I have a similar problem with intrepid 64 and hardy 64.
Before the installation, the computer had 2 disks of 500 GB, and the installation of hardy 64 working successfully.
We have replaced the primary disk with a 1 TB disk and the installation quit with ubiquity error report.
I used "ubiquity --no-migration-assistant" and the installation not working.
For solving this problem, we have disconnected the secondary 500 GB hard disk and only let the 1 TB disk.
With the 1 TB disk only, the installation of Intrepid 64 or Hardy 64 working successfully.
I have a similar problem with intrepid 64 and hardy 64.
Before the installation, the computer had 2 disks of 500 GB, and the installation of hardy 64 working successfully.
We have replaced the primary disk with a 1 TB disk and the installation quit with ubiquity error report.
I used "ubiquity --no-migration- assistant" and the installation not working.
For solving this problem, we have disconnected the secondary 500 GB hard disk and only let the 1 TB disk.
With the 1 TB disk only, the installation of Intrepid 64 or Hardy 64 working successfully.