$ sudo add-apt-repository ppa:phablet-team/tools
$ sudo apt-get update
$ sudo apt-get install phablet-tools android-tools-adb android-tools-fastboot
$ sudo apt-get install git gnupg flex bison gperf build-essential zip curl libc6-dev libncurses5-dev:i386 x11proto-core-dev libx11-dev:i386 libreadline6-dev:i386 libgl1-mesa-glx:i386 libgl1-mesa-dev g++-multilib mingw32 tofrodos python-markdown libxml2-utils xsltproc zlib1g-dev:i386 schedtool
$ mkdir ~/bin
$ PATH=~/bin:$PATH
$ curl https://dl-ssl.google.com/dl/googlesource/git-repo/repo > ~/bin/repo
$ chmod a+x ~/bin/repo
$ mkdir Ubuntu_Touch
$ phablet-dev-bootstrap Ubuntu_Touch
or
$ phablet-dev-bootstrap -c Ubuntu_Touch
$ cd Ubuntu_Touch
$ git clone git://github.com/PlayOSS-Dev/android_device_acer_a500.git -b ubuntu-touch device/acer/a500
$ git clone git://github.com/PlayOSS-Dev/kernel_acer_a500.git -b jellybean4.2 kernel/acer/a500
$ git clone git://github.com/PlayOSS-Dev/vendor_acer_a500.git -b jellybean4.2 vendor/acer/a500
$ source build/envsetup.sh
$ brunch a500
Please see the (http://wiki.ubuntu.com/) for building instructions.