Description of problem:

With RHEL9 DVD, booting a system on the DVD while specifying a kickstart (e.g. using a OEMDRV disk), shows that even though the kickstart contains a "network" directive, the network doesn't get configured prior to executing %pre script, causing it impossible to download kickstart "includes" for example.

Before switching root, we can see that "parse-kickstart" generates the /etc/cmdline.d/80-kickstart.conf snippet properly:
-------- 8< ---------------- 8< ---------------- 8< ---------------- 8< --------
switch_root:/# cat /etc/cmdline.d/80-kickstart.conf 
ip=192.168.0.250::192.168.0.1:255.255.255.0:test:enp1s0:none: nameserver=192.168.0.1 bootdev=enp1s0
-------- 8< ---------------- 8< ---------------- 8< ---------------- 8< --------

After switching root, the network is configured, but after %pre executed, as shown with the kickstart below:
-------- 8< ---------------- 8< ---------------- 8< ---------------- 8< --------
network --noipv6 --bootproto static --ip 192.168.0.250 --netmask 255.255.255.0 --gateway 192.168.0.1 --nameserver 192.168.0.1 --device=enp1s0 --hostname=test

%pre --log=/tmp/ks-pre.log
echo HELLO
ip r
echo DONE
%end
-------- 8< ---------------- 8< ---------------- 8< ---------------- 8< --------

%pre execution output:
-------- 8< ---------------- 8< ---------------- 8< ---------------- 8< --------
[anaconda root@localhost ~]# cat /tmp/ks-pre.log 
HELLO
DONE
-------- 8< ---------------- 8< ---------------- 8< ---------------- 8< --------

After %pre execution, we have the network configured properly:
-------- 8< ---------------- 8< ---------------- 8< ---------------- 8< --------
[anaconda root@localhost ~]# ip r
default via 192.168.0.1 dev enp1s0 proto static metric 100 
192.168.0.0/24 dev enp1s0 proto kernel scope link src 192.168.0.250 metric 100 
-------- 8< ---------------- 8< ---------------- 8< ---------------- 8< --------

Additionally (and related somehow): if DHCP is present on the network, at time of %pre execution, we have an IP address, but this is an IP address delivered by the DHCP server, not what got specified as "network" directive!

This works fine on RHEL8. The main difference with RHEL8 is "ifcfg-xxx" snippets are not created anymore by parse-kickstart.

Version-Release number of selected component (if applicable):

RHEL9/RHEL9.1

How reproducible:

Always

Steps to Reproduce:
1. Create a OEMDRV disk with kickstart above
2. Start the installation using the DVD

Actual results:

No IP address in %pre configured / Unexpected IP address if DHCP is on the network

Expected results:

IP address specified by "network" directive