### Install QEMU on Ubuntu Source: https://github.com/dhruvvyas90/qemu-rpi-kernel/wiki/Home Installs the QEMU emulator on Debian-based systems like Ubuntu using the apt-get package manager. ```sh sudo apt-get install qemu ``` -------------------------------- ### Run QEMU Raspberry Pi Emulation (Initial) Source: https://github.com/dhruvvyas90/qemu-rpi-kernel/wiki/Home Starts a QEMU emulation session for a Raspberry Pi using a specified kernel and image file. This command configures the CPU, memory, machine type, and serial console, and appends boot parameters. ```bash qemu-system-arm -kernel kernel-qemu \ -cpu arm1176 \ -m 256 \ -M versatilepb \ -no-reboot \ -serial stdio \ -append "root=/dev/sda2 panic=1 rootfstype=ext4 rw init=/bin/bash" \ -hda image-file-name.img ``` -------------------------------- ### Install QEMU on OS X Source: https://github.com/dhruvvyas90/qemu-rpi-kernel/wiki/Home Installs the QEMU emulator on macOS using the Homebrew package manager. ```sh brew install qemu ``` -------------------------------- ### Emulate Raspberry Pi 3 with QEMU Source: https://github.com/dhruvvyas90/qemu-rpi-kernel/wiki/Native-emulation-of-Rpi2-or-3-using-Qemu's-Raspi2-or-Raspi3-machine The QEMU command to start emulation of a Raspberry Pi 3. It specifies the machine type, kernel, DTB file, storage image, memory, and CPU configuration. ```bash sudo qemu-system-aarch64 -M raspi3 -append "rw earlyprintk loglevel=8 console=ttyAMA0,115200 dwc_otg.lpm_enable=0 root=/dev/mmcblk0p2 rootdelay=1" -dtb ./dtbs/bcm2710-rpi-3-b-plus.dtb -sd 2020-08-20-raspios-buster-armhf-full.img -kernel kernel8.img -m 1G -smp 4 -serial stdio -usb -device usb-mouse -device usb-kbd ``` -------------------------------- ### Emulate Raspberry Pi 3B with QEMU Source: https://github.com/dhruvvyas90/qemu-rpi-kernel/blob/master/native-emulation/README.md The QEMU command to start a Raspberry Pi 3 Model B emulation. It specifies the machine type, kernel command line arguments, DTB file, SD card image, kernel image, memory, and CPU count. ```shell sudo qemu-system-aarch64 -M raspi3b -append "rw earlyprintk loglevel=8 console=ttyAMA0,115200 dwc_otg.lpm_enable=0 root=/dev/mmcblk0p2 rootdelay=1" -dtb ./dtbs/bcm2710-rpi-3-b-plus.dtb -sd 2020-08-20-raspios-buster-armhf-full.img -kernel kernel8.img -m 1G -smp 4 -serial stdio -usb -device usb-mouse -device usb-kbd ``` -------------------------------- ### Mount Raspberry Pi Image Source: https://github.com/dhruvvyas90/qemu-rpi-kernel/blob/master/native-emulation/README.md Steps to mount a Raspberry Pi disk image file to access its contents, including creating a mount point, associating a loop device, and mounting the first partition. ```bash sudo mkdir /mnt/rpi sudo losetup -f --show -P sudo mount /dev/loopp01 /mnt/rpi ``` -------------------------------- ### Copy Kernel and DTB Files Source: https://github.com/dhruvvyas90/qemu-rpi-kernel/wiki/Native-emulation-of-Rpi2-or-3-using-Qemu's-Raspi2-or-Raspi3-machine Commands to copy the kernel and device tree blob (DTB) files from the mounted Raspberry Pi image. These files are essential for QEMU emulation. ```bash cp /mnt/pi/kernel* . cp /mnt/pi/*.dtb . ``` -------------------------------- ### Configure QEMU udev rules Source: https://github.com/dhruvvyas90/qemu-rpi-kernel/wiki/Home Sets up udev rules for QEMU emulation to map device symlinks, such as 'sda' to 'mmcblk0', which is useful for emulating SD card behavior. ```bash KERNEL=="sda", SYMLINK+="mmcblk0" KERNEL=="sda?", SYMLINK+=%n KERNEL=="sda2", SYMLINK+=root ``` -------------------------------- ### Mount Raspberry Pi Image using Offset Source: https://github.com/dhruvvyas90/qemu-rpi-kernel/wiki/Emulating-Jessie-image-with-4.x.xx-kernel This snippet demonstrates how to mount a Raspberry Pi disk image file using the 'mount' command with a calculated offset. It first uses 'fdisk -l' to determine the starting sector of the filesystem and then calculates the byte offset for mounting the ext4 partition. ```bash fdisk -l mount -v -o offset=67108864 -t ext4 your-image-file.img /path/to/mnt/ ``` -------------------------------- ### Install Debian/Ubuntu Kernel Build Dependencies Source: https://github.com/dhruvvyas90/qemu-rpi-kernel/blob/master/tools/README.md Installs essential packages required for building the kernel on Debian or Ubuntu systems. This includes build tools, ARM cross-compilation toolchain, and ncurses for menu configuration. ```shell sudo apt install build-essential gcc-arm-linux-gnueabihf bison flex libncurses-dev ``` -------------------------------- ### Run QEMU Raspberry Pi Emulation (Re-emulate) Source: https://github.com/dhruvvyas90/qemu-rpi-kernel/wiki/Home Restarts the QEMU emulation session with updated configurations, using a disk image file as a drive. This command specifies the kernel, CPU, memory, machine type, serial console, and boot parameters. ```bash qemu-system-arm -kernel kernel-qemu \ -cpu arm1176 \ -m 256 \ -M versatilepb \ -serial stdio \ -append "root=/dev/sda2 panic=1 rootfstype=ext4 rw" \ -drive "file=image-file-name.img,index=0,media=disk,format=raw" ``` -------------------------------- ### Copy Kernel and DTB Files Source: https://github.com/dhruvvyas90/qemu-rpi-kernel/blob/master/native-emulation/README.md Commands to copy the kernel image (kernel* files) and device tree blob (DTB) files from a mounted Raspberry Pi image directory to the current directory. ```bash cp /mnt/rpi/kernel* . cp /mnt/rpi/*.dtb . ``` -------------------------------- ### Unmount Raspberry Pi Image Source: https://github.com/dhruvvyas90/qemu-rpi-kernel/blob/master/native-emulation/README.md Steps to unmount the Raspberry Pi disk image and detach the loop device, ensuring all changes are written and resources are freed. ```bash sudo umount /mnt/rpi sudo losetup -d /dev/loop ``` -------------------------------- ### Unmount Raspberry Pi Image Source: https://github.com/dhruvvyas90/qemu-rpi-kernel/wiki/Native-emulation-of-Rpi2-or-3-using-Qemu's-Raspi2-or-Raspi3-machine Commands to unmount the Raspberry Pi image file and detach the loop device. This is a cleanup step after extracting the necessary files. ```bash sudo umount /mnt/rpi sudo losetup -d /dev/loop ``` -------------------------------- ### Mount Raspberry Pi Image Source: https://github.com/dhruvvyas90/qemu-rpi-kernel/wiki/Native-emulation-of-Rpi2-or-3-using-Qemu's-Raspi2-or-Raspi3-machine Commands to mount a Raspberry Pi image file to extract kernel and DTB files. This involves creating a mount point, using losetup to associate the image with a loop device, and mounting the appropriate partition. ```bash sudo mkdir /mnt/rpi sudo losetup -f --show -P sudo mount /dev/loopp01 /mnt/rpi ``` -------------------------------- ### Enable SSH Forwarding in QEMU Source: https://github.com/dhruvvyas90/qemu-rpi-kernel/wiki/Home Adds network flags to the QEMU command to enable user-mode networking and forward host port 2222 to the guest's port 22, allowing SSH access. ```bash -net nic -net user,hostfwd=tcp::2222-:22 ``` -------------------------------- ### QEMU Emulation with 5.4.51 Kernel (Buster) Source: https://github.com/dhruvvyas90/qemu-rpi-kernel/blob/master/README.md Command to emulate a Raspberry Pi using QEMU with a 5.4.51 kernel image and device tree, tested with Raspbian Buster Lite. It uses a different drive and device configuration compared to the older kernel example. ```bash qemu-system-arm \ -M versatilepb \ -cpu arm1176 \ -m 256 \ -drive "file=/.../2020-05-27-raspios-buster-lite-armhf.img,if=none,index=0,media=disk,format=raw,id=disk0" \ -device "virtio-blk-pci,drive=disk0,disable-modern=on,disable-legacy=off" \ -net "user,hostfwd=tcp::5022-:22" \ -dtb /.../versatile-pb-buster-5.4.51.dtb \ -kernel /.../kernel-qemu-5.4.51-buster \ -append 'root=/dev/vda2 panic=1' \ -no-reboot ``` -------------------------------- ### Map Raspberry Pi Image Partitions with kpartx Source: https://github.com/dhruvvyas90/qemu-rpi-kernel/wiki/Emulating-Jessie-image-with-4.x.xx-kernel This snippet uses the 'kpartx' command to create device mappings for partitions within a Raspberry Pi disk image. It adds mappings for each partition, making them accessible as block devices for mounting. ```bash kpartx -av 2017-07-05-raspbian-jessie-lite.img ``` -------------------------------- ### Emulate Raspberry Pi Image with QEMU Source: https://github.com/dhruvvyas90/qemu-rpi-kernel/wiki/Emulating-Jessie-image-with-4.x.xx-kernel This command shows how to launch a QEMU system emulator for ARM, specifically targeting the versatilepb machine. It specifies the kernel, CPU, memory, and appends root filesystem details for booting the emulated Raspberry Pi image. ```bash qemu-system-arm -kernel /path/to/kernel/kernel-name -cpu arm1176 -m 256 -M versatilepb -serial stdio -append "root=/dev/sda2 rootfstype=ext4 rw" -hda /path/to/image/image-file-name.img ``` -------------------------------- ### Automate Kernel Building with build-kernel-qemu Source: https://github.com/dhruvvyas90/qemu-rpi-kernel/blob/master/tools/README.md The `build-kernel-qemu` script automates the kernel building process for Debian-based distributions. It requires specific configuration files and dependencies to be set up before execution. ```shell #!/bin/bash # Script to automate QEMU Raspberry Pi kernel building # ... (rest of the script content from the source URL) ``` -------------------------------- ### Libvirt Guest Creation for Raspberry Pi Emulation Source: https://github.com/dhruvvyas90/qemu-rpi-kernel/blob/master/README.md Command to create a libvirt guest for Raspberry Pi emulation using `virt-install`. It configures the guest's architecture, machine type, CPU, memory, disk image, network, video, random number generator, and boot parameters including the device tree and kernel. ```bash virt-install \ --name pi \ --arch armv6l \ --machine versatilepb \ --cpu arm1176 \ --vcpus 1 \ --memory 256 \ --import \ --disk /.../2019-09-26-raspbian-buster-lite.img,format=raw,bus=virtio \ --network user,model=virtio \ --video vga \ --graphics spice \ --rng device=/dev/urandom,model=virtio \ --boot 'dtb=/.../versatile-pb-buster.dtb,kernel=/.../kernel-qemu-4.19.50-buster,kernel_args=root=/dev/vda2 panic=1' \ --events on_reboot=destroy ``` -------------------------------- ### Modify Jessie Image Configuration Files Source: https://github.com/dhruvvyas90/qemu-rpi-kernel/wiki/Emulating-Jessie-image-with-4.x.xx-kernel This sequence of commands outlines the steps to modify configuration files within a mounted Raspberry Pi Jessie image. It involves commenting out specific entries in 'ld.so.preload' and 'fstab' to prepare the image for QEMU emulation. ```bash cd /path/to/mnt sudo nano ./etc/ld.so.preload sudo nano ./etc/fstab cd ~ ``` -------------------------------- ### Docker Image for Raspberry Pi Emulation Source: https://github.com/dhruvvyas90/qemu-rpi-kernel/blob/master/README.md Command to run a Docker image that automates the process of emulating a Raspberry Pi. This image likely contains all necessary tools and configurations. ```bash docker run -it lukechilds/dockerpi ``` -------------------------------- ### Mount and Modify Mapped Raspberry Pi Image Source: https://github.com/dhruvvyas90/qemu-rpi-kernel/wiki/Emulating-Jessie-image-with-4.x.xx-kernel This sequence demonstrates mounting a mapped partition from a Raspberry Pi image and modifying its configuration files. It creates a temporary mount point, mounts the mapped partition, edits 'ld.so.preload', and then unmounts the partition. ```bash mkdir /tmp/raspi mount /dev/mapper/loop0p2 /tmp/raspi/ # edit /tmp/raspi/etc/ld.so.preload umount /tmp/raspi/ ``` -------------------------------- ### QEMU Emulation with Buster Kernel Source: https://github.com/dhruvvyas90/qemu-rpi-kernel/blob/master/README.md Command to emulate a Raspberry Pi using QEMU with a Buster-compatible kernel image and device tree. It specifies the machine type, CPU, memory, disk image, network forwarding, device tree, kernel, and kernel append parameters. ```bash qemu-system-arm \ -M versatilepb \ -cpu arm1176 \ -m 256 \ -hda /.../2019-09-26-raspbian-buster-lite.img \ -net user,hostfwd=tcp::5022-:22 \ -dtb /.../versatile-pb-buster.dtb \ -kernel /.../kernel-qemu-4.19.50-buster \ -append 'root=/dev/sda2 panic=1' \ -no-reboot ``` -------------------------------- ### Remove kpartx Mappings Source: https://github.com/dhruvvyas90/qemu-rpi-kernel/wiki/Emulating-Jessie-image-with-4.x.xx-kernel This command removes the device mappings created by 'kpartx' for a given Raspberry Pi disk image. It cleans up the loop devices and mappings associated with the image partitions. ```bash kpartx -dv 2017-07-05-raspbian-jessie-lite.img ``` === COMPLETE CONTENT === This response contains all available snippets from this library. No additional content exists. Do not make further requests.