Inaccurate free space calculation for NTFS partition

Bug #1154405 reported by Keith Z-G
This bug affects 1 person
Affects Status Importance Assigned to Milestone
ubiquity (Ubuntu)

Bug Description

On a Windows 7 laptop (Acer Aspire 6920G) running Windows 7 64-bit, I had deleted a bunch of data from within Windows, then rebooted to install a dual-boot with the Kubuntu Raring Beta 1. However, the option to auto-resize was missing, and the installer appeared to believe that the main partition was 93% full, which sounds about what it was before I cleaned it up from within Windows.

Windows and GParted, by contrast, peg the free space at ~60%.

In Windows, Disk Management appears to show the disk as being "Basic", presumably meaning it *isn't* under the purview of the Logical Disk Manager. A screenshot of this can be seen at or as the attachment (not sure which is better; apologies, first time actually opening a bug!).

ProblemType: Bug
DistroRelease: Ubuntu 13.04
Package: ubiquity [modified: lib/partman/automatically_partition/question]
ProcVersionSignature: Ubuntu 3.8.0-12.21-generic 3.8.2
Uname: Linux 3.8.0-12-generic x86_64
ApportVersion: 2.9.1-0ubuntu1
Architecture: amd64
CasperVersion: 1.330
Date: Wed Mar 13 02:05:02 2013
InstallCmdLine: file=/cdrom/preseed/kubuntu.seed boot=casper maybe-ubiquity initrd=/casper/initrd.lz quiet splash --
LiveMediaBuild: Kubuntu 13.04 "Raring Ringtail" - Alpha amd64 (20130311.1)
MarkForUpload: True
 PATH=(custom, no user)
SourcePackage: ubiquity
UpgradeStatus: No upgrade log present (probably fresh install)

Revision history for this message
Keith Z-G (keithzg) wrote :
Revision history for this message
Ubuntu QA Website (ubuntuqa) wrote :

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

A list of all reports related to this bug can be found here:

tags: added: iso-testing
tags: added: kubuntu
Changed in ubiquity (Ubuntu):
importance: Undecided → Medium
Revision history for this message
Marcus Tomlinson (marcustomlinson) wrote :

This release of Ubuntu is no longer receiving maintenance updates. If this is still an issue on a maintained version of Ubuntu please let us know.

Changed in ubiquity (Ubuntu):
status: New → Incomplete
Revision history for this message
Launchpad Janitor (janitor) wrote :

[Expired for ubiquity (Ubuntu) because there has been no activity for 60 days.]

Changed in ubiquity (Ubuntu):
status: Incomplete → Expired
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