package linux-backports-modules-wireless-2.6.32-21-server (not installed) failed to install/upgrade: trying to overwrite '/lib/udev/compat_firmware.sh', which is also in package linux-backports-modules-wireless-2.6.32-21-preempt 0:2.6.32-21.11

[cshannon1077]

10.04 64 bit. I'm trying to get wireless and usb working.
I tried the link to the website with the files, and got the message to use the software channel.
I installed the pre-empt version ok. Trying to install the server gave this error.(unable to install.)
I have no idea if I need 2.6.32.21 and also 2.6.32.22 and both pre-empt and server.

ProblemType: Package
DistroRelease: Ubuntu 10.04
Package: linux-backports-modules-wireless-2.6.32-21-server (not installed)
ProcVersionSignature: Ubuntu 2.6.32-22.33-generic 2.6.32.11+drm33.2
Uname: Linux 2.6.32-22-generic x86_64
AptOrdering:
 linux-image-2.6.32-21-server: Install
 linux-backports-modules-wireless-2.6.32-21-server: Install
 linux-image-2.6.32-21-server: Configure
 linux-backports-modules-wireless-2.6.32-21-server: Configure
Architecture: amd64
Date: Wed May 19 11:47:50 2010
ErrorMessage: trying to overwrite '/lib/udev/compat_firmware.sh', which is also in package linux-backports-modules-wireless-2.6.32-21-preempt 0:2.6.32-21.11
InstallationMedia: Ubuntu 9.10 "Karmic Koala" - Release amd64 (20091027)
SourcePackage: linux-backports-modules-2.6.32
Title: package linux-backports-modules-wireless-2.6.32-21-server (not installed) failed to install/upgrade: trying to overwrite '/lib/udev/compat_firmware.sh', which is also in package linux-backports-modules-wireless-2.6.32-21-preempt 0:2.6.32-21.11

[cshannon1077 (cshannon1077)]

I have since managed to download and install the Realtek driver I needed, and I have wireless working.
Question is do I need to do anything about this? Uninstall anything?
Thanks for your help,.

[Jean-Baptiste Lallement (jibel)]

Thank you for taking the time to report this bug and helping to make Ubuntu better. This particular bug has already been reported and is a duplicate of bug 535132, so it is being marked as such. Please look at the other bug report to see if there is any missing information that you can provide, or to see if there is a workaround for the bug. Additionally, any further discussion regarding the bug should occur in the other report. Please continue to report any other bugs you may find.