Sparse Bundle Images on external NTFS formatted drive

I'm currently in the process of re-arranging my own backup setup following on from my recent update to Snow Leopard. For this purpose i have the lend of a NTFS formatted external drive and used a large Sparse bundle disk image.
Under 10.5.7 with the latest MacFuse and and unknown version of NTFS-3G i had no problem using the sparse bundle images, they mounted, I could read and write, and the images where only unmounted when I explicitly ejected them.
Under 10.6 with the latest MacFuse and the latest NTFS-3G i have a very strange behavior.
Read and write works fine on the NTFS drive, as do regular disk images and old style sparse disk images.
However sparse bundle disk images will mount and then immediately dismount again. I have no problems mounting the sparse bundle images from HFS+ drives or when using the NTFS drive read only using apples drivers instead of MacFuser+NTFS3G.
The disk image dose not see the be the source of the problem; as any sparse bundle that opens fine on a HFS+ drive exhibits the behavior when moved onto the NTFS drive. Moving the image back onto a HFS+ drive allows the image to be mounted.
The problem is that I require to move some additional files onto the NTFS drive so I can reformat my backup drive
As a side note mounting using "hdiutil attach -readonly" seems to partially resolve the issue; the image will mount and stays mounted but it is read only.

I too am having this issue. Intel / 10.5.8 attached to an SMB share from Ubuntu Linux.
I ran a test of various image types, and while Sparse Image works, Sparse Bundle fails. Here are my logs. Happy to do some testing and log posting if anyone has a test theory to try.
9/5/09 2:20:29 PM Disk Utility[1822] Disk Utility started.
9/5/09 2:22:38 PM Disk Utility[1822] Creating Image “test1-rw-disk-image.dmg”
9/5/09 2:22:38 PM Disk Utility[1822] Initializing…
9/5/09 2:22:38 PM Disk Utility[1822] Creating…
9/5/09 2:22:39 PM Disk Utility[1822] Formatting…
9/5/09 2:22:39 PM com.apple.KernelEventAgent[37] KernelEventAgent: sysctl_queryfs: No such file or directory
9/5/09 2:22:39 PM Disk Utility[1822] Attaching…
9/5/09 2:22:40 PM Disk Utility[1822] Finishing…
9/5/09 2:22:41 PM Disk Utility[1822] Image “test1-rw-disk-image.dmg” created successfully.
9/5/09 2:23:21 PM Disk Utility[1822] Creating Image “test2-sparse-disk-image.sparseimage”
9/5/09 2:23:21 PM Disk Utility[1822] Initializing…
9/5/09 2:23:21 PM Disk Utility[1822] Creating…
9/5/09 2:23:21 PM Disk Utility[1822] Formatting…
9/5/09 2:23:21 PM com.apple.KernelEventAgent[37] KernelEventAgent: sysctl_queryfs: No such file or directory
9/5/09 2:23:21 PM Disk Utility[1822] Attaching…
9/5/09 2:23:23 PM Disk Utility[1822] Finishing…
9/5/09 2:23:24 PM Disk Utility[1822] Image “test2-sparse-disk-image.sparseimage” created successfully.
9/5/09 2:24:04 PM Disk Utility[1822] Creating Image “test3-sparse-bundle-image.sparsebundle”
9/5/09 2:24:04 PM Disk Utility[1822] Initializing…
9/5/09 2:24:04 PM Disk Utility[1822] Creating…
9/5/09 2:24:04 PM Disk Utility[1822] Formatting…
9/5/09 2:24:05 PM Disk Utility[1822] Finishing…
9/5/09 2:24:05 PM Disk Utility[1822] Unable to create “test3-sparse-bundle-image.sparsebundle”. (Operation not supported)
9/5/09 2:24:05 PM Disk Utility[1822]

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madhusudhan wrote:
Thanks for response V.K
Not sure what you mean what sparsebundle?
I want to know what sparse bundle you are talking about.
the sparse bundle with your filevaulted home directory which was originally located in /users/yourusername? or some other sparse bundle?
I was using FileVault. Probably I may have put the trailing slash (can't remember as it was almost two weeks back).
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Message was edited by: V.K.

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Hi David,
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http://social.technet.microsoft.com/Forums/en-US/windowsbackup/thread/444e8ea2-6417-45dc-83d4-f5ae45bbaa02
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Many thanks,
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Not sure how I can do this.
So I can see the image file is located in Users->MacFort (again no storage allocated to Iphoto...) :
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