BIOS? Multiple devices (SSD+HDD, 2 OSes) per Type (HD, CD/DVD, USB) - how to choose which to boot from?

spmind

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Mar 8, 2015
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I have 2 Internal storage drives (sata) - 1 SSD, 1 HDD. I would like to choose to boot from the SSD sometimes, and the HDD other times. Each internal drive will have its own OS.

I want to avoid bootloader options like grub etc. - so if I choose to boot from the SSD, SSD-OS will automatically boot... if I choose to boot from the HDD, HDD-OS will automatically boot. I have no problem restarting/going into the BIOS each time to choose which internal drive to boot from.

But therein lies the problem: My BIOS only allows me to manually select Boot Override from the Type's (eg, Hard Disk, CD/DVD, USB, etc.) primary device. I can change which device is primary, but in order to boot from it I have to save BIOS config, reboot, and then it'll boot into the device/drive/OS. I can stomach restarting once to switch between OSes since that's necessary to do anyway, but restarting, changing boot configs and saving, then rebooting again, before finally getting into my desired OS.................. ??????????????????????


My MOBO: MSI Z87-G45 Gaming, v. 1.9 BIOS
These images are not mine/of my BIOS, but they illustrate what I'm seeing.
1. http://images.anandtech.com/doci/6902/MSI%20GD65-G%20BIOS%2019%20-%20Save%20and%20Exit.png - This is where you select a Boot Override choice. As you can see, SATA3 is their CD/DVD, SATA5 is their HD.

2. http://images.anandtech.com/doci/7244/MSI%20Z87I%20BIOS%2018%20-%20Boot%20Config.png - At the bottom, "BSS Priorities" is where you select the primary/secondary/etc Type options, which determines which drive shows up in the "Boot Override" page.

in a nutshell: Like me, if I have 2 HD's with 2 different OSes, how do I get both options to show up in "Boot Override"? I want to avoid a bootloader like grub etc. because I want to have something to boot into if one of the drives fail, and bootloaders have to be installed to a drive to even work. What if the drive with my bootloader fails? Can't boot.
 
With bootloaders, you can have it 'chainload' to the OS's built-in bootloader on another drive - if you point the BIOS at one drive, the menu will show up, including the other drive as an option. But because you haven't modified the other drive, you can still boot that drive directly if you point the BIOS at it.

Hope that makes sense.

 

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