官术网_书友最值得收藏!

Running images in QEMU

As many projects have a small portion that is hardware dependent, the hardware emulation comes to speed up the development process by enabling sample to run without involving an actual hardware.

Quick EMUlator (QEMU) is a free and open source software package that performs hardware virtualization. The QEMU-based machines allow test and development without real hardware. Currently, the ARM, MIPS, MIPS64, PowerPC, and x86 and x86-64 emulations are supported.

The runqemu script enables and makes the use of QEMU with the OpenEmbedded-Core supported machines easier. The way to run the script is as follows:

$: runqemu <machine> <zimage> <filesystems>

Here, <machine> is the machine/architecture to be used as qemuarm, qemumips, qemuppc, qemux86, or qemux86-64. Also, <zimage> is the path to a kernel (for example, zimage-qemuarm.bin). Finally,<filesystem> is the path to an ext3 image (for example, filesystem-qemuarm.ext3) or an NFS directory.

So, for example, in case we run runqemu qemuarm core-image-full-cmdline, we can see something as shown in the following screenshot:

We can log in with the root account using an empty password. The system behaves as a regular system even being used inside the QEMU. The process to deploy an image in a real hardware varies depending on the type of storage used, bootloader, and so on. However, the process to generate the image is the same. We explore how to build and run an image in the Wandboard machine in Chapter 14, Booting Our Custom Embedded Linux.

主站蜘蛛池模板: 仪征市| 施甸县| 轮台县| 荥阳市| 蓬莱市| 扬中市| 襄垣县| 诸暨市| 隆子县| 嘉祥县| 土默特右旗| 贵南县| 桦南县| 麻江县| 平山县| 晋江市| 石渠县| 台湾省| 土默特右旗| 册亨县| 宜君县| 丰宁| 常宁市| 博罗县| 青神县| 米泉市| 城步| 九龙城区| 元氏县| 盐池县| 禄丰县| 象州县| 临澧县| 廉江市| 邹平县| 阳城县| 府谷县| 栾城县| 工布江达县| 英德市| 余干县|