On Wed, Apr 29, 2009 at 03:10:23PM -0400, Ward Vandewege wrote: > I've been experimenting with SeaBIOS, and I like what I'm seeing a lot. Great > work Kevin!
Thanks! > Feature request: I'd really like a serial console for SeaBIOS. I 'd like > serial to just mirror the VGA console so that either could be used for > viewing and input. Right now, it seems only sending debug output to the > console is supported. I think you're looking for sgabios: http://code.google.com/p/sgabios/ It's a bit of a hack to launch both it and a vga bios with SeaBIOS. Add sgabios.bin to the CBFS system using a PCI vendor:device of a device in your system that doesn't already have an option rom and isn't a vga or ide device. This will cause SeaBIOS to load your vgabios first and then load sgabios after it. I tested this on qemu by doing: ./cbfstool ./coreboot.rom add ../sgabios/sgabios.bin pci8086,7113.rom (8086:7113 is just a random qemu device - the acpi bridge.) > Bug: I have grub configured to pause 5 seconds while giving the user to > select either serial or VGA console for input. This is done with these lines > in menu.lst: > > serial --unit=0 --speed=115200 --word=8 --parity=no --stop=1 > terminal --timeout=5 serial console The only thing I can think of is that SeaBIOS may be setting the serial port settings to something that grub doesn't like. You can try disabling the code in debug_serial_setup() in src/output.c. However, if you've already tried disabling CONFIG_DEBUG_SERIAL, then I don't think this will do much. It could be a conflict with coreboot serial setup and grub I suppose. > Also, the keyboard works fine before I get to grub, but it's hard to catch > the F12 keypress as everything goes pretty fast. Latest SeaBIOS git has an option CONFIG_BOOTMENU_WAIT that you can use to change the menu wait time (default is 2.5 seconds). > I've tried with and without CONFIG_DEBUG_SERIAL set in src/config.h. It does > not seem to make a difference. CONFIG_SERIAL is set to 1. I don't think CONFIG_SERIAL (which control support for old bios int 0x14 calls) is related to this issue. -Kevin -- coreboot mailing list: [email protected] http://www.coreboot.org/mailman/listinfo/coreboot
