View source for How to install systemd-independent udisks2 and policykit before removing systemd from a Debian jessie/sid installation

Add additional repositorys to /etc/apt/sources.lst .
From [Devuan]:
  deb jessie main
or
  deb sid main
depending on wether you have jessie or sid.
You also need packages from [https://github.com/max2344?tab=repositories max2344], there are only packages for sid, but you can use them in jessie as well:
   
Reload your repositories by using synaptic or
  # aptitude update
Install the following packages from the first repository:
  udisks2 libudisks2-0 cgmanager libcgmanager0
Optional: To stop complaints about missing keys you can install ''devuan-keyring''.
Optional: To give the packages from devuan a higher preference you can install ''devuan-baseconf''.
Install the following packages from the second repository:
  libpolkit-agent-1-0 libpolkit-backend-1-0 libpolkit-gobject-1-0 policykit-1
Now you can purge systemd while still having a working udisks2 and policykit.
See also: [[How to remove systemd from a Debian jessie/sid installation]]