1  cd /etc
    2  cd apt
    3  vi sources.list
    4  apt-get update --allow-insecure-repositories
    5  apt-get install devuan-keyring --allow-unauthenticated
    6  apt-get update --allow-insecure-repositories
    7  apt-get update
    8  apt-get upgrade
    9  apt-get install eudev sysvinit-core
   10  apt-get -f install
   11  apt-get install init
   12  vi /etc/inittab 
   13  reboot
   14  cat /etc/issue
   15  cat /etc/devuan_version 
   16  apt-get upgrade
   17  apt-get dist-upgrade
   18  apt-get purge systemd libnss-systemd
   19  ps ax
   20  apt-get autoremove --purge
   21  apt-get autoclean

Additions:

/etc/inittab needs:

T0:23:respawn:/sbin/getty -L ttyS0 115200 vt100

/etc/network/interfaces needs network eth0