Kernel build system installs modules in the wrong place

[Phil Pemberton]

Oneiric kernels seem to have an issue with the version numbering on the kernel build system not being set correctly:

$ uname -a
Linux cheetah 3.0.0-14-generic #23-Ubuntu SMP Mon Nov 21 20:28:43 UTC 2011 x86_64 x86_64 x86_64 GNU/Linux

$ head /lib/modules/3.0.0-14-generic/build/Makefile
VERSION = 3
PATCHLEVEL = 0
SUBLEVEL = 9
EXTRAVERSION =
NAME = Sneaky Weasel

What this means is that if you use Module-Assistant to build a driver (e.g. vloopback) or install WebcamStudio (http://www.ws4gl.org/) then the module will be installed in the wrong place -- specifically, the kernel's build system will install the modules in /lib/modules/3.0.9, when they should be installed in /lib/modules/3.0.0-14-generic.

This happens with the r8168 (Realtek Ethernet) driver, WebcamStudio, and several other modules.

ProblemType: Bug
DistroRelease: Ubuntu 11.10
Package: linux-image-3.0.0-14-generic 3.0.0-14.23
ProcVersionSignature: Ubuntu 3.0.0-14.23-generic 3.0.9
Uname: Linux 3.0.0-14-generic x86_64
NonfreeKernelModules: nvidia
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24.
ApportVersion: 1.23-0ubuntu4
Architecture: amd64
ArecordDevices:
 **** List of CAPTURE Hardware Devices ****
 card 0: XFi [Creative X-Fi], device 0: ctxfi [Front/WaveIn]
   Subdevices: 0/1
   Subdevice #0: subdevice #0
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC0: philpem 2273 F.... pulseaudio
                      philpem 2280 F.... xfce4-volumed
 /dev/snd/pcmC0D0c: philpem 2273 F...m pulseaudio
CRDA: Error: [Errno 2] No such file or directory
Card0.Amixer.info:
 Card hw:0 'XFi'/'Creative X-Fi 20K2 SB0880'
   Mixer name : '20K2'
   Components : ''
   Controls : 29
   Simple ctrls : 10
Date: Sun Jan 1 18:34:00 2012
HibernationDevice: RESUME=UUID=dbc4d840-7fcc-47f8-9b23-3039abb4055e
InstallationMedia: Xubuntu 11.10 "Oneiric Ocelot" - Release amd64 (20111012)
IwConfig:
 lo no wireless extensions.

 eth0 no wireless extensions.
MachineType: Gigabyte Technology Co., Ltd. Z68AP-D3
ProcEnviron:
 LANGUAGE=en_GB:en
 PATH=(custom, user)
 LANG=en_GB.UTF-8
 SHELL=/bin/bash
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.0.0-14-generic root=UUID=9eb32ed4-f0a3-4e50-9b8a-95b8f5be1b64 ro nomodeset splash vt.handoff=7
RelatedPackageVersions:
 linux-restricted-modules-3.0.0-14-generic N/A
 linux-backports-modules-3.0.0-14-generic N/A
 linux-firmware 1.60
RfKill:
 14: hci0: Bluetooth
  Soft blocked: no
  Hard blocked: no
SourcePackage: linux
StagingDrivers: mei
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 10/12/2011
dmi.bios.vendor: Award Software International, Inc.
dmi.bios.version: F6
dmi.board.name: Z68AP-D3
dmi.board.vendor: Gigabyte Technology Co., Ltd.
dmi.board.version: x.x
dmi.chassis.type: 3
dmi.chassis.vendor: Gigabyte Technology Co., Ltd.
dmi.modalias: dmi:bvnAwardSoftwareInternational,Inc.:bvrF6:bd10/12/2011:svnGigabyteTechnologyCo.,Ltd.:pnZ68AP-D3:pvr:rvnGigabyteTechnologyCo.,Ltd.:rnZ68AP-D3:rvrx.x:cvnGigabyteTechnologyCo.,Ltd.:ct3:cvr:
dmi.product.name: Z68AP-D3
dmi.sys.vendor: Gigabyte Technology Co., Ltd.

[Sam_ (and-sam)]

Not the case on later kernel e.g. 3.2.0-5 to -7.
$ head /lib/modules/3.2.0-7-generic/build/Makefile
VERSION = 3
PATCHLEVEL = 2
SUBLEVEL = 0
EXTRAVERSION = -rc7
NAME = Saber-toothed Squirrel