Installing 17.04 in asrock beebox

[hornetster]

Several disks:
32GB winth Win10 installed (boot disk)
128GB installing ubuntu on 1st 20gb/home on next 20gb
2TB data disk...

ProblemType: Bug
DistroRelease: Ubuntu 17.04
Package: ubiquity 17.04.9 [modified: lib/partman/automatically_partition/question]
ProcVersionSignature: Ubuntu 4.10.0-19.21-generic 4.10.8
Uname: Linux 4.10.0-19-generic x86_64
ApportVersion: 2.20.4-0ubuntu4
Architecture: amd64
Date: Sun May 7 10:51:22 2017
InstallCmdLine: file=/cdrom/multiboot/ubuntu-17.04-desktop-amd64/preseed/ubuntu.seed boot=casper only-ubiquity cdrom-detect/try-usb=true persistent persistent-path=/multiboot/ubuntu-17.04-desktop-amd64 noprompt floppy.allowed_drive_mask=0 ignore_uuid live-media-path=/multiboot/ubuntu-17.04-desktop-amd64/casper/ initrd=/multiboot/ubuntu-17.04-desktop-amd64/casper/initrd.lz quiet splash ---
ProcEnviron:
 LANGUAGE=en_AU.UTF-8
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=en_AU.UTF-8
 LC_NUMERIC=C.UTF-8
SourcePackage: grub-installer
UpgradeStatus: No upgrade log present (probably fresh install)