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authorRichard Purdie <richard.purdie@linuxfoundation.org>2011-04-21 11:57:36 +0100
committerRichard Purdie <richard.purdie@linuxfoundation.org>2011-04-21 11:57:36 +0100
commit01ec9f0886cf106c5df3bba31de29319d7399e41 (patch)
treecdbfd88f10aeea09960f3ede866c2eda221a0291 /scripts/runqemu.README
parent04c1d218ffb775d25c0eaefa3558bab250bb3b4b (diff)
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scripts/runqemu.README: Clean this up to accurately reflect what the runqemu command now does
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
Diffstat (limited to 'scripts/runqemu.README')
-rw-r--r--scripts/runqemu.README88
1 files changed, 20 insertions, 68 deletions
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.