You wanted to know how many udev events and therefore dynamic behaviour a server could have at boot. I told you my experience. And of course the underlying sys

You wanted to know how many udev events and therefore dynamic behaviour a server could have at boot. I told you my experience. And of course the underlying system may fail, but actually it is more common to have udev, lvm and systemd fail. Just google cryptsetup, udev, boot, lvm, raid and problem in arbitrary combinations. Most of what you will find are bugs in udev, lvm or systemd. urandom is a workaround for stupid behaviour from systemd. Of course /dev/random isn't necessary, but that is beside the point, systemd again broke something by being boneheaded.