I can confirm that going to synaptic package manager and reinstalling
dkms solved the problem for me as well.

On Thu, 2010-01-14 at 01:29 +0000, Rajinder Sandhu wrote:
> Dear Sir,
> As mentioned previously, the dkms was installed so manually installed and
> there after problem was solved. May be we need to add a line for
> installation of dkms which may be missing or not installing dkms
> Thanks,
> Rajinder Sandhu
> ===================================
> 
> On Thu, Jan 14, 2010 at 1:17 AM, Mario Limonciello
> <email address hidden>wrote:
> 
> > Fixed in 6f7beb210eeb5ebb216e5d9444a4983eea6fab9b
> >
> > ** Changed in: dkms (Ubuntu)
> >       Status: Triaged => Fix Committed
> >
> > ** Summary changed:
> >
> > - package linux-image-2.6.31-15-generic 2.6.31-15.49 failed to
> > install/upgrade: run-parts: /etc/kernel/postinst.d/dkms exited with return
> > code 1
> > + run-parts: /etc/kernel/postinst.d/dkms exited with return code 1 [ due to
> > removed package with lingering files in /etc ]
> >
> > --
> > run-parts: /etc/kernel/postinst.d/dkms exited with return code 1 [ due to
> > removed package with lingering files in /etc ]
> > https://bugs.launchpad.net/bugs/480055
> > You received this bug notification because you are a direct subscriber
> > of a duplicate bug.
> >
> > Status in “dkms” package in Ubuntu: Fix Committed
> >
> > Bug description:
> > Binary package hint: dkms
> >
> > apt-get update; apt-get upgrade
> >
> >    I seguenti pacchetti sono stati mantenuti alla versione attuale:
> >    linux-generic linux-headers-generic linux-image-generic
> >
> > sudo apt-get install linux-generic linux-headers-generic
> > linux-image-generic
> >
> > update-initramfs: Generating /boot/initrd.img-2.6.31-15-generic
> > Running postinst hook script /usr/sbin/update-grub.
> > Generating grub.cfg ...
> > Found linux image: /boot/vmlinuz-2.6.31-15-generic
> > Found initrd image: /boot/initrd.img-2.6.31-15-generic
> > Found linux image: /boot/vmlinuz-2.6.31-14-generic
> > Found initrd image: /boot/initrd.img-2.6.31-14-generic
> > Found memtest86+ image: /memtest86+.bin
> > done
> > Examining /etc/kernel/postinst.d.
> > run-parts: executing /etc/kernel/postinst.d/dkms
> > run-parts: failed to exec /etc/kernel/postinst.d/dkms: Exec format error
> > run-parts: /etc/kernel/postinst.d/dkms exited with return code 1
> > Failed to process /etc/kernel/postinst.d at
> > /var/lib/dpkg/info/linux-image-2.6.31-15-generic.postinst line 1002.
> > dpkg: errore nell'elaborare linux-image-2.6.31-15-generic (--configure):
> >  il sottoprocesso vecchio script di post-installation ha restituito lo
> > stato di errore 2
> >
> > ProblemType: Package
> > Architecture: amd64
> > Date: Tue Nov 10 16:04:01 2009
> > DistroRelease: Ubuntu 9.10
> > ErrorMessage: run-parts: /etc/kernel/postinst.d/dkms exited with return
> > code 1
> > InstallationMedia: Ubuntu 9.10 "Karmic Koala" - Release amd64 (20091027)
> > Package: linux-image-2.6.31-15-generic 2.6.31-15.49
> > ProcVersionSignature: Ubuntu 2.6.31-14.48-generic
> > SourcePackage: dkms
> > Title: package linux-image-2.6.31-15-generic 2.6.31-15.49 failed to
> > install/upgrade: run-parts: /etc/kernel/postinst.d/dkms exited with return
> > code 1
> > Uname: Linux 2.6.31-14-generic x86_64
> >
> > To unsubscribe from this bug, go to:
> > https://bugs.launchpad.net/ubuntu/+source/dkms/+bug/480055/+subscribe
> >
> 
> 
> -- 
> Warm regards,
> 
> Rajinder Sandhu
> Bangalore
> India
> 
> -- 
> run-parts: /etc/kernel/postinst.d/dkms exited with return code 1 [ due to removed package with lingering files in /etc ]
> https://bugs.launchpad.net/bugs/480055
> You received this bug notification because you are a direct subscriber
> of the bug.
> 
> Status in “dkms” package in Ubuntu: Fix Committed
> 
> Bug description:
> Binary package hint: dkms
> 
> apt-get update; apt-get upgrade
> 
>     I seguenti pacchetti sono stati mantenuti alla versione attuale:
>     linux-generic linux-headers-generic linux-image-generic
> 
> sudo apt-get install linux-generic linux-headers-generic linux-image-generic
> 
> update-initramfs: Generating /boot/initrd.img-2.6.31-15-generic
> Running postinst hook script /usr/sbin/update-grub.
> Generating grub.cfg ...
> Found linux image: /boot/vmlinuz-2.6.31-15-generic
> Found initrd image: /boot/initrd.img-2.6.31-15-generic
> Found linux image: /boot/vmlinuz-2.6.31-14-generic
> Found initrd image: /boot/initrd.img-2.6.31-14-generic
> Found memtest86+ image: /memtest86+.bin
> done
> Examining /etc/kernel/postinst.d.
> run-parts: executing /etc/kernel/postinst.d/dkms
> run-parts: failed to exec /etc/kernel/postinst.d/dkms: Exec format error
> run-parts: /etc/kernel/postinst.d/dkms exited with return code 1
> Failed to process /etc/kernel/postinst.d at /var/lib/dpkg/info/linux-image-2.6.31-15-generic.postinst line 1002.
> dpkg: errore nell'elaborare linux-image-2.6.31-15-generic (--configure):
>  il sottoprocesso vecchio script di post-installation ha restituito lo stato di errore 2
> 
> ProblemType: Package
> Architecture: amd64
> Date: Tue Nov 10 16:04:01 2009
> DistroRelease: Ubuntu 9.10
> ErrorMessage: run-parts: /etc/kernel/postinst.d/dkms exited with return code 1
> InstallationMedia: Ubuntu 9.10 "Karmic Koala" - Release amd64 (20091027)
> Package: linux-image-2.6.31-15-generic 2.6.31-15.49
> ProcVersionSignature: Ubuntu 2.6.31-14.48-generic
> SourcePackage: dkms
> Title: package linux-image-2.6.31-15-generic 2.6.31-15.49 failed to install/upgrade: run-parts: /etc/kernel/postinst.d/dkms exited with return code 1
> Uname: Linux 2.6.31-14-generic x86_64
> 
> To unsubscribe from this bug, go to:
> https://bugs.launchpad.net/ubuntu/+source/dkms/+bug/480055/+subscribe