Newer motherboard probably only support UEFI boot. So if you burn the pfSense in MBR boot mode, it probably won't boot after installation.
You probably have to make sure it writes in UEFI boot mode for USB flash drive.
Ignore Realtek patent message, it's on all motherboards with realtek chip.
The part that you said the motherboard still wants to boot from Realtek after you disable it in BIOS, that's really weird.
Given you are going to encrypt to hell, I would not use an ssd at all.
just to boot from- all the encryption will take place in the memory.
the problem that I am having right now is comming up with a valid name for the WAN interface since auto detect does not work and em0 does not work either.
that's what it is telling me.
It's saying no link up detected
Can't use auto detect. Had to manually set. You should see your choices right before it asks you the interface name or to hit 'a' for auto select. You'll need to choose your network connection for the WAN and LAN.
I have tried naming it em0 when that failed em1
I have it hooked up to an AP that is connected to a DSL modem
remove the ap from the chain, so DSL Modem - Intel NIC named WAN. Name doesn't matter really, as long as you recognise it.
when I try assigning them it says : Invalid interface name 'em0'
I don't know the mac addresses of this card
"em" means it's Intel NIC, "le" means it's AMD NIC, etc. pfsense use 2 to 4 letters to identify different NIC vendors.
what do you see on the middle of screen like this?
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if it's detected as "ab0" and "ab1", then you have to use "ab0" and "ab1" to assign LAN & WAN, not em0 & em1.