This is a continuation of https://issues.redhat.com/browse/RHELAI-2555 

Based on ebelarte@redhat.com comment from RHELAI-2555 openinig this new issue

Hostname setting is not related to any of the above and I think it should have its own issue in Jira. Related:
https://gitlab.com/fedora/bootc/tracker/-/issues/25

To Reproduce Steps to reproduce the behavior:

1. Boot from ISO a BM or VM ( rhel-ai-intel-1.3.1-1734107537-x86_64.iso )
2. Configure root user, user, network, gw, dns and hostname
3. Install system
4. After the installation the hostname is not configured

5. [root@localhost instructlab]# 

1. while investigating the NetworkManager service there  were error messages related to dbus:

2. Dec 05 11:26:39 localhost NetworkManager[5287]: <info>  [1733397999.2333] NetworkManager (version 1.46.0-20.el9_4) is starting... (after a restart, boot:d7f8>
   Dec 05 11:26:39 localhost NetworkManager[5287]: <info>  [1733397999.2333] Read config: /etc/NetworkManager/NetworkManager.conf
   Dec 05 11:26:39 localhost NetworkManager[5287]: <error> [1733397999.2336] bus-manager: cannot connect to D-Bus: Could not connect: No such file or directory
   Dec 05 11:26:39 localhost NetworkManager[5287]: <info>  [1733397999.2336] exiting (error)
   Dec 05 11:26:39 localhost systemd[1]: NetworkManager.service: Main process exited, code=exited, status=1/FAILURE

Expected behavior

• <your text here>

Screenshots

• Attached Image 

Device Info (please complete the following information):

• Hardware Specs: [e.g. Apple M2 Pro Chip, 16 GB Memory, etc.]
• OS Version: [e.g. Mac OS 14.4.1, Fedora Linux 40]
• InstructLab Version: [output of \\\\{{{}ilab --version{}}}]
• Provide the output of these two commands:

  • [root@localhost instructlab]# sudo bootc status --format json | jq .status.booted.image.image.image
    "registry.redhat.io/rhelai1/bootc-intel-rhel9:1.3.1-1734010021"

Additional context

• <your text here>
• ...