[Bug 1054292] Re: [xorg-edgers] hid_generic module missing from initramfs

[Roderick Smith]

I'm not 100% positive I'm seeing the exact same issue, but I think I am.
In my case, the xorg-edgers PPA is not installed, though. I've got a
12.04.3 installation on a Lenovo Ideapad laptop with an encrypted root
filesystem. When I boot with a stock kernel, I'm able to type my
encrypted filesystem passphrase only on the laptop's built-in keyboard,
not on any USB keyboard I might have attached. The USB keyboard works
fine in my boot manager and once the system is fully booted (for the X
login screen, for instance); it's only when typing in the encrypted-
filesystem passphrase that the problem occurs.

I worked around the problem by compiling my own kernel and changing
several USB-related options changed from "m" to "y". I *THINK* that the
relevant one was CONFIG_HID_GENERIC or CONFIG_USB_HID, but I made
several simultaneous changes, so I can't be sure of that.

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https://bugs.launchpad.net/bugs/1054292

Title:
  [xorg-edgers] hid_generic module missing from initramfs

Status in “initramfs-tools” package in Ubuntu:
  Confirmed

Bug description:
  After enabling the xorg-edgers PPA on my Precise system, I could no
  longer type the password to unlock my encrypted root filesystem at
  boot.  It turns out there's a new module in linux-3.5.0-* called
  "hid_generic" that needs to be included in the initrd so that USB
  keyboards can be used during bootstrapping.

  The auto_add_modules() function in /usr/share/initramfs-tools/hook-
  functions from the Quantal version of initramfs-tools copies the
  module to the initramfs; see bug #1017991 and
  <https://launchpadlibrarian.net/108712220/initramfs-
  tools_0.103ubuntu0_0.103ubuntu0.1.diff.gz>.  Perhaps initramfs-tools
  should be backported to the xorg-edgers PPA.

  I worked around the problem by adding "hid_generic" to /etc/initramfs-
  tools/modules, but I don't know if this will cause problems if I
  switch back to a linux-3.2.0-* kernel (which doesn't have this
  module).

  $ cat /proc/version_signature 
  Ubuntu 3.5.0-15.22-generic 3.5.4
  $ lsb_release -rd
  Description:    Ubuntu 12.04.1 LTS
  Release:        12.04

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