I found the following error messages during boot after upgrading to Tumbleweed
20151002:
systemd-fstab-generator[104]: Failed to create mount unit file
/run/systemd/generator/sysroot.mount, as it already exists
systemd-udevd[250]: invalid key/value pair in file
/usr/lib/udev/rules.d/58-scsi-sg3_symlink.rules on line 17, starting at
kernel: CRAT table not found
dbus-daemon[908]: Unknown username "srvGeoClue" in message bus configuration
file
kdm_config[1415]: Multiple occurrences of key 'Language' in section
[X-*-Greeter] of /usr/share/kde4/confi
kdm_greet[1507]: Cannot load /usr/share/kde4/apps/kdm/faces/.default.face:
Bestand of map bestaat niet

There was also a message, right after the grup2 screen about a device /r
..something.. Will report later.