I tried with one SSD and with one NVMe. I find MacOS only likes one SSD when installing. (neither one worked)
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Yes, and they show up on the F12 Boot Screen as well.
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I tried a blank SATA SSD on Port 7, same results. I only left the NVMe SSD in for the install.
Yes, double checked cables. Also, can boot to Ubuntu and see drives.
Yes, the Install Monterey icon appears on the OpenCore Boot screen. Here is what I get if I press the spacebar. No debug options as far as I know.
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Install Monterey
OpenShell
Reset NVRAM