Public bug reported:

Binary package hint: grub2

For some reasons I cannot successfully boot windows 7 from GRUB2. The
following entry was added in 40_custom and ran update-grub.

40_custom:
menuentry "Microsoft Windows 7 TEST" {
    insmod ntfs
    set root=(hd1,0)
    search --no-floppy --fs-uuid --set A4AC0BADAC0B78D6
    drivemap -s (hd0) ${root}
    chainloader +1
}


The scenario is this:
- Both hard drives are SATA.
- Ubuntu is installed on SATA0 mobo port and is being detected by gparted in sda
- Win7 is installed on SATA1 mobo port and is being detected by gparted in sdb
- When running update-grub, no errors are being reported and I can see that 
win7 got detected.
- Finally, when choosing win7 from the grub2 list... the system appears to 
start but freezes when trying to load windows.

If I disconnect the SATA0 hard disk (Ubuntu) and turn on my computer...
windows 7 loads without any problems.

ProblemType: Bug
DistroRelease: Ubuntu 10.04
Package: grub-pc 1.98-1ubuntu5
ProcVersionSignature: Ubuntu 2.6.32-21.32-generic 2.6.32.11+drm33.2
Uname: Linux 2.6.32-21-generic x86_64
Architecture: amd64
Date: Mon May  3 15:42:08 2010
InstallationMedia: Ubuntu 10.04 LTS "Lucid Lynx" - Release amd64 (20100429)
ProcEnviron:
 LANG=en_US.utf8
 SHELL=/bin/bash
SourcePackage: grub2

** Affects: grub2 (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: amd64 apport-bug lucid

-- 
GRUB2 does not boot windows7 when installed in a different hard drive
https://bugs.launchpad.net/bugs/574732
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