Background: I tried to install i3 openrc with auto-install of free vid drivers (nouveau-bumblebee hybrid) twice yesterday. Xorg fails on first reboot. An i3 systemd install immediately after on different partitions, same laptop works fine.
I guess this an OpenRC problem rather than a Manjaro Architect problem.
The interim solution:
login as user and
sudo groupadd -r -g 81 dbus >/dev/null sudo useradd -r -u 81 -d / -g dbus -s /usr/bin/nologin dbus >/dev/null sudo shutdown -r now
and I can login through the gui, launch Palemoon and browse the net etc.
rc-status told me that elogind and dbus were stopped. I checked rc-update and both were already added to default runlevels. Couldn't rc-service start them because there is no dbus UID or GID.
After googling I found the arch package for dbus-nosystemd, git cloned it on another pc and cut and pasted the above commands from the .install file .