Booting Linux via NVMe working, but why won't THIS work?

[captaincheeto]

I am using an old i3 desktop to run OpenMediaVault, and added an NVMe drive via my PCIex16 slot with an adapter. I have Clover on a 4GB USB drive, and got it configured and working and OMV installed on the NVMe drive. It will boot into Clover, and I see Linux as the default, hit Enter, and it boots into OMV. Great! But I want to have it boot automatically because I want to run it headless.

Digging into the config, I tried setting the timeout to 0, that didn't work.
Here are the things I tried setting the DefaultVolume string to in the Boot section of the config.plist:

• f7xxxxxx--xxxx-xxxx-xxxx-xxxxxxxxxxea
  this is the PARTUUID of the NVMe drive's vfat partition (the only others were swap and root) per blkid
• 0xxx-xxx8
  this is the UUID of the NVMe drive's vfat partition
• PciRoot(0x0)\Pci(0x1,0x0)\Pci(0x0,0x0)\NVMe(0x1,E9-xx-xx-xx-xx-xx-xx-00)\HD(1,GPT,f7xxxxxx--xxxx-xxxx-xxxx-xxxxxxxxxxea)
  this is what was printed out on the clover screen when I went into options, and the PARTUUID was correct
• HD(1,GPT,f7xxxxxx--xxxx-xxxx-xxxx-xxxxxxxxxxea,0x800,0x1E8000)
  this is a format suggested from a post somewhere out there

So the ONLY way I can get it to boot automatically is if I set DefaultVolume string to LastBootedVolume as well as timeout to 0. I then booted it, selected Linux by hitting Enter, let it boot, and then shut down.

So now it will startup Linux automatically because it knows the last booted volume, but it is bugging me that I couldn't figure out the 'proper' solution.

Here's my config.plist... config_masked.plist.txt

[jzrodriguez98]

I'm booting an arch Linux distro called pearOS using clover. I created a custom boot entry and it's Working great. I don't define Linux as the default as I prefer to have macOS as the default one. I'm curious about your issue so I will check if it works with my Linux distro.

[captaincheeto]

Thanks. It does boot the paritition fine, it was just the automatic booting by defining the volume. My wording wasn't quite clear, so i updated it above.