During OEM install got two empy partitions on hard drive

[Carla Sella]

While installing Ubuntu Utopic for this testcase: http://iso.qa.ubuntu.com/qatracker/testcases/1305/info at point 37 sudo sfdisk-l shows me two empyt partitions, see attached screenshot.
http://iso.qa.ubuntu.com/qatracker/milestones/325/builds/82063/testcases/1305/results/.
The test was carried out using Italian language, keyboard and Rome timezone.
The Virtualbox VM I was testing on had two virtual disks, and I was installing on the first one /dev/sda selecting to delete Ubuntu and re-install it as I had previously used that VM for other tests.

ProblemType: Bug
DistroRelease: Ubuntu 14.10
Package: ubiquity (not installed)
ProcVersionSignature: Ubuntu 3.16.0-23.30-generic 3.16.4
Uname: Linux 3.16.0-23-generic x86_64
ApportVersion: 2.14.7-0ubuntu8
Architecture: amd64
CurrentDesktop: Unity
Date: Tue Oct 21 21:21:53 2014
InstallCmdLine: file=/cdrom/preseed/ubuntu.seed boot=casper initrd=/casper/initrd.lz quiet splash -- debian-installer/language=it keyboard-configuration/layoutcode?=it oem-config/enable=true
InstallationDate: Installed on 2014-10-21 (0 days ago)
InstallationMedia: Ubuntu 14.10 "Utopic Unicorn" - Alpha amd64 (20141017)
SourcePackage: ubiquity
UpgradeStatus: No upgrade log present (probably fresh install)

[Ubuntu QA Website (ubuntuqa)]

This bug has been reported on the Ubuntu ISO testing tracker.

A list of all reports related to this bug can be found here:
http://iso.qa.ubuntu.com/qatracker/reports/bugs/1383865

[Phillip Susi (psusi)]

That is normal; there are always exactly 4 primary partitions in an msdos partition table. Any that you do not use are reported by sfdisk to be empty.