There are patches ad procedures available that can add flash support, but for now I wanted to leave QEMU as it is. QEMU has the possibility to emulate Flash memory on many platforms, but not on the VersatilePB. On power on, the core loads and runs the boot-loader, that in turn loads and runs the operating system. a Flash) containing a boot-loader and the operating system. On real, physical boards the boot process usually involves a non-volatile memory (e.g. : the Busybox-based file system created in my previous post here.zImage: the Linux kernel created in my previous post here.arm-none-eabi toolchain: can be downloaded from the the CodeSourcery ARM EABI toolchain page.Alternatively, it is compiled from U-Boot source. mkImage: can be installed with the package uboot-mkimage.qemu-system-arm: can be installed on Ubuntu with “ sudo apt-get install qemu-kvm-extras“, on Debian with “ aptitude install qemu” as root.

What follows is a description of what I’ve done to emulate a complete boot for an emulated ARM system, and the applied principles can be easily transferred to other different platforms. I tried to put everything together to emulate a complete boot procedure, but it was not so simple. In recent months I played with QEMU emulation of an ARM Versatile Platform Board, making it run bare metal programs, the U-Boot boot-loader and a Linux kernel complete with a Busybox-based file system.

Yocto qemu arm tutorial