Similar-ish - https://bugs.launchpad.net/ubuntu/+source/ubiquity/+bug/882882
So it might not be anything powerpc specific, but caused by debconf being locked by something else.
Similar-ish - https:/ /bugs.launchpad .net/ubuntu/ +source/ ubiquity/ +bug/882882
So it might not be anything powerpc specific, but caused by debconf being locked by something else.