Help installing Proxmox to NVMe Drive

[0Legolas0]

Hi
Firstly, an absolute Proxmox NOOB here . I am trying to repurpose an old Acer TC-865 (i5-8400, 16GB DDR, Crucial 500GB NVMe) desktop and install Proxmox on it. It currently running Win-11 off the onboard NVMe. When I try to install Proxmox (Both Ventoy and Balena Etcher), I can see my other 2x 12TB HDDs, and the boot USB but not the NVMe. I tried to install Debian-Live, Linux Mint and have the same issue, that is the NVMe drive is not visible.

I thought this has something to do w/ NTFS vs EXT4, and tried Hiren's BootCD. I can see the NVMe drive but unable to format it to EXT4 (only NTFS, and RFS)
I will have other questions in being able to configure Proxmox later, but can you please point me how to get Proxmox installed to NVMe drive?

BTW, I tried to configure BIOS to disable secure-boot, and to use CSM (Always)/Legacy mode, etc. but have the overall the same issue. I tried Proxmox w/ Grub2 too, but still no luck. I read out going to Advanced mode and check (lsblk) on the disk, but I get command-not found. Messages before the GUI start are too fast for me to get a full read-on.

Any help would be most appreciated.

 

[UdoB]

I can see my other 2x 12TB HDDs, and the boot USB but not the NVMe.

First guess out-of-the-blue: check inside of the BIOS if that drive is configured for some Intel specific "Raid"-Mode or similar. It should configured to use classic AHCI mode instead.

Good luck!

 

[0Legolas0]

First guess out-of-the-blue: check inside of the BIOS if that drive is configured for some Intel specific "Raid"-Mode or similar. It should configured to use classic AHCI mode instead.

Good luck!

Your "Out-of-the-Blue" hunch was right-on . I found some option called "RST with Optane" and I switched that to AHCI. Now, it wouldn't boot to the installed Windows (doesn't matter), but I can see the NVMe drive and in the process of installing Proxmox.

Thanx a gazillion... I have been breaking my head over this for the past few days.