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| 1 | Using OE images with QEMU | ||
| 2 | ========================= | ||
| 3 | |||
| 4 | OE-Core can generate qemu bootable kernels and images with can be used | ||
| 5 | on a desktop system. The scripts currently support booting ARM, MIPS, PowerPC | ||
| 6 | and x86 (32 and 64 bit) images. The scripts can be used within the OE build | ||
| 7 | system or externaly. | ||
| 8 | |||
| 9 | The runqemu script is run as: | ||
| 10 | |||
| 11 | runqemu <machine> <zimage> <filesystem> | ||
| 12 | |||
| 13 | where: | ||
| 14 | |||
| 15 | <machine> is the machine/architecture to use (qemuarm/qemumips/qemuppc/qemux86/qemux86-64) | ||
| 16 | <zimage> is the path to a kernel (e.g. zimage-qemuarm.bin) | ||
| 17 | <filesystem> is the path to an ext2 image (e.g. filesystem-qemuarm.ext2) or an nfs directory | ||
| 18 | |||
| 19 | If <machine> isn't specified, the script will try to detect the machine name | ||
| 20 | from the name of the <zimage> file. | ||
| 21 | |||
| 22 | If <filesystem> isn't specified, nfs booting will be assumed. | ||
| 23 | |||
| 24 | When used within the build system, it will default to qemuarm, ext2 and the last kernel and | ||
| 25 | core-image-sato-sdk image built by the build system. If an sdk image isn't present it will look | ||
| 26 | for sato and minimal images. | ||
| 27 | |||
| 28 | Full usage instructions can be seen by running the command with no options specified. | ||
| 29 | |||
| 30 | |||
| 31 | Notes | ||
| 32 | ===== | ||
| 33 | |||
| 34 | - The scripts run qemu using sudo. Change perms on /dev/net/tun to | ||
| 35 | run as non root. The runqemu-gen-tapdevs script can also be used by | ||
| 36 | root to prepopulate the appropriate network devices. | ||
| 37 | - You can access the host computer at 192.168.7.1 within the image. | ||
| 38 | - Your qemu system will be accessible as 192.16.7.2. | ||
| 39 | - The script extracts the root filesystem specified under pseudo and sets up a userspace | ||
| 40 | NFS server to share the image over by default meaning the filesystem can be accessed by | ||
| 41 | both the host and guest systems. | ||
| 42 | |||
