[SeaBIOS] Commit d6728f301d7e ("add serial console support") causes double-printing
Gerd Hoffmann
kraxel at redhat.com
Thu Jan 11 10:07:03 CET 2018
Hi,
> But instead I get the following mess:
>
> │ BBoooott AArrcchh LLiinnuuxx ((xx8866__6644))
Seems both seabios and boot loader print to the serial line.
> qemu-system-x86_64 -nodefaults -nographic -serial mon:stdio -cpu kvm64 -enable-kvm -boot d -no-reboot -cdrom archlinux-2018.01.01-x86_64.iso
Try "-display none" instead of "-nographic".
"-nographic" is a shortcut which does several things, one of them is
setting the "-machine graphics=off" guest hint, which in turn enables
the serial console in seabios.
cheers,
Gerd
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