Dual-Boot issue w/ Red Hat Enterprise Linux 4 WS AMD62

Discussion in 'Windows 64bit' started by Guest, Jan 27, 2006.

  1. Guest

    Guest Guest


    I have a dual-boot WinXP Pro x64 PC that I loaded RHEL 4 WS AMD64 onto.

    When I select Windows it seems to freeze when it goes into protected mode.
    The ACPI*.* is the last file loaded.

    If I select safe mode it will boot Windows but not Safe Mode w/ Network

    DISK 1 is a SATA 250GB [one partition] with Windows x64
    DISK 2 is a SATA 250GB with RHEL 4 WS AMD64 on it. GRUB is on the first
    partition of this disk.

    Any thoughts?

    Thanks in advance.


    PS: Another AMD64 PC I have works great but it uses the 32-bit version of
    Windows XP.
    Guest, Jan 27, 2006
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  2. The only thing I can think of right now, is if you installed your Windows
    using 32bit network drivers? Or if you made installation changes, to one OS
    or the other, that accessed the MBR?

    Are both machines set up the same? Two HD's?
    Both booting into Windows via GRUB?

    (Have you tried turning off ACPI in BIOS?)

    Tony. . .
    Tony Sperling, Jan 27, 2006
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  3. Guest

    Rick Guest

    What order did you install the OS's in? If you installed any versions
    of Windows after RedHat, Windows likes to destroy the MBR and write its
    own. Microsoft does not believe in compatibility with other OS's!

    You should install RedHat last.
    Rick, Jan 27, 2006
  4. Guest

    Guest Guest

    Hi Tony,

    The two PCs are setup the same EXCEPT WinXP64 on one.

    I have not tried disabling ACPI in BIOS as that is know to cause HAL issues.


    Guest, Jan 28, 2006
  5. Guest

    Guest Guest

    I loaded WinXP63 first then RHEL 4 WS AMD64.

    Guest, Jan 28, 2006
  6. It wouldn't hurt to try and boot that way once, though. Could indicate a
    need for a BIOS update?

    O.K. did you configure GRUB yourself to have it boot Windows, or did the RH
    installation find it on it's own? Perhaps you need to re-install it???

    There is a rather complete GRUB manual somewhere - I think GNU.ORG, if you
    don't already have it.

    Tony. . .
    Tony Sperling, Jan 28, 2006
  7. I would contact Redhat about this since they are a commercial distribution,
    its possible that they might have support information dual booting other 64
    bit operating systems such as Windows XP Professional x64.
    Extended64 | http://www.extended64.com
    Blog | http://www.extended64.com/blogs/andre
    FAQ for MS AntiSpy http://www.geocities.com/marfer_mvp/FAQ_MSantispy.htm
    Andre Da Costa, Jan 29, 2006
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