Hardware install of Ubuntu Studio 16.10 beta1 failed (this time without encrypting home folder)

[Set Hallstrom]

Tried again, without encrypting home folder.
Duplicate of 1616901. Opened a new one for the sake of keeping the uploaded log files.

ProblemType: Bug
DistroRelease: Ubuntu 16.10
Package: ubiquity 16.10.8
ProcVersionSignature: Ubuntu 4.4.0-9134.53-lowlatency 4.4.15
Uname: Linux 4.4.0-9134-lowlatency x86_64
ApportVersion: 2.20.3-0ubuntu7
Architecture: amd64
CasperVersion: 1.378
Date: Thu Aug 25 15:12:06 2016
InstallCmdLine: file=/cdrom/preseed/ubuntustudio.seed boot=casper only-ubiquity initrd=/casper/initrd.lz quiet splash --- keyboard-configuration/layoutcode=se
LiveMediaBuild: Ubuntu-Studio 16.10 "Yakkety Yak" - Alpha amd64 (20160824.2)
ProcEnviron:
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=en_US.UTF-8
 LC_NUMERIC=C.UTF-8
SourcePackage: ubiquity
UpgradeStatus: No upgrade log present (probably fresh install)