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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.

Mac Book Pro, Mac OS X (10.6), MacFuse 2.0.3 + NTFS-3G 2009.4.4

Posted on Aug 30, 2009 5:03 PM

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11 replies

Aug 31, 2009 6:19 AM in response to matthiash

FYI, this issue also appears to extend to sparse bundles located on AFP network shares (which happens to be where my TM backups are located !)

Salient entries in the log appear to be;

31.08.09 11:18:21 PM hdiejectd[49324] running
31.08.09 11:18:22 PM diskimages-helper[49319] terminating disk1 - image is no longer available
31.08.09 11:18:22 PM fseventsd[40] failed to create the uuid file /Volumes/<volumename>/.fseventsd/fseventsd-uuid
31.08.09 11:18:22 PM kernel disk1: media is not present.

Any suggestions would be appreciated.

Sep 3, 2009 9:12 PM in response to matthiash

i too am unable to mount and use sparse bundle disk images on an afp share. if i move the external drive to my macbook pro, running 10.6, the sparse bundle disk images mount and are usable. when i try to access the sparse bundle disk images over the network, from the same external drive, they mount briefly before disappearing, rendering them un-usable.

this is a real issue. there are other uses for shared sparse bundle disk images. hopefully not just an attempt to sell more time capsules.

my limited testing shows no problems creating and mounting r/w disk images and sparse disk images to an afp share. yet trying to create or mount a sparse bundle disk image to an afp share fails, sometimes silently.

Sep 4, 2009 3:16 PM in response to matthiash

Exactly the same here! No luck mounting old or new sparse bundle images from an afp share... My log entry is even less verbose:

04.09.09 23:46:13 diskimages-helper[536] terminating disk3 - image is no longer available
04.09.09 23:46:13 kernel disk3s2: media is not present.

I'm glad I found this thread. So it seems to be a snow leopard issue. Does anyone know how to bring this to apples attention? I'm just wondering how the time capsules keep working without a firmware update. I really find it hard to believe that this is related to marketing interests...

Message was edited by: sebastianmorsch

Sep 5, 2009 5:48 PM in response to matthiash

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]

Sep 11, 2009 3:04 PM in response to Baiste

Ok, I had all of the same probs everyone else here had.. could not work this out.

I tried to change the password to something really simple in SMB. I changed it to an all numerical password, and it worked! Seems like OSX 10.6 cant authenticate with an alphanumeric pw. For reference, I used an 8 digit numeric one! This was the ONLY change I made, and now it works fine.

Sparse Bundle Images on external NTFS formatted drive

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