows installed hard drive first and then Linux installed hard drive next. I need to see dual boot on the post screen, so that I could select which one to log in.
Note: I have uefi bios and installed both operating system as legacy bios in uefi.