Could there be some problem with the iso image in use? Have you verified that it's MD5SUM was good?
Also, this may actually be issues with the memory failing; does a recent vivid image behave the same way?
Could there be some problem with the iso image in use? Have you verified that it's MD5SUM was good?
Also, this may actually be issues with the memory failing; does a recent vivid image behave the same way?