Bug 160245

*** Bug 160246 has been marked as a duplicate of this bug. ***

What sort of media are you installing from - CDs, images over a network, HTTP,
etc.?  Are you connected to a network while doing the installation?  If so, does
this network have a DHCP server?  The network configuration screen should have
given you the choice to have your hostname set by what you get from DHCP or
whatever you assign yourself.

FTP installation with a DHCP router in the server. I don't think it gave a
hostname to the box.I also don't really care about the hostname, but about the
warning. 

You can set a hostname on the network configuration screen.  What's more likely
to be the problem is that you're getting a hostname via dhcp that then isn't
able to be looked up (in which case you need to set a hostname manually).

Can you get the contents of /var/lib/dhcp/dhclient-eth0.leases?

lease {
  interface "eth0";
  fixed-address 192.168.178.23;
  option subnet-mask 255.255.255.0;
  option dhcp-lease-time 864000;
  option routers 192.168.178.1;
  option dhcp-message-type 5;
  option dhcp-server-identifier 192.168.178.1;
  option domain-name-servers 192.168.178.1;
  option dhcp-renewal-time 432000;
  option dhcp-rebinding-time 756000;
  option broadcast-address 192.168.178.255;
  renew 6 2005/6/25 17:25:52;
  rebind 4 2005/6/30 10:30:18;
  expire 5 2005/7/1 16:30:18;
}
lease {
  interface "eth0";
  fixed-address 192.168.178.23;
  option subnet-mask 255.255.255.0;
  option routers 192.168.178.1;
  option dhcp-lease-time 864000;
  option dhcp-message-type 5;
  option domain-name-servers 192.168.178.1;
  option dhcp-server-identifier 192.168.178.1;
  option dhcp-renewal-time 432000;
  option broadcast-address 192.168.178.255;
  option dhcp-rebinding-time 756000;
  renew 0 2005/6/26 00:49:18;
  rebind 5 2005/7/1 00:45:08;
  expire 6 2005/7/2 06:45:08;
}

Hmm, there's not a hostname there.  What are the contents of
/etc/sysconfig/network and /etc/hosts?

Now it is :
$ cat /etc/sysconfig/network
NETWORKING=yes
HOSTNAME=josephine.heim

$ cat /etc/hosts

# Do not remove the following line, or various programs
# that require network functionality will fail.
127.0.0.1       localhost.localdomain   localhost
127.0.0.1       josephine.heim          josephine

But: I changed /etc/hosts and have added the 2nd line manually. And in
system-config-network I changed "Get hostname from provider" (my translation
from German, might be called another way) to josephine. That didn't took away
the Message at the start of Gnome, so I added the 2nd line to /etc/hosts. I can
check ""Get hostname from provider" and post /var/lib/dhcp/dhclient-eth0.leases
once again.

(This is a mass update of bugs which have been in the NEEDINFO state unmodified
for over a year and have not been confirmed for a still supported version of
Fedora Core.)

Closing per lack of response to previous request for information.
This bug was originally filed against a much earlier version of Fedora
Core, and significant changes have taken place since the last version
for which this bug is confirmed.

Note that FC3 and FC4 are supported by Fedora Legacy for security
fixes only.  Please install a still supported version and retest.  If
it still occurs on FC5 or FC6, please reopen and assign to the correct
version.  Otherwise, if this a security issue, please change the
product to Fedora Legacy.  Thanks, and we are sorry that we did not
get to this bug earlier.