[PATCH 23/23] x86: coreboot: Add a sample script to build a qemu image

Simon Glass sjg at chromium.org
Fri Nov 19 21:24:07 CET 2021

It is useful to boot coreboot (with U-Boot as a payload) from qemu. Add
a sample script to show how to do this.

Signed-off-by: Simon Glass <sjg at chromium.org>

 scripts/build-cb.sh | 19 +++++++++++++++++++
 1 file changed, 19 insertions(+)
 create mode 100755 scripts/build-cb.sh

diff --git a/scripts/build-cb.sh b/scripts/build-cb.sh
new file mode 100755
index 00000000000..1da708fb6e1
--- /dev/null
+++ b/scripts/build-cb.sh
@@ -0,0 +1,19 @@
+# SPDX-License-Identifier: GPL-2.0+
+# Sample script to build a disk image suitable for use with coreboot. The image
+# includes a kernel and initrd.
+# YOU WILL NEED to modify this for your needs, e.g. select a kernel.
+# Run this with:
+# qemu-system-i386 -bios coreboot.rom -drive file=disk.img,if=virtio
+qemu-img create -f raw disk.img 120M
+mkfs.ext2 -F disk.img
+sudo mkdir -p /mnt/rootfs
+sudo mount -o loop disk.img /mnt/rootfs
+sudo mkdir -p /mnt/rootfs/boot
+sudo cp /boot/vmlinuz /mnt/rootfs/boot/.
+sudo cp /boot/initrd.img /mnt/rootfs/boot/.
+sudo umount /mnt/rootfs

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