11/12/2023 0 Comments How to emulate linux kernelHere are the steps for building a Ext3 rootfs image, assuming you Busybox built on your host, for the target architecture:ĭd if=/dev/zero of=rootfs.img bs=1M count=10 Qemu-system-aarch64 -nographic -no-reboot -machine virt -cpu cortex-a57 -smp 2 -m 256 -kernel Image -initrd -append "panic=5 ro ip=dhcp root=/dev/ram rdinit=/sbin/init" Then the image built can be booted with the following command: Here are the steps for building a cpio.gz ramfs image, assuming you Busybox built on your host, for the target architecture:įind. Mkdir _install/proc _install/sys _install/dev _install/etc _install/etc/init.dĬat > _install/etc/init.d/rcS /etc/nf Here are the steps to populate a minimal sysroot, assuming you Busybox built on your host, for the target architecture: Some quick useful tips How to populate a minimal sysroot QEMU for the Raspberry Pi - also see discussion.Building an embedded Linux system emulator using QEMU.Support for new boards or new peripherals can added relatively easily in QEMU, the APIs being quite simple to understand and use.
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