On Mon, Oct 24, 2016 at 07:42:36AM +0200, Philipp Stanner wrote:
Hi,
[...]
The second problem is that a self-build seabios doesn't boot in qemu (again for me and people in IRC). While the default-qemu-bios boots any diskimage just fine, -boot build/coreboot.rom causes seabios to start fine (at first), too. But when it actually tries to boot from an image, the errors: "Graphic initalization failed. Error setting up gfxboot. boot: Could not allocate memory."
I think I was able to reproduce the problem, when Philipp described it on IRC:
1. checkout coreboot from git[1], or run make clean && rm .config
2. make menuconfig, select Emulation/QEMU-i440fx. SeaBIOS will automatically be selected.
3. make
4. Test with QEMU. I'm using QEMU 2.6.0 from Debian testing (a.k.a. stretch) on an x86_64 laptop. Both of the tested CDs use ISOLINUX.
4.1.1. get xubuntu-16.04.1-desktop-amd64.iso[2]
4.1.2. qemu-system-x86_64 -cdrom xubuntu-16.04.1-desktop-amd64.iso -m 512 A splash screen is shown, and then a graphical boot menu, which allows to select language, different boot modes, kernel command line, etc.
4.1.3. qemu-system-x86_64 -cdrom xubuntu-16.04.1-desktop-amd64.iso -m 512 -bios build/coreboot.rom The splash screen doesn't appear; instead an error is shown:
graphics initialization failed Error setting up gfxboot boot:
4.2.1. get debian-live-8.2.0-amd64-lxde-desktop.iso[3]
4.2.2. qemu-system-x86_64 -cdrom debian-live-8.2.0-amd64-lxde-desktop.iso A graphical boot menu is shown.
4.2.3. qemu-system-x86_64 -cdrom debian-live-8.2.0-amd64-lxde-desktop.iso -bios build/coreboot.rom ISOLINUX fails to present a graphic menu and falls back to a text-based menu.
I haven't looked at how ISOLINUX does graphics, or what "gfxboot" does exactly, but there's apparently something (graphics-related) in QEMU's stock BIOS, which coreboot+SeaBIOS doesn't provide.
If I build a new virtual harddrive, install Ubuntu there (using qemu's default bios) then I'm able to start the new image using my self-build bios.
I'm not sure what you mean here. Can you explain it in more detail?
Greetings, Jonathan Neuschäfer
[1] I'm currently on commit f5f0b7b71a450 plus some irrelevant local patches. [2] Available at http://cdimage.ubuntu.com/xubuntu/releases/16.04/release/, sha1sum: 4094e1c353742754064c59200ea5d5db0651e948 [3] Available at http://cdimage.debian.org/mirror/cdimage/archive/8.2.0-live/amd64/iso-hybrid..., sha1sum: b0dbe4ca8f526d1e43555459c538607d4a987184