I'm not sure whether this can provide any clues, but this Ubiquity oem-config crash rings a bit similar in that it's only happening when running under KVM, not when running on hardware:
https://bugs.launchpad.net/ubuntu/+source/ubiquity/+bug/1374193
Haven't tried it yet on Virtual Box, though.
I'm not sure whether this can provide any clues, but this Ubiquity oem-config crash rings a bit similar in that it's only happening when running under KVM, not when running on hardware:
https:/ /bugs.launchpad .net/ubuntu/ +source/ ubiquity/ +bug/1374193
Haven't tried it yet on Virtual Box, though.