Description of problem:
System is not valuing DHCP hostname when installed using a different DHCP (IP|name) as the DHCP name gotten during installation is included in initramfs image.
Version-Release number of selected component (if applicable): RHEL 7.1
Steps to Reproduce:
1. Install Server via kickstart or from CD connected to DHCP server with network enabled to get hostname/ip from DHCP
2. Move server to different DHCP or ensure otherwise it get's a different name from DHCP
3. Boot Server and check hostname, still the one from initial installation is used
Still hostname set by DHCP during installation is used
Hostname from current DHCP should be used
having a look at the initramfs generated during install shows the name which was assigned by DHCP:
# lsinitrd -f /etc/hostname initramfs-3.10.0-327.el7.x86_64kdump.img
so current DHCP offered hostname is ignore as it has already a hostname assigned. Anaconda should not populate /etc/hostname during istallation so this does not get included in initramfs image and new hostname offered by DHCP is used
*** Bug 1342639 has been marked as a duplicate of this bug. ***
Verified on RHEL-7.3-20160719.1 with anaconda-184.108.40.206-1.el7.
Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.
For information on the advisory, and where to find the updated
files, follow the link below.
If the solution does not work for you, open a new bug report.