Sidebar Sidebar
Become a MacRumors Supporter for $50/year with no ads, ability to filter front page stories, and private forums.

Mac volume in Bootcamp Windows not available

D

dr.m

macrumors newbie
Original poster
Feb 3, 2015
10
0
Hi,
I`ve been using Windows 7 on my iMac with Bootcamp. The Mac volume has always been accessible via \\psf network folder and it worked well. Recently I have Parallels Desktop 10 installed and I`ve set Parallels Desktop to run Windows from the Bootcamp partition (My Boot Camp VM). Mac volume was accessible via VM, too. Windows work pretty well in Parallels.

Now, when I reboot the computer to Windows I can`t see the Mac volume anymore. In Windows I can only see the \\psf folder but clicking on it I`d get the message "windows cannot access \\psf" with an error code "0x80070002". I have the Parallels Tools re-installed but no help.

So I`ve tried to install the Apple HFS+ Windows Driver from this forum. Then the \\psf folder vanished completely.

I suppose there`s a built-in HFS support in Bootcamp - is there a way to restore it somehow? Anyway, I`d like to resolve the unavailable Mac volume in Windows problem. Thanks!

---------------------------------------------
iMac 27` 3,4GHz i7 32GB OSX 10.9.5 Bootcamp 5.1.2
 

Attachments

  • VM config screen.png
    VM config screen.png
    90.3 KB · Views: 678
Last edited:
If you have LVM defined there are no drivers available for Windows (or anything else for that matter). Do you have firevault turned on? Please post the results of the command diskutil list in terminal.
 
doynton said:
Do you have firevault turned on?
Click to expand...
Firewall off.

doynton said:
Please post the results of the command diskutil list in terminal.
Click to expand...

Admins-iMac-2:~ admin$ diskutil list
/dev/disk0
#: TYPE NAME SIZE IDENTIFIER
0: GUID_partition_scheme *121.3 GB disk0
1: EFI EFI 209.7 MB disk0s1
2: Apple_CoreStorage 121.0 GB disk0s2
3: Apple_Boot Boot OS X 134.2 MB disk0s3
/dev/disk1
#: TYPE NAME SIZE IDENTIFIER
0: GUID_partition_scheme *3.0 TB disk1
1: EFI EFI 209.7 MB disk1s1
2: Apple_CoreStorage 2.0 TB disk1s2
3: Apple_Boot Recovery HD 650.0 MB disk1s3
4: Microsoft Basic Data BOOTCAMP 151.0 GB disk1s4
5: Apple_CoreStorage 801.4 GB disk1s5
6: Apple_Boot Boot OS X 134.2 MB disk1s6
/dev/disk2
#: TYPE NAME SIZE IDENTIFIER
0: Apple_HFS Macintosh HD *3.0 TB disk2
/dev/disk3
#: TYPE NAME SIZE IDENTIFIER
0: FDisk_partition_scheme *4.0 GB disk3
1: DOS_FAT_32 FAT32_4GB 4.0 GB disk3s1
/dev/disk4
#: TYPE NAME SIZE IDENTIFIER
0: GUID_partition_scheme *500.1 GB disk4
1: EFI EFI 209.7 MB disk4s1
2: Apple_HFS SAMSUNG 499.8 GB disk4s2
 
Firevault not firewall ;)

The drivers you installed should work for HFS - they are a subset of the bootcamp drivers but from version 4. I've installed them just by copying them as in your link in the past.

I think the reason you can't see your mac partition is corestorage. You can check if you have using the corestorage cs list command

Code: 
Last login: Fri Mar  6 22:58:49 on ttys000
adams-mbp:~ adam$ [COLOR="Red"]diskutil list[/COLOR]
/dev/disk0
   #:                       TYPE NAME                    SIZE       IDENTIFIER
   0:      GUID_partition_scheme                        *121.3 GB   disk0
   1:                        EFI EFI                     209.7 MB   disk0s1
   2:                  [COLOR="Red"]Apple_HFS[/COLOR] Yosemite                54.5 GB    disk0s2
   3:                 Apple_Boot Recovery HD             650.0 MB   disk0s3
   4:       Microsoft Basic Data Windows10               66.0 GB    disk0s4

adams-mbp:~ adam$ [COLOR="red"]diskutil cs list[/COLOR]
[COLOR="Red"]No CoreStorage logical volume groups found[/COLOR]
adams-mbp:~ adam$

As you can see I don't use Corestorage. I turned it off following this guide : http://awesometoast.com/yosemite-core-storage-and-partition-woes/ as I couldn't access by mac partition from windows.

You can also see my OS partition is HFS (not Corestorage). If you can see HFS volumes on your disk2 and disk4 then that would be the same problem.

However if you have a fusion drive I don't think you can disable Corestorage so having the HFS drivers doesn't help. I don't think there is a solution http://www.appleexaminer.com/MacsAndOS/Recommendations/FusionDrive/FusionDrive.html but someone using a fusion drive would know better.
 
Hi, thanks a lot for an explanation!
However, using Bootcamp Windows earlier I could see the Mac disc via \\psf folder despite having a fusion drive. After installing Parallels Desktop recently (I suppose) I can no more.
P.S. the firevault is off.
 
KdParker said:
I went to the apple site and looked up drivers for the specific version of bootcamp drivers for Windows.

ie: https://support.apple.com/kb/dl1638?locale=en_US
Click to expand...
There aren't any drivers to access corestorage volumes. They don't exist as Apple hasn't written any.

@dr.m is your problem when you are running through parallels or when you boot the bootcamp partition natively?

If you are booting into osx and running windows through parallels as a vm you could try re-installing the parallels tools http://kb.parallels.com/en/4841 (I use virtualbox so I'm not sure about this but it looks right).
 
doynton said:
@dr.m is your problem when you are running through parallels or when you boot the bootcamp partition natively?
Click to expand...
The problem occurs when I reboot to Bootcamp.
When I run Parallels OSX I can see the Mac volume, no problem.

doynton said:
If you are booting into osx and running windows through parallels as a vm you could try re-installing the parallels tools http://kb.parallels.com/en/4841 (I use virtualbox so I'm not sure about this but it looks right).
Click to expand...
I have reinstalled the Parallels Tools twice but no help, I still can`t see the Mac volume when I reboot.
 
OK, so what is the output of diskutil cs list run from terminal in OSX?

Code: 
adams-mbp:~ adam$ [B]diskutil cs list[/B]
[COLOR="Red"]No CoreStorage logical volume groups found[/COLOR]

If it says anything apart from "No Corestorage logical volume groups found" then you have CoreStorage enabled. There are no windows drivers available for CoreStorage volumes so you can either disable it (if you can - see my earlier post) or you have to live with it.

If it does say "No Corestorage logical volume groups found" then sign on to bootcamp and make a print of Disk Management (Run then type diskmgmt.msc and press enter).

If your OSX partition says RAW it means you have no driver installed. If it says HFS Plus then you do. Depending on what it looks like you may need to install a driver (either Apple's Bootcamp or Paragon's HFS+) or simply right click and assign a drive letter.

Please upload the output of the terminal command above and disk management window so we can see.
 

Attachments

  • Disk Management.PNG
    Disk Management.PNG
    56.7 KB · Views: 385
doynton said:
OK, so what is the output of diskutil cs list run from terminal in OSX?
Click to expand...

CoreStorage probably disabled.

Admins-iMac-2:~ admin$ diskutil cs list
CoreStorage logical volume groups (1 found)
|
+-- Logical Volume Group C170BAA6-3EF2-4DD7-91C3-D817823E74ED
=========================================================
Name: Macintosh HD
Status: Online
Size: 2969587851264 B (3.0 TB)
Free Space: 28672 B (28.7 KB)
|
+-< Physical Volume D310B523-4A27-4DFE-A0D6-38239085BF9B
| ----------------------------------------------------
| Index: 0
| Disk: disk0s2
| Status: Online
| Size: 120988852224 B (121.0 GB)
|
+-< Physical Volume 2E9466B3-A5F5-46C8-A5FF-361EE48FCFA7
| ----------------------------------------------------
| Index: 1
| Disk: disk1s2
| Status: Online
| Size: 2047162458112 B (2.0 TB)
|
+-< Physical Volume F814FE4B-0D24-455A-9A23-3A354B7595EF
| ----------------------------------------------------
| Index: 2
| Disk: disk1s5
| Status: Online
| Size: 801436540928 B (801.4 GB)
|
+-> Logical Volume Family 93A54BB9-C468-40B5-A3CD-812D7D8199E5
----------------------------------------------------------
Encryption Status: Unlocked
Encryption Type: None
Conversion Status: NoConversion
Conversion Direction: -none-
Has Encrypted Extents: No
Fully Secure: No
Passphrase Required: No
|
+-> Logical Volume 92736135-65EE-4E30-BFB5-442120102C65
---------------------------------------------------
Disk: disk2
Status: Online
Size (Total): 2954772004864 B (3.0 TB)
Conversion Progress: -none-
Revertible: No
LV Name: Macintosh HD
Volume Name: Macintosh HD
Content Hint: Apple_HFS

The Disk Management print screen is attached.
"G" is an external Mac-formatted drive.
 

Attachments

  • printscreen.png
    printscreen.png
    70.4 KB · Views: 323
dr.m said:
CoreStorage probably disabled.
Click to expand...
Alas not - corestorage is enabled otherwise it would say No CoreStorage logical volume groups found. You have a fusion drive made up of these partitions: disk0s1 (121GB your SSD), disk1s2 (2TB) and disk1s5 (801GB). These combine to make a logical volume called "Macintosh HD" which is 3TB.

You can see your G:\ drive on your Samsung disk because it is HFS. You can't see the volumes that make up "Macintosh HD" because they are not HFS - they are corestorage.

I've formatted your diskutil list from above, CoreStorage in red, HFS and FAT (what windows can identify) in green..

If you compare the numbers (which are slightly smaller on Windows due to it thinking there are 1024 bytes in a KB and Apple thinking there are 1000) you can see the CoreStorage volumes identified as partitions of an unknown type. This is because you haven't got a driver because none exist - either Apple or third party.
However, if you are used to seeing your HFS+ partition from Windows, you will not be happy. Currently, there are no CoreStorage drivers for Windows (or any other operating system). This means you will not be able to read your OS X partition from Windows, nor will third-party HFS+ read-write drivers work with the CoreStorage volume.
Click to expand...
http://www.appleexaminer.com/files/category-corestorage.html

Comparing your disk layout between OSX and Windows

Disk 0 on bootcamp is /dev/disk1, only the NTFS BOOTCAMP partition can be identified. The first corestorage disk1s2 can be seen but not identified as it is not HFS or any other format Windows knows about. disk1s5 shows as unallocated as the hybrid mbr can only cope with 4 partitions.

Disk 1 on bootcamp is /dev/disk0 (the SSD). EFI partition is a recognized type but Windows doesn't automatically mount EFI partitions, the other partition types (CoreStorage and Apple Boot) aren't recognized.

Disk 2 on Windows is the Samsung that works as Windows has an HFS driver installed. Again the EFI is recognized but not mounted.

(You have removed the 4GB flash drive)

AFAIK your only options are to wait (perhaps indefinitely) for a driver or scrap the fusion drive set-up and re-install everything not using logical volumes. As I said before though I don't have a fusion drive so I've not researched this.

How it worked before I'm afraid I've no idea as what I've been able to find is you can't access HFS CoreStorage volumes from bootcamp :(
Code: 
Admins-iMac-2:~ admin$ diskutil list
 /dev/disk0
    #:                   TYPE NAME 	     SIZE       IDENTIFIER
    0:  GUID_partition_scheme               *121.3 GB   disk0
    1:                    EFI EFI            209.7 MB   disk0s1
[COLOR="Red"]    2:      Apple_CoreStorage                121.0 GB   disk0s2[/COLOR]
    3:             Apple_Boot Boot OS X      134.2 MB   disk0s3 
 
 /dev/disk1
    #:                   TYPE NAME 	     SIZE       IDENTIFIER
    0: 	GUID_partition_scheme               *3.0 TB     disk1
    1: 	                  EFI EFI            209.7 MB   disk1s1
[COLOR="Red"]    2: 	    Apple_CoreStorage                2.0 TB     disk1s2  [/COLOR]		
    3: 	           Apple_Boot Recovery HD    650.0 MB   disk1s3
    4: 	 Microsoft Basic Data BOOTCAMP       151.0 GB   disk1s4
[COLOR="red"]    5: 	    Apple_CoreStorage                801.4 GB   disk1s5[/COLOR]
    6: 	           Apple_Boot Boot OS X      134.2 MB   disk1s6
 
 /dev/disk2
    #:                   TYPE NAME           SIZE       IDENTIFIER
    0:              Apple_HFS Macintosh HD  *3.0 TB     disk2
 
 /dev/disk3
    #:                   TYPE NAME           SIZE       IDENTIFIER
    0: FDisk_partition_scheme               *4.0 GB     disk3
[COLOR="SeaGreen"]    1:             DOS_FAT_32 FAT32_4GB      4.0 GB     disk3s1[/COLOR]
 
 /dev/disk4
    #:                   TYPE NAME           SIZE       IDENTIFIER
    0:  GUID_partition_scheme               *500.1 GB   disk4
    1:                    EFI EFI            209.7 MB   disk4s1
[COLOR="SeaGreen"]    2:              Apple_HFS SAMSUNG        499.8 GB   disk4s2[/COLOR]
 
Last edited:
Hi doynton, thanks a lot for an extensive review!
However, after installing Bootcamp I could see the Mac drive when rebooted to Windows (via Network\psf\\..). Now, after Parallels Tools has been installed I can`t anymore. So it obviously worked, some HFS support in Bootcamp probably exists.
 
You must log in or register to reply here.
Register on MacRumors! This sidebar will go away, and you'll see fewer ads.
Top Bottom
Back