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From IGEP - ISEE Wiki
QEMU
,→Board Emulation
$ [http://git.linaro.org/gitweb?p=qemu/qemu-linaro.git;a=summary git clone git://git.linaro.org/qemu/qemu-linaro.git]
Download IGEP support patch for QEMU from this [http://downloadswww.igepisee.esbiz/QEMUcomponent/0001zoo/item/qemu-IGEP_QEMU_support.path emulator link ]and after that apply the patch as:
<pre>$ cd qemu-linaro
Install QEMU:
<pre>$ make install</pre>
Optionally you can download from [http://downloadswww.igepisee.esbiz/QEMUcomponent/zoo/item/qemu-linaro.tar.gz emulator here] the QEMU binaries, we suggest install it under /opt directory with the right user execution permissions.<br>
== Board Emulation ==
<pre>$ cd /opt/qemu-linaro/bin
</pre>
We provide a QEMU ready image based on Ubuntu/Linaro Nano (Oneric 11.11) image, it can be download from [http://downloadswww.igepisee.esbiz/QEMUcomponent/igepzoo/item/qemu-nano.img emulator here](first uncompress it).<br>
The image has 2 partitions (you can see the partitions using fdisk -ul command as: fdisk -ul igep-nano.img)<br>
Optionally you can mount the partitions in you host PC and modify the content as:<br>
<pre>First Partition:
$ mount -o loop,offset=$[63*512] igep-nano.img /mnt/tmp
</pre><pre>Second Partition:
$ mount -o loop,offset=$[106496*512] igep-nano.img /mnt/tmp</pre>
Now you're ready for execute the emulator in a console with this command:<br>
<pre>qemu-system-arm -M igep -m 512 -clock unix -serial stdio -drive file=igep-nano.img,if=sd,cache=writeback -usb -monitor telnet:localhost:7100,server,nowait,nodelay -device usb-kbd -device usb-mouse</pre>
Parameters:<br>
-m : Memory assigned to the Virtualized board in Mega Bytes. <br> <br>
=== Extending Rootfs partition<br> Tips ===
First we create a new raw file using qemu-rwimg as: <pre>$ qemu-rimg create --r-- 1 mcaro mcaro 21474836480 2012-01-10 19f raw addon.raw 1G </pre> With addon.raw we concatenate it at end of our image file as:03 <pre>$ cat addon.raw>> igep-nano.img </pre> Next step it's modify the partition table information. We will use cfdisk utility for modify the information. <pre>$ sudo cfdisk igep-nano.img <br/pre>Next step it's select your rootfs partition as this picture shows
The next step it's update the file-system structure. <brpre>$ sudo losetup /dev/loop0 igep-nano.img -o $[106496*512] $ sudo e2fsck -f /dev/loop0 e2fsck 1.41.14 (22-Dec-2010)rootfs: recovering journalPass 1: Checking inodes, blocks, and sizesPass 2: Checking directory structurePass 3: Checking directory connectivityPass 4: Checking reference countsPass 5: Checking group summary information rootfs: ***** FILE SYSTEM WAS MODIFIED *****rootfs: 11969/5579872 files (0.6% non-contiguous), 1126338/22491136 blocks $ sudo resize2fs /dev/loop0 $ sudo losetup -d /dev/loop0 </pre> Now you should see your new partition with your wished new size. [[Category:Development_tools|QEMU]]
