ubuntu armhf qemu.txt

you need to download latest compiled snapshot of QEMU for windows and add the folder path to your PATH env . 
you need also osfmount wich used to mount hda image fo extract vmlinuz and initrd after installation . 
a least you need a vnc client (qemu kvm console in windows suck ( wrong keymap, dead keyboard alt ctrl touch ) , use the tightvnc-jviewer.jar standlone client ; 
the script bellow download the latest ubuntu netinstall bootstrap for armhf , create a 16Go raw disk image and start installation  


##################################" begin install step  

@echo off
SET QEMU=C:\Program Files\qemu



echo 'Download Ubuntu Net install files.'
powershell -command "& { iwr http://ports.ubuntu.com/ubuntu-ports/dists/xenial-updates/main/installer-armhf/current/images/generic-lpae/netboot/initrd.gz -Outfile install-initrd.gz }"
powershell -command "& { iwr http://ports.ubuntu.com/ubuntu-ports/dists/xenial-updates/main/installer-armhf/current/images/generic-lpae/netboot/vmlinuz -Outfile install-vmlinuz }"

echo 'Create the hdd (16Gb)'

"%QEMU%\qemu-img" create -f raw ubuntu.img 16G

echo 'The installation process will start'
echo 'Please connect vnc client to localhost to open kvm console'
echo 'alt+ctrl+[1,2,3] to switch qemu console input [serial should be 2]'
echo 'When installation is finished, close quemu and run postinstall.bat script'
echo 'to extract vmlinuz and initrd.gz file.'


"%QEMU%\qemu-system-arm.exe" -M virt -m 2048M^
	-kernel install-vmlinuz^
	-initrd install-initrd.gz^
	-drive if=none,file=ubuntu.img,id=hd,format=raw^
	-device virtio-blk-device,drive=hd^
	-netdev user,id=mynet^
	-device virtio-net-device,netdev=mynet^
	-vnc :0 -k fr^
	-no-reboot
	
	
########################### end install step 

The installation step finished, we need to extract vmlinuz and initrd to boot properly our arm vm .

########################### begin postinstall step 

@echo off

echo 'Mouting /boot/ partition ...' 

"%cd%\osfmount\osfmount.com" -a -t file -f "%cd%\ubuntu.img" -m "Z:"

if not exist Z:\ (
	echo 'Unable to mount, maybe Z: is already used ?'
	quit
)


echo 'Copy initrd.gz and vmlinuz ..'

xcopy Z:\vmlinuz-* "%cd%\"
xcopy Z:\initrd-*.gz "%cd%\"

echo 'Unmouning ..'

"%cd%\osfmount\osfmount.com" -D -m Z:

#################################### end postinstall step

#################################### booting step

@echo off
SET QEMU=C:\Program Files\qemu
REM set the approprate filename for the kernel and initrd with the name of previously extracted from /boot partition  .
SET kernel=vmlinuz
SET initrd=initrd.gz
SET hdd=ubuntu.img



"%QEMU%\qemu-system-arm.exe" -M virt -m 2048M^
	-kernel %kernel%^
	-initrd %initrd%^
	-drive if=none,file=%hdd%,id=hd^
	-device virtio-blk-device,drive=hd^
	-netdev user,id=mynet^
	-device virtio-net-device,netdev=mynet^
	-vnc :0 -k fr^

	
##################################### end boot vm step 

Some post install notice

if u need portfowarding ( to ssh or vnc .... ) modifie the following parameter -netdev user,id=mynet to -netdev user,id=mynet,hostfwd=tcp::2222-:22

# install common deps. 
apt-get update
apt-get install build-essential gdb strace git autoconf autogen

# Pour un ltrace pas daubé. 
git clone git://git.debian.org/git/collab-maint/ltrace.git 
cd ltrace &&./autogen.sh && ./configure && make && make install 

# Install pwntools
apt-get install python2.7 python-pip python-dev git libssl-dev libffi-dev  build-essential
pip install --upgrade pip
pip install --upgrade pwntools


# install pwndbg .. etc ;