树莓派 qemu模拟启动，构建arm环境；RASPBERRY PI ON QEMU

xuyaowen

发布于 2021-08-05 10:08:05

1.7K1

发布于 2021-08-05 10:08:05

文章被收录于专栏：XUYAOWEN的专栏

最近需要涉及arm平台汇编，为了方便学习，使用qemu进行模拟一下；

教程：https://azeria-labs.com/emulate-raspberry-pi-with-qemu/

镜像下载：https://mirrors.tuna.tsinghua.edu.cn/raspberry-pi-os-images/raspios_armhf/images/raspios_armhf-2021-05-28/

Kernel文件：https://github.com/dhruvvyas90/qemu-rpi-kernel

修改镜像文件：（详情请参考上述链接，此处只是方便我个人记忆）

root@os-lab-vm /h/o/D/rasp# fdisk -l 2021-05-07-raspios-buster-armhf.img 
Disk 2021-05-07-raspios-buster-armhf.img: 3.7 GiB, 3980394496 bytes, 7774208 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disklabel type: dos
Disk identifier: 0xf4481065

Device                               Boot  Start     End Sectors  Size Id Type
2021-05-07-raspios-buster-armhf.img1        8192  532479  524288  256M  c W95 FAT32 (LBA)
2021-05-07-raspios-buster-armhf.img2      532480 7774207 7241728  3.5G 83 Linux

532480 * 512 = 272629760：

$ sudo mkdir /mnt/raspbian
$ sudo mount -v -o offset=272629760 -t ext4 2021-05-07-raspios-buster-armhf.img /mnt/raspbian
$ sudo vim /mnt/raspbian/etc/ld.so.preload

Comment out every entry in that file with ‘#’, save and exit with Ctrl-x » Y.

$ sudo vim /mnt/raspbian/etc/fstab

IF you see anything with mmcblk0 in fstab, then:
Replace the first entry containing /dev/mmcblk0p1 with /dev/sda1
Replace the second entry containing /dev/mmcblk0p2 with /dev/sda2, save and exit.

$ sudo umount /mnt/raspbian

运行：（最新的kernel 5 没运行成功使用的 4）

qemu-system-arm -kernel kernel-qemu-4.19.50-buster -cpu arm1176 -m 256 -M versatilepb -serial stdio -append "root=/dev/sda2 rootfstype=ext4 rw" -hda 2021-05-07-raspios-buster-armhf.img -no-reboot -dtb versatile-pb.dtb

运行效果：（成功运行，我的目的是想启动图形界面的，但是图形界面启动不了）