Comment 2 for bug 292606

I have exactly the same error here. I tried to build my own kernel. All is ok, but when I try to install the *.deb, I get the error during the package configuration.

There is my configuration :

- Ubuntu 8.10. Installed from scratch, no upgrades from a previous version.
- Nvidia Driver version : 177.80 (from official Ubuntu repositories)
- Kernel sources from official Ubuntu repositories, with the phc patch

There is my error :
-------
Examining /etc/kernel/postinst.d.
run-parts: executing /etc/kernel/postinst.d/dkms
run-parts: executing /etc/kernel/postinst.d/nvidia-common
run-parts: /etc/kernel/postinst.d/nvidia-common exited with return code 20
Failed to process /etc/kernel/postinst.d at /var/lib/dpkg/info/linux-image-2.6.27custom.postinst line 1181.
dpkg: error processing linux-image-2.6.27custom (--configure):
 subprocess post-installation script returned error exit status 2
Errors were encountered while processing:
 linux-image-2.6.27custom
E: Sub-process /usr/bin/dpkg returned an error code (1)
A package failed to install. Trying to recover:
Setting up linux-image-2.6.27custom (2.6.27custom-10.00.Custom) ...
Running depmod.
Finding valid ramdisk creators.
Using mkinitramfs-kpkg to build the ramdisk.
initrd.img(/boot/initrd.img-2.6.27custom
) points to /boot/initrd.img-2.6.27custom
 (/boot/initrd.img-2.6.27custom) -- doing nothing at /var/lib/dpkg/info/linux-image-2.6.27custom.postinst line 583.
vmlinuz(/boot/vmlinuz-2.6.27custom
) points to /boot/vmlinuz-2.6.27custom
 (/boot/vmlinuz-2.6.27custom) -- doing nothing at /var/lib/dpkg/info/linux-image-2.6.27custom.postinst line 583.
Running postinst hook script 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-2.6.27.4.old
Found kernel: /boot/vmlinuz-2.6.27.4
Found kernel: /boot/vmlinuz-2.6.27custom
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
run-parts: executing /etc/kernel/postinst.d/nvidia-common
run-parts: /etc/kernel/postinst.d/nvidia-common exited with return code 20
Failed to process /etc/kernel/postinst.d at /var/lib/dpkg/info/linux-image-2.6.27custom.postinst line 1181.
dpkg: error processing linux-image-2.6.27custom (--configure):
 subprocess post-installation script returned error exit status 2
Errors were encountered while processing:
 linux-image-2.6.27custom
-----

Has anybody an idea about this bug?

Regards