I have an MSI 490-a pro mother board. I have an OS installed on one SSD. I recently purchased an M.2 drive with the intention of installing a separate OS. I thought I would be able to select which drive to boot from in the BIOS, but that doesn't seem to be the case. After installing the new OS on the M.2 drive, the SSD drive no longer shows up in the bios as a boot device. It does show up as being a SATA drive, but it doesn't show up as a boot device- no way to select it. The only way to get it back is to either remove the M.2 drive or erase the M.2 drive. Same thing happens in reverse. If I install the new OS on the M.2 drive and then remove it, My SSD with the old OS shows up as a boot hard drive. If I then reinstall the M.2 drive, it shows up as SATA connected but it doesn't show as a boot drive and there is no way to select it. Two questions. What causes this - is it a specific BIOS eccentricity or something with all BIOS? To switch between 2 boot drives, is a hardware drive switcher needed?
To save time, I do know about dual boot systems. I don't want that. I want 2 boot drives and the ability to choose which one boots the computer.
To save time, I do know about dual boot systems. I don't want that. I want 2 boot drives and the ability to choose which one boots the computer.