Upon setup of new systems i usually run into an XServer failing to start, complaining about a missing dbus UUID. Running dbus-uuidgen --ensure solves this. From its manpage: #The primary usage of dbus-uuidgen is to run in the post-install script of a D-Bus package like this: dbus-uuidgen --ensure This will ensure that /var/lib/dbus/machine-id exists and has the uuid in it. It won't overwrite an existing uuid, since this id should remain fixed for a single machine until the next reboot at least.
It does. dbus-1.2.24-r2.ebuild: dbus-uuidgen --ensure="${ROOT}"/var/lib/dbus/machine-id dbus-1.4.0.ebuild: dbus-uuidgen --ensure="${ROOT}"/var/lib/dbus/machine-id Stabilization in bug 343323
