[Bug 525643] Re: Grub2 detects Windows 7 when only Windows XP is installed

[Asapuntz]

Similar problem - triple boot system with

XP SP3
Ubuntu 12.10
W8 RP (build 8400)

Ubuntu and XP are on the boot drive, but when W8 was installed on its
own drive, it overwrote grub and installed Windows Boot Manager in the
XP partition. I restored Grub2, then switched the XP paritition from WBM
back to NTLDR using

bootsect.exe /nt52 D:  [from a W8 administrator System32\cmd.exe]

However, grub-update still recognizes the XP partition as Windows 8
(loader), resulting in 2 such entries in the boot menu. One runs XP, one
runs W8, but you have to remember which is which.

It would be much cleaner if grub-update could read the volume/master
boot code to figure out which is active, rather than "guessing" based on
the presence (and contents) of bootmgr / ntldr files?

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https://bugs.launchpad.net/bugs/525643

Title:
  Grub2 detects Windows 7 when only Windows XP is installed

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

Bug description:
  Binary package hint: grub2

  On a drive containing Windows XP and Ubuntu Lucid, grub2 (grub-update)
  detects Windows 7 instead of XP. Booting into XP works fine, though.

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