Welp. This was the dumbest possible solution and entirely unhelpful to anyone who also might have these symptoms. I apparently put an SPI TPM module into my LPC TPM header because my supplier sent the wrong one; they have identical header pins...
Very interesting. Still whatever differentiates the Ubuntu 24 kernel from the PVE kernel seems to make a difference unfortunately. I would love to move up to Debian Trixie or Proxmox 9.1, but I can't even get past "Loading Ramdisk" with any...
I've pretty successfully setup Proxmox on multiple machines so I've troubleshooted Proxmox before, but I've never had this much trouble with just booting the ISO. This is a Debian specific kernel level issue, I know, because Ubuntu 24.04 Server...