installation failure at "grub step", dell latitude e6430

[useResa]

At the end of installation grub failed to install on /dev/sda and /dev/sda1

ProblemType: Bug
DistroRelease: Ubuntu 12.04
Package: ubiquity 2.10.16
ProcVersionSignature: Ubuntu 3.2.0-23.36-generic 3.2.14
Uname: Linux 3.2.0-23-generic x86_64
ApportVersion: 2.0.1-0ubuntu5
Architecture: amd64
CasperVersion: 1.315
Date: Wed Aug 15 21:03:19 2012
InstallCmdLine: initrd=/casper/initrd.lz file=/cdrom/preseed/ubuntu.seed boot=casper quiet splash -- BOOT_IMAGE=/casper/vmlinuz
LiveMediaBuild: Ubuntu 12.04 LTS "Precise Pangolin" - Release amd64 (20120425)
ProcEnviron:
 TERM=unknown
 PATH=(custom, no user)
 LANG=en_US.UTF-8
 SHELL=/bin/bash
SourcePackage: grub-installer
UpgradeStatus: No upgrade log present (probably fresh install)

[useResa (rdrijsen)]

I installed Ubuntu from an USB stick that was created with unetbootin.
During the second trial of the installation I looked at the advanced partition editor and noticed that by default grub was going to be installed on /dev/sdb. Changing this to /dev/sda resulted in a succesful installation.

So basically not a big issue. Just the question remaining: why is the default not the same as the disk (partition) that is chosen for the installation?

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.