[Solved] Error in installation

[wonder]

Hi,
I go to made a fresh install of Maui2.
In the start of installation, after partition my hard disk, I have this error:



I don't use a cdrom, I use a usb pen.

I try with differents usb's, have the same problem.

Some days ago, a friend, indicate to me that have the same problem.

If my friend select automatic partition, install without problems.

I don't select automatic partition, I partition manually.

Regards.

Edit: I create partitions in ext4.