Dropping Back Upgrade
 

Can anyone explain and easy way in Ubuntu to drop back to a previous upgrade. I'm using dapper beta 2 and todays upgrade resulted in me loosing my wifi card under networking so I would like to step back the upgrade and work on this problem at a later date.

1. you can dual boot, testing upgrades (like in beta releases) in one and keeping a main release in the other for ones main work.

2. you can run experimental things in a VM

3. you can uninstall the thing that didn't work and explicitly reinstall an earlier version.

You realise that if your upgrade included a kernel upgrade, you may need to recompile those wifi drivers?

How do you recompile the wifi drivers?

Presumably the same way you compiled them in the first place.

I didn't compile them they were set automatically in ubuntu. I installed the OS and they were there.

In otherwords, can i just remove the image in synaptic and would it reboot using the older image?

You say you had a wifi card that worked out of the box?
What exactly is missing - it may be as simple as apt-get install/upgrade <module name>.
What is this card?

Image? What image? The kernel bzimage?
Check the grub menue to see if you still have older kernels present. Use that to try booting the older kernel.

i don't know whats missing, the live cd works is there a way to get that wlan module over on the main system

i don't know whats missing, the live cd works is there a way to get that
wlan module over on the main system

Used grub and rebooted to older kernel have wifi back. Does this mean any future kernel upgrade will not recognize my wifi card?

I don't know, but Dapper's still in Beta. The whole point of the Beta release is testing. File a bug report on this, and maybe it'll be fixed before the June 1 release.