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Please follow instructions at Using serial console with Bedrock V3000
BIOS settings
You need to enable some configurations in BIOS before starting the installation.
Insert the USB media to the device
Turn on Bedrock
Repetitively press the DEL / ESC key to enter the BIOS setup
In BIOS go to -> Save & Exit -> <your bootable USB device> -> yes
Device will reset and a PFsense boot screen will appear
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