Asrock B760M Steel Legend shows only one boot disk

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   Hello,
I've just built a new PC on top of a B760M Steel Legend WiFi motherboard with two M2 NVMe disks (one brand new WD Black SN850X 1TB and one old Samsung 970 Pro 512GB).
The  issue is that in the UEFI, even though it identifies all the drives on the "Advanced / Storage Configuration", it allows only booting from the Samsung drive.
Swapping the drives between the M2 slots does not change the behavior. Mounting the WD Black only does not show it in the "Boot".
Any ideas on what can be happening or what to do to boot from the WD Black drive ?.
Thanks a lot in advance for your inputs

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aggama Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: 21 Nov 2024 Status: Offline Points: 35	Post Options Post Reply Quote aggama Report Post Thanks(0) Quote Reply Topic: Asrock B760M Steel Legend shows only one boot disk Posted: 2 hours 58 minutes ago at 12:40am
	Hello, I've just built a new PC on top of a B760M Steel Legend WiFi motherboard with two M2 NVMe disks (one brand new WD Black SN850X 1TB and one old Samsung 970 Pro 512GB). The issue is that in the UEFI, even though it identifies all the drives on the "Advanced / Storage Configuration", it allows only booting from the Samsung drive. Swapping the drives between the M2 slots does not change the behavior. Mounting the WD Black only does not show it in the "Boot". Any ideas on what can be happening or what to do to boot from the WD Black drive ?. Thanks a lot in advance for your inputs

aggama Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: 21 Nov 2024 Status: Offline Points: 35	Post Options Post Reply Quote aggama Report Post Thanks(0) Quote Reply Posted: 14 minutes ago at 3:24am
	Found the solution googling. My WD Black disk was not GPT and did not have EFI partition !!. Fixed all that with diskpart and it became bootable. Installing OS now ...