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10.6: How to install Win XP Pro Service Pack 3 in Boot Camp 3 Install
Snow Leopard only hintOver the weekend, in preparation for an upcoming review of the newest versions of Fusion and VirtualBox, I needed to set up a new Boot Camp partition on my MacBook Pro. Because Windows 7 isn't yet officially supported by Apple, and Vista isn't widely used, I chose to install XP Pro. My XP Pro disc is a Service Pack 2 release, so after booting into Windows, the system found and downloaded a bunch of updates to apply, chief among them Service Pack 3 (SP3).

The update process went smoothly, until the system tried to install SP3. The update process started, then died with this error:
An error occured while copying file osloader.ntd. Cannot copy file to destination directory. Click Retry to retry the operation or click Cancel.
At that point, the only solution was to bail on the update, and have Windows back out the changes it had already made. I tried a few times, but always got stuck at the same point. After a fair bit of digging and hair pulling, I found this Apple Support document that describes the problem, its cause, and (most importantly) the solution.

You can read the details in the support doc, but in case that ever vanishes, here's a quick recap. The problem is caused by Windows' insistence on writing the SP3 update to the first partition it sees. Because Boot Camp 3 mounts your Mac OS disk as a read-only disk in Windows, this is the first partition the system sees, and the SP3 install fails.



To get around this problem, you need to first back out of the SP3 installer (which involves a series of clicking various No, OK, and Cancel buttons).

Once out of the installer, you need to rename a file buried inside the Windows system files. On your Boot Camp partition, navigate into Windows » System 32 » drivers. Here you'll find a file named AppleMNT (it's a .sys file). Rename it to AppleMNT_keep, then restart Windows.

After the restart, verify that your Mac OS partition no longer shows in the My Computer window, then install SP3. When it's done and you've restarted, rename the AppleMNT_keep file to AppleMNT, and restart again to regain read-only access to your Mac OS partition. I'm glad to report this worked as described, and SP3 is now installed and running on my MacBook Pro.
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10.6: How to install Win XP Pro Service Pack 3 in Boot Camp 3 | 5 comments | Create New Account
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First try unplugging USB harddrives
Authored by: sr105 on Nov 02, '09 08:12:47AM

I had the same problem last weekend, but my fix was simply to unplug the USB harddrive still connected to my laptop. Then, it proceeded without error.



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10.6: How to install Win XP Pro Service Pack 3 in Boot Camp 3
Authored by: Typhoon14 on Nov 02, '09 08:51:05AM
The issue here as I recall is that Windows is trying to use space on the secondary volume to store the updates it is downloading. If the volume does not have write access, the update fails. You would think Windows update could do a simple thing like check to see if the partition it is trying to write to can actually be written to, but apparently that is too much to asků FYI, another option, and a handy thing to do in general is to simply slipstream the latest service pack into your Windows install CD and burn a new copy. This can save a lot of time and trouble post-install loading a million different OS updates.

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10.6: How to install Win XP Pro Service Pack 3 in Boot Camp 3
Authored by: robg on Nov 02, '09 09:58:51AM

What's interesting is that *all* the other updates run just fine, so I don't think it's a storage space issue. Not quite sure what's happening, just glad I found the fix (wish I would've found it before I wasted four hours fighting it, though!).

-rob.

Edited on Nov 16, '09 10:02:26AM by robg



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10.6: How to install Win XP Pro Service Pack 3 in Boot Camp 3
Authored by: asmeurer on Nov 02, '09 09:10:56AM
Because Boot Camp 3 mounts your Mac OS disk as a read-only disk in Windows, this is the first partition the system sees, and the SP3 install fails.
Wow. Good thing that it only mounts as read only. I can't imagine what kind of damage it would do if it were allowed to write to the volume.

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10.6: How to install Win XP Pro Service Pack 3 in Boot Camp 3
Authored by: brewmastre on Nov 13, '09 06:28:52AM

Another, in my opinion, easier method is to go to Disk Management (Right-click My Computer>Manage>Disk Management), right-click your Mac partition and choose 'Change drive letter and paths...', then remove the drive letter that is assigned to that partition. Reboot. The service pack installer will no longer see that drive. You can then assign a drive letter to the partition again after the install has succeeded.



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