installer does not find a network - but a live system does ... wtf?

[NoOp]

On 03/09/2011 03:35 PM, Andi Meier wrote:
> a newly installed Ubuntu 10.04 is working - well, almost. there is no
> network, I have a DHCP server but somehow the system would not
> receive any DHCPOFFERs - I don't know why. the DHCP server is up and
> running, the network is attached, all is well.

These may (or may not) be of help/use:
https://help.ubuntu.com/community/InternetAndNetworking
https://help.ubuntu.com/10.10/index.html
  https://help.ubuntu.com/10.10/internet/C/index.html
https://help.ubuntu.com/10.10/serverguide/C/index.html