Subiguity forget to create partitions on the disk

[geole0]

Good morning.
I have been trying to install Ubuntu for several weeks. There are lots of various error messages.
But with the version of Friday March 8, I can select the disk, choose a ZFS type partition.
The installer tells me that it will create the four appropriate partitions and immediately starts copying the files. It will certainly last for hours without doing anything because he completely forgot to format the receiving disk.

ubuntu@ubuntu:~$ sudo fdisk -l /dev/sdc
Disk /dev/sdc: 465.76 GiB, 500107861504 bytes, 976773167 sectors
Disk model: Slim SL
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disklabel type: gpt
Disk identifier: BA8DD6F1-D17C-4C95-8DA1-1B9717729B73

Device Start End Sectors Size Type
/dev/sdc1 2048 976773119 976771072 465.8G Microsoft basic data
ubuntu@ubuntu:~$