Comment 2 for bug 365712

Here is the error:

Log started: 2009-04-23 17:29:58
Setting up linux-image-2.6.28-11-server (2.6.28-11.42) ...
Running depmod.
update-initramfs: Generating /boot/initrd.img-2.6.28-11-server
Running postinst hook script /sbin/update-grub.
Searching for GRUB installation directory ... found: /boot/grub
Searching for default file ... found: /boot/grub/default
Testing for an existing GRUB menu.lst file ... found: /boot/grub/menu.lst
Searching for splash image ... none found, skipping ...
Found kernel: /boot/vmlinuz-2.6.28-11-server
Found kernel: /boot/vmlinuz-2.6.27-14-server
Found kernel: /boot/vmlinuz-2.6.27-7-generic
Found kernel: /boot/memtest86+.bin
Updating /boot/grub/menu.lst ... done

Examining /etc/kernel/postinst.d.
run-parts: executing /etc/kernel/postinst.d/dkms
 * Running DKMS auto installation service for kernel 2.6.28-11-server

 * nvidia (180.44)...
nvidia (180.44): Already installed on this kernel.
   ...done.
run-parts: executing /etc/kernel/postinst.d/nvidia-common
Traceback (most recent call last):
  File "/usr/bin/nvidia-detector", line 2, in <module>
    import NvidiaDetector
ImportError: No module named NvidiaDetector
run-parts: /etc/kernel/postinst.d/nvidia-common exited with return code 1
Failed to process /etc/kernel/postinst.d at /var/lib/dpkg/info/linux-image-2.6.2
8-11-server.postinst line 1002.
dpkg: error processing linux-image-2.6.28-11-server (--configure):
 subprocess post-installation script returned error exit status 2