This definitely shouldn't happen, but we need logs from you in order to make even an educated guess at the problem. Please attach /var/log/installer/syslog and /var/log/installer/partman to this bug.
This definitely shouldn't happen, but we need logs from you in order to make even an educated guess at the problem. Please attach /var/log/ installer/ syslog and /var/log/ installer/ partman to this bug.