Installation:
1. Download and uncompress spindle:
https://github.com/asb/spindle/archive/master.zip
2. Download and uncompress torberry scripts and patch in the same folder
3. apply patch:
patch -p1 < spindle-fix.patch
This patch is totally independent to torberry, contais minimal fixes
in chroot binary path
4. Run spindle as described in their website:
edit config and comment RASPBIAN=1 line (because raspbian does not have
x86 branch)
sudo ./setup_spindle_environment my_spindle_chroot
edit config again and uncomment line
sudo modprobe nbd max_part=16
schroot -c spindle
./wheezy-stage0
./wheezy-stage1
./wheezy-stage2-torberry
./wheezy-stage3-torberry
./wheezy-stage4-torberry
./helper export_image_for_release out/stage4-torberry.qcow2 torberry.img