As I'm designing an embedded product, I really need fast boot.
between 20 and 25 seconds with standard Raspbian Wheezy from raspberrypi.org,
around 10 seconds with ArchLinuxArm distribution, mainly because it uses
around 15 seconds with Raspbian-ua-netinst, installed with Jessie, it uses
Question: What optimal boot time can we get with Raspbian?
Reason: I'd like to keep Raspbian instead of ArchLinuxArm for simplicity, but I would like to keep the "10 seconds boot time" of Arch.
Remark: It seems possible to have 2,52 seconds boot time.