gistfile1.txt

Sources:
 - http://xecdesign.com/qemu-emulating-raspberry-pi-the-easy-way/
 - http://www.raspberrypi.org/phpBB3/viewtopic.php?f=66&t=22975
 - http://www.thomaskho.com/blog/2006/02/qemu-and-the-network-bridge/
 - http://toast.djw.org.uk/qemu.html
 - http://wiki.debian.org/QEMU#Host_and_guests_on_same_network

Files needed:
 - http://downloads.raspberrypi.org/images/raspbian/2013-02-09-wheezy-raspbian/2013-02-09-wheezy-raspbian.zip.torrent
 - http://xecdesign.com/downloads/linux-qemu/kernel-qemu 
 
Filesystem:

    unzip 2013-02-09-wheezy-raspbian.zip
    getpartoffset() { BLOCKS=$(fdisk -l $1  | grep ${1}${2} | sed -e 's/\s\+/ /g' | cut -d ' ' -f 2); echo $((BLOCKS*512)); }
    getpartoffset 2013-02-09-wheezy-raspbian.img 2
    mkdir loopback
    sudo mount -o loop,offset=${OFFSET_FROM_EARLIER} loopback
    sudo sed -i 's/^\([^#]\)/#\1/' loopback/etc/ld.so.preload
    sudo sed -i 's/mmcblk0p/sda/' loopback/etc/fstab
    sudo umount loopback

Networking:

    tunctl -u $USER -t tap0
    brctl addbr br0 
    brctl addif br0 tap0
 
Arguments:

qemu-system-arm -kernel kernel-qemu -cpu arm1176 -m 256 -M versatilepb \
                -no-reboot -append "root=/dev/sda2 panic=1" \
                -hda 2013-02-09-wheezy-raspbian.img \
                -net nic,vlan=0 -net tap,ifname=tap0