# Ubuntu phone: chroot

# mkdir /home/chroot
# cd /home/chroot
# cat /etc/lsb-release | grep CODENAME
DISTRIB_CODENAME=vivid
# wget http://cdimage.ubuntu.com/ubuntu-touch/vivid/daily-preinstalled/current/vivid-preinstalled-touch-armhf.tar.gz
# tar -zxvf vivid-preinstalled-touch-armhf.tar.gz
# rm vivid-preinstalled-touch-armhf.tar.gz
# cd /
# mount -o bind /dev /home/chroot/dev
# mount -o bind /sys /home/chroot/sys
# mount -o bind /tmp /home/chroot/tmp
# mount -t proc none /home/chroot/proc
# chroot /home/chroot
# export PS1="(chroot) $PS1"
# rm /etc/resolv.conf
# echo 'nameserver 8.8.8.8' > /etc/resolv.conf
# apt update && apt upgrade