[systemd-devel] needed steps to get rebootless upgrade

[Vasiliy Tolstov]

Hi all. I'm very interesting on creating system like cromeos that can
do upgrade without reboot.
In case of using systemd - what i need to do?
I have two disk (ramdisk) system1 and system2 that have old (system1)
and new (system2) filesystems.
How can i get upgrade system1 with system2?
As i understand i need to reload each running service to use new
system2 for it?
Can somebody says me more detailed steps to get this?

-- 
Vasiliy Tolstov,
e-mail: v.tolstov at selfip.ru
jabber: vase at selfip.ru