Installing 14.10 from usb to Harddrive

[EngiBenchi]

No aditional information

ProblemType: Bug
DistroRelease: Ubuntu 14.10
Package: ubiquity 2.20.0
ProcVersionSignature: Ubuntu 3.16.0-23.31-generic 3.16.4
Uname: Linux 3.16.0-23-generic x86_64
ApportVersion: 2.14.7-0ubuntu8
Architecture: amd64
CasperVersion: 1.345
Date: Wed Jan 28 16:19:08 2015
InstallCmdLine: BOOT_IMAGE=/casper/vmlinuz.efi file=/cdrom/preseed/xubuntu.seed boot=casper quiet splash --
LiveMediaBuild: Xubuntu 14.10 "Utopic Unicorn" - Release amd64 (20141022.1)
ProcEnviron:
 PATH=(custom, no user)
 LANG=en_US.UTF-8
 SHELL=/bin/bash
SourcePackage: ubiquity
UpgradeStatus: No upgrade log present (probably fresh install)

[Ubuntu Foundations Team Bug Bot (crichton)]

Exception during installation:
Jan 28 15:18:55 xubuntu /plugininstall.py: Traceback (most recent call last):
Jan 28 15:18:55 xubuntu /plugininstall.py: File "/usr/share/ubiquity/plugininstall.py", line 1770, in <module>
Jan 28 15:18:55 xubuntu /plugininstall.py: install.run()
Jan 28 15:18:55 xubuntu /plugininstall.py: File "/usr/share/ubiquity/plugininstall.py", line 78, in wrapper
Jan 28 15:18:55 xubuntu /plugininstall.py: func(self)
Jan 28 15:18:55 xubuntu /plugininstall.py: File "/usr/share/ubiquity/plugininstall.py", line 241, in run
Jan 28 15:18:55 xubuntu /plugininstall.py: self.configure_bootloader()
Jan 28 15:18:55 xubuntu /plugininstall.py: File "/usr/share/ubiquity/plugininstall.py", line 1026, in configure_bootloader
Jan 28 15:18:55 xubuntu /plugininstall.py: "GrubInstaller failed with code %d" % ret)
Jan 28 15:18:55 xubuntu /plugininstall.py: ubiquity.install_misc.InstallStepError: GrubInstaller failed with code 1
Jan 28 15:18:55 xubuntu /plugininstall.py: