Can't access exFAT partition from Win7 on VM

[TakuoO]

Hi all,

I installed Windows7 to BootCamp partition and create exFAT partition.
Everything works perfect but Win7 on Virtual Machine can't read/write exFAT partition.

OSX can read/write exFAT partition.
Win7 booted from BootCamp can read/write exFAT partition either.

Only Win7 on VM can't read/write exFAT.
(Win7 on VM mounts exFAT as D: drive)

Any help?

rEFIt Partition Inspector shows below.
(#2 is exFAT partition)

Current GPT partition table:
# Start LBA End LBA Type
1 40 409639 EFI System (FAT)
2 409640 406444799 Basic Data
3 406706944 408807183 Mac OS X HFS+
4 409069568 455944191 Basic Data
5 455944192 498848615 Mac OS X HFS+
6 498848616 500118151 Mac OS X Boot

Current MBR partition table:
# A Start LBA End LBA Type
1 1 409639 ee EFI Protective
2 409640 406444799 07 NTFS/HPFS
3 406706944 408807183 af Mac OS X HFS+
4 * 409069568 455944191 07 NTFS/HPFS

Thanks.

 

[TakuoO]

Fixed!

Hi all,

I fixed this problem.
Thanks for this thread:
http://forum.parallels.com/showthread.php?t=105244

joevt wrote:

Parallels needs to unmount Boot Camp partitions before it can use them because more than one file system driver (on the Windows side or the Mac side) can have access to the same partition at the same time without messing up file system structures.

This is different from a network type file system (e.g. SMB, AFP, or Parallels Shared Folder) where the owner of the disk data (the server or host) remains in control of the file system structures but allows the client (or guest) to read and write files and modify directories.

You have 4 options for accessing the shared disk from Parallels and Mac at the same time:

The first option is to leave the Edit Partitions as you have it now, and use the mount point that Parallels gives to the Mac OS Finder for the shared disk on the Mac side (Configure -> Options -> Sharing -> Mount virtual disks to Mac desktop). Any aliases that were created while you weren't running Parallels won't work though since the volume will appear with a different name. I wonder if it would work better if you change the name on the Mac side so it matches the name Parallels gives it.

The second option is to setup file sharing on the Windows side, and connect from the Mac side.

Third, You can access the shared drive as a network file share if you turn on File Sharing in the Sharing preferences panel of the Mac's System Preferences. Fourth, you can use Parallels Shared Folders to access the shared drive. Either way, it won't behave exactly like it did in Boot Camp. You'll have to deselect the partition from the Edit Partitions list so the Mac can use it natively. I'm not sure you can have it setup as the same drive letter in Boot Camp and Parallels without having some startup script to change the same drive letter between the partition and the file share depending on how you booted.


I wanted second option...sharing on Win7 and connect from Mac.
But I can't read/write sharing partition from Win7.
So, I choose Fourth option, setup Parallels Shared Folders on Mac and connect from Win7.

Thanks again this great forum.