Talk:QEMU - Revision history

JulienB: /* With new EABI compilation */ (remove)

2010-06-30T10:09:10Z

‎With new EABI compilation: (remove)

JulienB: /* With new EABI compilation */

2010-06-29T08:51:18Z

‎With new EABI compilation

JulienB: /* With new EABI compilation */ new section

2010-06-29T08:50:29Z

‎With new EABI compilation: new section

JulienB: move old method (ramdisk)

2009-06-16T17:43:00Z

move old method (ramdisk)

JulienB: New page: ==Get/generate simulation images (old version = with ramdisk)== * In our tests we used the QEMU Versatile PB emulated hardware. To get a compatible Linux kernel for this board then:

2009-06-16T17:27:10Z
New page: ==Get/generate simulation images (old version = with ramdisk)== * In our tests we used the QEMU Versatile PB emulated hardware. To get a compatible Linux kernel for this board then: <pre c...
New page
==Get/generate simulation images (old version = with ramdisk)==

* In our tests we used the QEMU Versatile PB emulated hardware. To get a compatible Linux kernel for this board then:

<pre class="host">

 $ cd your_armadeus_view/

 $ wget http://people.debian.org/~aurel32/arm-versatile/vmlinuz-2.6.26-2-versatile

</pre>

* get some useful environment variables:

<pre class="host">

 $ make shell_env

 $ source armadeus_env.sh

</pre>

* in ''$ARMADEUS_ROOTFS_DIR/etc/inittab'', comment following line:

<pre class="host">

 ttySMX0::respawn:/sbin/getty -L ttySMX0 115200,57600,38400 vt100

</pre>

* Generate your Armadeus Rootfs as an EXT2 image:

<pre class="host">

 $ make menuconfig

</pre>

<pre class="config">

Target filesystem options  ---> 

    [*] ext2 root filesystem

    ... (keep all default options)

</pre>

<pre class="host">

 $ make

</pre>

* be sure that your rootfs image is less than 16Mbytes (Ramdisk limit)

<pre class="host">

$ ls -al $ARMADEUS_BINARIES/*.ext2

</pre>

* and zip it (we will use it as Ramdisk first):

<pre class="host">

 $ gzip -9 $ARMADEUS_BINARIES/apfxx-rootfs.arm.ext2

</pre>

* Create a fake QEMU Hard disk image

<pre class="host">

 $ qemu-img create -f qcow rootfs.arm_nofpu2.img 20M

</pre>

← Older revision		Revision as of 10:09, 30 June 2010
Line 79:		Line 79:
	[armadeus]$ qemu-system-arm -m 32 -M versatilepb -kernel vmlinuz-2.6.18-6-versatile \		[armadeus]$ qemu-system-arm -m 32 -M versatilepb -kernel vmlinuz-2.6.18-6-versatile \
	-append "root=/dev/sda1" -hda ./apf9328-rootfs.arm_nofpu2.img		-append "root=/dev/sda1" -hda ./apf9328-rootfs.arm_nofpu2.img
−
−	~~== With new EABI compilation ==~~
−	~~<pre class="host">~~
−	~~$ wget http://ports.ubuntu.com/ubuntu-ports/dists/lucid/main/installer-armel/current/images/versatile/netboot/vmlinuz~~
−	~~$ qemu-system-arm -M versatilepb -cpu cortex-a8 -kernel ./vmlinuz -hda armadeus-qemu.img -m 64-append "root=/dev/sda mem=64M ro"~~
−	~~</pre>~~

@@ Line 81: / Line 81: @@
 == With new EABI compilation ==
+<pre class="host">
 $ wget http://ports.ubuntu.com/ubuntu-ports/dists/lucid/main/installer-armel/current/images/versatile/netboot/vmlinuz
 $ qemu-system-arm -M versatilepb -cpu cortex-a8 -kernel ./vmlinuz -hda armadeus-qemu.img -m 64-append "root=/dev/sda mem=64M ro"

← Older revision		Revision as of 08:50, 29 June 2010
Line 79:		Line 79:
	[armadeus]$ qemu-system-arm -m 32 -M versatilepb -kernel vmlinuz-2.6.18-6-versatile \		[armadeus]$ qemu-system-arm -m 32 -M versatilepb -kernel vmlinuz-2.6.18-6-versatile \
	-append "root=/dev/sda1" -hda ./apf9328-rootfs.arm_nofpu2.img		-append "root=/dev/sda1" -hda ./apf9328-rootfs.arm_nofpu2.img
		+
		+	== With new EABI compilation ==
		+
		+	$ wget http://ports.ubuntu.com/ubuntu-ports/dists/lucid/main/installer-armel/current/images/versatile/netboot/vmlinuz
		+
		+	$ qemu-system-arm -M versatilepb -cpu cortex-a8 -kernel ./vmlinuz -hda armadeus-qemu.img -m 64-append "root=/dev/sda mem=64M ro"

← Older revision		Revision as of 17:43, 16 June 2009
Line 38:		Line 38:
	$ qemu-img create -f qcow rootfs.arm_nofpu2.img 20M		$ qemu-img create -f qcow rootfs.arm_nofpu2.img 20M
	</pre>		</pre>
		+
		+	==Launch it (old method)==
		+	* first time with ramdisk
		+	[armadeus]$ qemu-system-arm -m 32 -M versatilepb -kernel vmlinuz-2.6.18-6-versatile \
		+	-initrd apf9328-rootfs.arm.ext2.gz -append "root=/dev/ram" -hda ./apf9328-rootfs.arm_nofpu2.img
		+
		+	[[Image:qemu_apf_ramdisk.png]]
		+
		+	* When system has booted, we will create the "hard disk" image. But first, if you are French, load a usable keymap:
		+	<pre class="apf">
		+	# loadkmap < /etc/i18n/fr.kmap
		+	</pre>
		+	<pre class="host">
		+	=> loqdk,qp < !etc!i&_n!fr:k,qp on your PC keyboard
		+	</pre>
		+	* then:
		+	<pre class="apf">
		+	# mkdir /tmp/dev
		+	# mknod /tmp/dev/sda b 8 0
		+	# mknod /tmp/dev/sda1 b 8 1
		+	# fdisk /tmp/dev/sda
		+	n p 1 <enter> <enter> w
		+	# mkfs.ext2 /tmp/dev/sda1
		+	</pre>
		+	* Now we can mount our brand new file system:
		+	<pre class="apf">
		+	# mkdir /mnt/root
		+	# mount /tmp/dev/sda1 /mnt/root
		+	</pre>
		+	{{Note\|Following steps need you already configured [[Communicate \| tftp]] on your host and networking up and running}}
		+
		+	* And now we can populate it:
		+	<pre class="apf">
		+	# cd /mnt/root
		+	# tftp -g -r apf27-rootfs.arm.tar -l rootfs.arm.tar [HOST IP]
		+	# tar -xvf rootfs.arm.tar
		+	</pre>
		+
		+	* Finally halt the emulated system and, next boot, we can omit the initrd image:
		+	[armadeus]$ qemu-system-arm -m 32 -M versatilepb -kernel vmlinuz-2.6.18-6-versatile \
		+	-append "root=/dev/sda1" -hda ./apf9328-rootfs.arm_nofpu2.img