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diff --git a/scripts/runqemu.README b/scripts/runqemu.README index 38f9306381..5908d831a4 100644 --- a/scripts/runqemu.README +++ b/scripts/runqemu.README @@ -1,90 +1,42 @@ -Poky images with QEMU -===================== +Using OE images with QEMU +========================= -Poky can generate qemu bootable kernels and images with can be used -on a desktop system. Both arm and x86 images can currently be booted. -There are two scripts, runqemu and runqemu, one for use within poky, -the other externally. - -QEMU outside Poky (runqemu) -============================= +OE-Core can generate qemu bootable kernels and images with can be used +on a desktop system. The scripts currently support booting ARM, MIPS, PowerPC +and x86 (32 and 64 bit) images. The scripts can be used within the OE build +system or externaly. The runqemu script is run as: - MACHINE=<machine> runqemu <zimage> <filesystem> + runqemu <machine> <zimage> <filesystem> where: + <machine> is the machine/architecture to use (qemuarm/qemumips/qemuppc/qemux86/qemux86-64) <zimage> is the path to a kernel (e.g. zimage-qemuarm.bin) - <filesystem> is the path to an ext2 image (e.g. filesystem-qemuarm.ext2) - <machine> is "qemuarm" or "qemux86" + <filesystem> is the path to an ext2 image (e.g. filesystem-qemuarm.ext2) or an nfs directory -The MACHINE=<machine> prefix is optional and without it the script will try -to detect the machine name from the name of the <zimage> file. +If <machine> isn't specified, the script will try to detect the machine name +from the name of the <zimage> file. If <filesystem> isn't specified, nfs booting will be assumed. +When used within the build system, it will default to qemuarm, ext2 and the last kernel and +core-image-sato-sdk image built by the build system. If an sdk image isn't present it will look +for sato and minimal images. -QEMU within Poky (runqemu) -========================== - -The runqemu script is run as: - - runqemu <target> <type> <zimage> <filesystem> - -where: - - <target> is "qemuarm","qemux86","nokia800","spitz" or "akita" - <type> is "ext2", "nfs", "ext3" or "jffs2". (not all machines support all options) - <zimage> is the path to a kernel (e.g. zimage-qemuarm.bin) - <filesystem> is the path to the image (e.g. filesystem-qemuarm.ext2) - -It will default to the qemuarm, ext2 and the last kernel and core-image-sdk -image built by poky. +Full usage instructions can be seen by running the command with no options specified. Notes ===== - The scripts run qemu using sudo. Change perms on /dev/net/tun to - run as non root + run as non root. The runqemu-gen-tapdevs script can also be used by + root to prepopulate the appropriate network devices. - You can access the host computer at 192.168.7.1 within the image. - Your qemu system will be accessible as 192.16.7.2. - - The default NFS mount points are /srv/nfs/qemux86 or /srv/nfs/qemuarm - depending on the target type. - - Images built for qemux86/qemuarm contain NFS server which export whole - rootfs (/) in read/write mode. - - You can set QEMU_MEMORY to control amount of available memory (default 64M). - - You can set SERIAL_LOGFILE to have the serial output from the image logged - to a file. - - -NFS Image Notes -=============== - -As root; - -% apt-get install nfs-kernel-server - -% mkdir /srv/nfs/qemuarm - -Edit via /etc/exports : - -# /etc/exports: the access control list for filesystems which may be exported -# to NFS clients. See exports(5). -/srv/nfs/qemuarm 192.168.7.2(rw,no_root_squash) - -% /etc/init.d/nfs-kernel-server restart - -% modprobe tun - -untar build/tmp/deploy/images/<built image>.rootfs.tar.bz2 into /srv/nfs/qemuarm - -Finally, launch: - -% runqemu <target> nfs - -(Substitute qemux86 for qemuarm when using qemux86) - + - The script extracts the root filesystem specified under pseudo and sets up a userspace + NFS server to share the image over by default meaning the filesystem can be accessed by + both the host and guest systems. - Copyright (C) 2006-2008 OpenedHand Ltd. |