Just in case it helps -
I had the 141 error too trying to install kubuntu 10.10 daily build 20 Sep into a virtualbox VM.
I think the Disk setup has not got permission to create partitions. Lack of "sudo"?
Boot the live CD and open a terminal
sudo partman
and then go through, auto creating partitions and filesystems (but you might want to be a bit selective).
The run the install, and it works.
Just in case it helps -
I had the 141 error too trying to install kubuntu 10.10 daily build 20 Sep into a virtualbox VM.
I think the Disk setup has not got permission to create partitions. Lack of "sudo"?
Boot the live CD and open a terminal
sudo partman
and then go through, auto creating partitions and filesystems (but you might want to be a bit selective).
The run the install, and it works.