I've also run into this bug.

3.0.0-14 introduced a - precisely - 60 second delay into my boot-time.
Tried 3.0.0-15 from proposed, with the same result. The only way to
alleviate it was to roll-back to 3.0.0-13 (last kernel to not exhibit
this behaviour). I've also tried a 3.2 kernel from Pangolin, and this
too displays the delay.

I have my entire root file-system on LVM Including /boot), on GTP on an
SSD.

I've now tried the "--noudevsync" fix and can confirm it removes the
60-second boot-delay when running 3.0.0-14 (and presumably all later
kernels).

I'm interested in comment #2, which notes that this issue may be t
related to:

# Stop udevd, we'll miss a few events while we run init, but we catch up
udevadm control --timeout=61 --exit

...as this duration exactly matches the delay I experience.

I had registered a bug about this (909805), but I've now marked it as a
duplicate of this bug.

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https://bugs.launchpad.net/bugs/902491

Title:
  Severe regression with latest kernel update: 3.0.0-14.23 takes an
  unreasonable amount of time to boot due to udev

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