/usr/sbin/debootstrap \
  --keyring=/srv/nfs/pureos-archive-keyring.gpg \
  --arch=arm64 \
  --include=debian-keyring,mc,libc6-dev,libstdc++6,busybox,aptitude,etckeeper \
  byzantium /srv/nfs/pureos-arm64 https://repo.pureos.net/pureos /usr/share/debootstrap/scripts/amber

#  --no-merged-usr \
#  --foreign \

# aptitude search '?installed?not(?automatic)' | sed -n -e 's/^i[ \t]\+\([^ \t]*\)[ \t].*$/\1/p' >packages
# aptitude install `cat packages`

# chroot and
# /debootstrap/debootstrap --second-stage