如何在Qemu中启动OpenBIOS？适配qemu-system命令问题咨询

First, let's recap the setup steps you've already completed to align on our starting point:

mkdir foo
cd foo
wget http://www.coreboot.org/images/9/9d/Qemu_coreboot_openbios.zip
wget http://www.coreboot.org/images/0/0d/Vgabios-cirrus.zip
unzip Qemu_coreboot_openbios.zip
unzip Vgabios-cirrus.zip
mv qemu_coreboot_openbios.bin bios.bin
cd ..

The problem you're facing makes total sense—modern QEMU installations replaced the generic qemu command with architecture-specific binaries (like qemu-system-x86_64 for 64-bit systems) to support different hardware targets more cleanly. Here's how to adapt your launch command to get OpenBIOS up and running:

Step 1: Choose the right QEMU binary #

Most coreboot + OpenBIOS setups for QEMU target x86 architecture. Pick the binary matching your system or the target you want to emulate:

• For 64-bit x86 systems/emulation: qemu-system-x86_64
• For 32-bit x86 systems/emulation: qemu-system-i386

You can verify if the binary exists on your system with a quick check like which qemu-system-x86_64 (it should return a path if installed).

Step 2: Update the launch command #

Swap out the old qemu command with the architecture-specific binary, keeping all your original parameters intact—they still work exactly as intended:

For 64-bit emulation: #

qemu-system-x86_64 -L foo -hda /dev/zero -serial stdio

For 32-bit emulation: #

qemu-system-i386 -L foo -hda /dev/zero -serial stdio

Quick breakdown of the parameters (just to confirm) #

• -L foo: Tells QEMU to look for BIOS/ROM files in your foo directory (where you placed bios.bin and the VGA BIOS) — no changes needed here.
• -hda /dev/zero: Uses a dummy empty disk, which is perfect for testing the coreboot + OpenBIOS boot flow without needing a real OS image.
• -serial stdio: Redirects the serial output to your terminal, so you'll see all the OpenBIOS boot messages as it starts up.

If you still hit snags, double-check that bios.bin is correctly placed in the foo directory, and that your QEMU package includes the architecture binary you're trying to use.

内容的提问来源于stack exchange，提问作者LUser