[Bug 772470] Re: os-prober doesn't detect Windows partition but the recovery partition instead

[Colin Watson]

In that case, this is correct behaviour from os-prober.  It's supposed
to return the thing you can boot.  In this case, the Windows boot loader
is on sda2, so it returned that.

Ubiquity is going to need to change to track down the actual Windows
root filesystem associated with a boot partition (somewhat like the way
linux-boot-prober tracks down more information for Linux boot
partitions).  However, I'm going to bump this to P-series, as I think
this is going to be too invasive for Oneiric, although I realise it's a
problem.

** Package changed: os-prober (Ubuntu Oneiric) => ubiquity (Ubuntu
Oneiric)

** Changed in: ubiquity (Ubuntu Oneiric)
       Status: Confirmed => Won't Fix

** Changed in: ubiquity (Ubuntu Oneiric)
     Assignee: Colin Watson (cjwatson) => (unassigned)

** Also affects: ubiquity (Ubuntu P-series)
   Importance: Undecided
       Status: New

** Changed in: ubiquity (Ubuntu P-series)
       Status: New => Triaged

** Changed in: ubiquity (Ubuntu P-series)
   Importance: Undecided => High

** Changed in: ubiquity (Ubuntu P-series)
     Assignee: (unassigned) => Ubuntu Installer Team (ubuntu-installer)

** Changed in: ubiquity (Ubuntu)
     Assignee: Colin Watson (cjwatson) => Ubuntu Installer Team (ubuntu-installer)

** Changed in: ubiquity (Ubuntu)
       Status: Confirmed => Triaged

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https://bugs.launchpad.net/bugs/772470

Title:
  os-prober doesn't detect Windows partition but the recovery partition
  instead

Status in “ubiquity” package in Ubuntu:
  Triaged
Status in “ubiquity” source package in Oneiric:
  Won't Fix
Status in “ubiquity” source package in p-series:
  Triaged

Bug description:
  Binary package hint: os-prober

  With the following setup
  Disque /dev/sda : 38913 cylindres, 255 têtes, 63 secteurs/piste
  Unités= cylindres de 8225280 octets, blocs de 1024 octets, décompte à partir de 0

     Périph Amor Début     Fin   #cyls    #blocs    Id  Système
  /dev/sda1          0+     12      13-    104391   de  Dell Utility
  /dev/sda2   *     13+   1925-   1913-  15360000    7  HPFS/NTFS
  /dev/sda3       1925+  19790-  17866- 143505752    7  HPFS/NTFS
  /dev/sda4      19790+  38913-  19123- 153598976    7  HPFS/NTFS

  sda1: Manufacturer utilities
  sda2: Recovery
  sda3: Windows7
  sda4: Additional primary partition

  os-prober returns sda2 instead of sda3. 
  This has the following consequences with ubiquity:
  1. Wubi is not proposed as an option
  2. Migration assistant is skipped

  Excepted sda4 this is the default partitioning scheme from the
  manufacturer

  ProblemType: Bug
  DistroRelease: Ubuntu 11.04
  Package: os-prober 1.44ubuntu1
  ProcVersionSignature: Ubuntu 2.6.38-8.42-generic 2.6.38.2
  Uname: Linux 2.6.38-8-generic x86_64
  Architecture: amd64
  Date: Thu Apr 28 17:34:56 2011
  InstallationMedia: Ubuntu 11.04 "Natty Narwhal" - Release amd64 (20110427.1)
  ProcEnviron:
   LANGUAGE=fr_FR:en
   LANG=fr_FR.UTF-8
   SHELL=/bin/bash
  SourcePackage: os-prober
  UpgradeStatus: No upgrade log present (probably fresh install)

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