How is this accomplished, if it's even possible?
I see the following, however I don't think any flow control gets enabled: GRUB_CMDLINE_LINUX_DEFAULT="nofb nomodeset console=ttyS0,115200" GRUB_TERMINAL="serial" GRUB_SERIAL_COMMAND="serial --speed=115200 --unit=0 --word=8 --parity=no --stop=1"
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