[Bug 1042177] [NEW] XP not detected by GRUB if Windows7 installed after XP

[YannUbuntu]

Public bug reported:

Originally reported here:
http://ubuntuforums.org/showthread.php?t=2046134

User installed XP then Win7. os-prober detects Win7 but not XP.

For information:

sdb1:
__________________________________________________________________________

    File system:       ntfs
    Boot sector type:  Windows Vista/7: NTFS
    Boot sector info:  No errors found in the Boot Parameter Block.
    Operating System:  Windows XP
    Boot files:        /boot.ini /bootmgr /Boot/BCD /ntldr /NTDETECT.COM

sdb2:
__________________________________________________________________________

    File system:       ntfs
    Boot sector type:  Windows XP: NTFS
    Boot sector info:  No errors found in the Boot Parameter Block.
    Operating System:  Windows 7
    Boot files:        /Windows/System32/winload.exe


### BEGIN /etc/grub.d/30_os-prober ###
menuentry "Windows 7 (loader) (on /dev/sdb1)" --class windows --class os {
	insmod part_msdos
	insmod ntfs
	set root='(hd1,msdos1)'
	search --no-floppy --fs-uuid --set=root 28E826DCE826A7D0
	chainloader +1
}

(see the thread for more information)

** Affects: os-prober (Ubuntu)
     Importance: Undecided
         Status: New

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https://bugs.launchpad.net/bugs/1042177

Title:
  XP not detected by GRUB if Windows7 installed after XP

Status in “os-prober” package in Ubuntu:
  New

Bug description:
  Originally reported here:
  http://ubuntuforums.org/showthread.php?t=2046134

  User installed XP then Win7. os-prober detects Win7 but not XP.

  For information:

  sdb1:
  __________________________________________________________________________

      File system:       ntfs
      Boot sector type:  Windows Vista/7: NTFS
      Boot sector info:  No errors found in the Boot Parameter Block.
      Operating System:  Windows XP
      Boot files:        /boot.ini /bootmgr /Boot/BCD /ntldr /NTDETECT.COM

  sdb2:
  __________________________________________________________________________

      File system:       ntfs
      Boot sector type:  Windows XP: NTFS
      Boot sector info:  No errors found in the Boot Parameter Block.
      Operating System:  Windows 7
      Boot files:        /Windows/System32/winload.exe

  
  ### BEGIN /etc/grub.d/30_os-prober ###
  menuentry "Windows 7 (loader) (on /dev/sdb1)" --class windows --class os {
  	insmod part_msdos
  	insmod ntfs
  	set root='(hd1,msdos1)'
  	search --no-floppy --fs-uuid --set=root 28E826DCE826A7D0
  	chainloader +1
  }

  (see the thread for more information)

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