Issue
The following warning can be observed during recovery on BIOS systems:
Installing GRUB2 boot loader...
Starting dbus.service - D-Bus System Message Bus...
[FAILED] Failed to start dbus.service - D-Bus System Message Bus.
See 'systemctl status dbus.service' for details.
Starting dbus.service - D-Bus System Message Bus...
[FAILED] Failed to start dbus.service - D-Bus System Message Bus.
See 'systemctl status dbus.service' for details.
Starting dbus.service - D-Bus System Message Bus...
[FAILED] Failed to start dbus.service - D-Bus System Message Bus.
See 'systemctl status dbus.service' for details.
Starting dbus.service - D-Bus System Message Bus...
[FAILED] Failed to start dbus.service - D-Bus System Message Bus.
See 'systemctl status dbus.service' for details.
Starting dbus.service - D-Bus System Message Bus...
[FAILED] Failed to start dbus.service - D-Bus System Message Bus.
See 'systemctl status dbus.service' for details.
[FAILED] Failed to start dbus.service - D-Bus System Message Bus.
See 'systemctl status dbus.service' for details.
# systemctl status dbus.service
× dbus.service - D-Bus System Message Bus
Loaded: loaded (/usr/lib/systemd/system/dbus.service; static)
Active: failed (Result: exit-code) since Wed 2024-04-03 14:02:23 EDT; 1min>TriggeredBy: × dbus.socket
Process: 10983 ExecStartPre=/bin/dbus-uuidgen --ensure (code=exited, status>
CPU: 6ms
RHEL 9 switched to dbus-broker but ReaR still expects the reference implementation of dbus which is no longer present on RHEL machines by default.