Comment # 5 on bug 948369 from Peter Robertson

So it turns out that booting with the pad plugged in does not prevent boot, it
just slows it down a lot of prevents the ability to switch to the console
output from the plymouth screen.

It does not boot very fast, in fact it boots painfully slow. It gets stuck at
two points, one is something about device completion, and the other is about
lvm2 starting.

I do not have anything lvm on the computer.

Have attached logs etc.

systemd-analyze blame's top two entries are: 2min 145ms
systemd-udev-settle.service and 2min 139ms lvm2-activation-net.service.

Once again, there is no lvm on this PC.

Anything else I can provide, I'm not terribly familiar with systemd.

Have changed bug summary. Is that alright?