Boot "freezes" in recent Git

[intrigeri at boum.org (intrigeri)]

Hello,

when using recent live-initramfs Git, my custom usb-hdd image boot
stops at:

Begin: Mounting root file system ...
Begin: Running /scripts/live-premount ...
Done.

It might be sleeping, waiting for udevsettle or whatever: I waited
a few minutes and lost patience.

Git bisect told me b78a6ebcecb273908655f79d188bfc60452c4233 is the
first bad commit.

Any hint to help me debug this further?

Bye,
-- 
  intrigeri <intrigeri at boum.org>