Reading Mac Disk Image on PC

Are there any tools for reading a Disk Image created with Disk Utility on a Windows computer?

Does this page contain anything useful?
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  • How to create read only disk image?

    I used to be able to create read-only encrypted disk images with Disk Utility in Mac OS 10.4.x (Tiger). In the Leopard version (10.5.7) of Disk Utility, the 'read only' option seems to be gone (but I can still do encryption). Does anyone know how this can be done?

    A blank empty read only disk image has never been possible. If it's read-only, it cannot be modified, and so it would be blank and empty forever. Not much point in that.
    If you want read-only and encryption on your finished disk image, you'll have to put your files into a folder, and then do File -> New -> Disk image from folder.

  • How to convert read-only disk image to read/write disk image?

    There was some problem with the Mavericks firmware and i keep getting the "white screen of death". I tried the method of backing up Macintosh HD to an external drive via Disk Utility. The problem is I saved it as a compressed file (read-only). I wasn't aware of the problem and went ahead and delete the original Macintosh HD files and set up everything fresh.
    Then when i wanted to back up all my old files from Macintosh HD disk image back up that i created, i can't because the dmg is read-only. I tried to convert it to read/write with disk utility but it couldn't.
    Is there another way to extract the videos and photos? That's all i need.

    A blank empty read only disk image has never been possible. If it's read-only, it cannot be modified, and so it would be blank and empty forever. Not much point in that.
    If you want read-only and encryption on your finished disk image, you'll have to put your files into a folder, and then do File -> New -> Disk image from folder.

  • Read/write disk image vs. sparse

    When I create a new disk image in DU, I am given image format options of read/write disk image, sparse disk image, and sparse bundle disk image.
    I understand the difference between sparse and sparse bundle, but what's read/write?

    A read/write disk image is a traditional (i.e. non-sparse) disk image.
    With sparse images, you define the maximum size, but they only consume as much disk space as the content on the disk image - a 1GB sparse disk image with 50MB of data takes (about) 50MB of space on disk and can grow to 1GB.
    In comparison, a 1GB read/write disk image will consume (about) 1GB on disk, regardless of how much data is on the disk - 1KB, 1MB or 1GB on the image will all consume 1GB on disk.

  • Multiple Macs: Disk Images or Clones

    Greetings,
    I have a MBP that is my main machine. The wife has an iMac with an older OS.
    I also just bought a Seagate FreeAgent Go for Mac (320G), and want to create backups of both machines on this external HD. Reading around, I know I can create disk images of the hard drives for each computer and store them on the external HD (there is enough room), and I believe the other sensible alternative is to partition the external HD (into 2) and clone one machine on each partition (thinking of using Carbon Copy Cloner). For this latter option (cloning each machines' drive), I believe I need separate drives (or partitions) to do that (i.e. can't clone the internal HD's from each machine onto one external HD volume) (?).
    If I have those options correct (disabuse me as needed). Recommendations on which strategy might be best?
    This will be for complete backups done once a month or so.
    Message was edited by: bikeprofessor

    Thanks much all...
    Kiraly...now we are getting down to the nub of it...if I work with disk images, I need a functioning hard drive with space to load the back-up disk image onto and work from.
    I think Carbon Copy Cloner is misusing the term bootable disk image on their website:
    "Carbon Copy Cloner 3 leverages disk images to provide you the flexibility of storing several complete, bootable* backups on a single shared external hard drive. (* Disk images themselves are not bootable, but you can mount them and restore their content to a physical hard drive to produce a bootable, exact replica of the original)."
    http://help.bombich.com/faqs/dmg-and-remote/dimages
    comments???

  • Boot Camp - Windows can read Mac disk, but cannot write to it

    iMac OSX Snow Leopard. Windows XP.
    Can anyone help me resolve this. I have installed Windows XP using Boot Camp. The Windows folder is 31GB using FAT32.
    Windows can read from the Mac disk, but cannot write to it (I get an ACCESS DENIED) error.
    I have checked that permissions are set to Read/Write on the Mac, and have run permissions manager to check all is well. I have also tried deleting and reinstalling Windows, and creating a second User on the Mac.
    When I boot into OsX then I can write to the Mac hard disk from another (Windows) computer on a network.
    I think this did work initially, and it stopped working when I changed the computer name on the Mac (though this might be a red herring -- but it did definitely work OK yesterday).
    I'm a new convert to Macs, but am experienced with Windows machines, and I would appreciate any pointers.

    This is by design. The driver that allows access to the HFS partition is read-only. This prevents any possibility that Windows viruses could become an attack vector against the Mac OS. If you need to transfer files between Mac and Windows, you can always use an external hard disk or memory stick formatted as FAT.

  • Adobe XI trial failure on Mac (disk image couldn't be opened)

    I downloaded the Acrobat Pro Trial and after the download, it got stuck on "Extracting. This might take a while." In addition, a warning box appeared and stated, acrobatpro_11_web_WWMUI.dmg -error -4960 disk image couldn't be opened. I am running Mac OS X, 10.6.8.
    The extraction never finished and I have not been able to begin using the trial. Could anyine advise on how to get beyond this issue and start the trial?
    There seem to have been similar questions in the past (http://forums.adobe.com/message/5466536), but the question was not answered in a way that would have resolved the issue.
    Thank you in advance for your help! I too am in the middle of PhD submissions and could quite use the programme right now (and am hesitant about purchasing a programme whose trial does not even work).

    Download again using another browser.
    Mylenium

  • Unable to create an encrypted disk image in Lion

    disk utility gives the error Unable to create "Volume.dmg." (error - 60008) when creating an encrypted disk image. I am using the following steps:
        1.    Open disk utility
        2.    Select the disk (internal or external) to create the image on
        3.    Select File>New>Blank Disk Image…
        4.    Save As: 'Volume'
        5.    Name: Volume
        6.    Size: 50GB
        7.    Format: Mac OS Extended (Journaled)
        8.    Encryption: 128-bit AES encryption
        9.    Image Format: read/write disk image
        10.    Click the Create button
        11.    Password dialog appears
        12.    When I enter a password the dialog closes after entering only a few characters i.e. before I've finished typing, and the following error message displays:
    Unable to create "Volume.dmg." (error - 60008)
    I have previously, successfully, created encrypted disk images in Snow Leopard, and I don't know why I can't in Lion
    Does anyone have any ideas?

    Thanks for this Thomas.
    I've tried naming the image differently, but still received the error, I did however try different permutations for the password.
    The error seems to happen if I use a purely numerical password string and occurs on input of the 10th numerical character, if I start with numerical character but use an alpha before the 9th number I can continue and create a password, and I can create a password  if I start with an alpha and switch to numerals after the first alpha character, purely alphabetical passwords are fine too.
    It seems that Lion doesn't like purely numerical passwords greater than 9 characters, whereas Snow Leopard wasn't so fussy. Seems it's a bit of a bug.
    Thanks for your help

  • Unable to create an encrypted disk image with Disk Utility

    Hi:
    With our upgrade to Lion a few weeks ago, we're now unable to create an encrypted disk image of any type using Disk Utility any more. This problem occurs on 3 different machines, and is reproducible whether one is using an internal HD or an external FW HD. We can successfully create nonencrypted disk images.
    This is a duplicate post with all the details here: https://discussions.apple.com/message/18469359#18469359
    We haven't had any luck with a solution trying various permissions fixes as helpfully suggested by other readers in response to the error message # (-60008 error), so I'm hoping that someone else has run across a solution from the encrypted disk image perspective and that this tag line will generate some help.
    Thank you!

    Save As: 01 (on Desktop)
    Name: 01
    Size: 100 MB
    Format: Mac OS Encrypted (Journaled)
    Encryption: 256-bit AES
    Partitions: Single partition- Apple Partition Map
    Image Format: read/write disk image
    At the password window that pops up I enter: 1234567890
    This says password strength is "Weak"
    All works fine
    Then I repeated this using:
    Save As: 02 (on Desktop)
    Name: 02
    Size: 100 MB
    Format: Mac OS Encypted (Journaled)
    Encryption: 256-bit AES
    Partitions: Single partition- Apple Partition Map
    Image Format: read/write disk image
    At the password window that pops up I enter: 1234567890 and when I start to enter the next "1" I get the "Unable to create "02.dmg." (error -60008)
    OS 10.7.4
    Disk Utility Version 12.1.1 (353)

  • Disk Image Setup on Time Capsule

    I currently use my 2TB Time Capsule as a backup for one laptop and for my iTunes media files (which I periodically back up to an external hard drive manually).  I'm planning on adding my wife's laptop's backups to the mix and would like to reserve room for the growing folder of music plus other data files.  After some research, it appears that the best way to keep Time Machine from filling all available space with backups from our computers would be to use disk images.  I'm considering two different tactics:
    1.  Create a disk image with a capacity of, say, 1TB to which I'd move the library (I'm assuming that Time Machine will respect the capacity even if the image isn't full, right?).  The issue I have with this is that I don't want it to affect how iTunes accesses the files wirelessly.  Is there a particular way I should create the disk image so that iTunes simply access the files as it does now (i.e., no encryptions, passwords, turning into sparsebundle files, etc.), but also maintains the capacity in such a way that the backups won't encroach?
    2.  Keep the library in its existing folder on the Time Capsule, but create a bunch of empty disk images that will keep the sparsebundle backups from encroaching.  I could then delete the empty disk images as the need for room increases in the library.
    Any thoughts on the best way to do this, or on showstoppers I haven't thought of?  Assuming either approach works, I'm also looking for advice on format, partition, and image format specifications for setting up the disk image(s) in Disk Utility.  I'm assuming I can avoid the encryption/password problems by simply leaving encryption marked "none."

    daveb74 wrote:
    if I were going to use one of these drives as my primary iTunes media location, I'd either have to leave it plugged into the TC all the time or manually attach it every time I wanted to access those files.  The former seems like a bad idea
    Not really.  Running constantly is one of the least-stressful things that a disk drive can do, much easier on it than regular starting and stopping.
    Do you know of any reason why the disk image idea wouldn't work, specifically?
    I wouldn't put your iTunes files into a disk image unless you were sure you were only going to mount that disk image from one Mac at a time.  I'd expect the mounting of a read-write disk image on multiple Macs to cause trouble.
    Putting empty disk image files on the Time Capsule disk would accomplish what you're trying to do (reserve space so that Time Machine doesn't consume it all), but that requires a fair amount of management on your part to monitor the space usage.
    If you decide to go with disk images, be sure that you don't use a "sparse" variety.  You want the type that initially reserves the entire amount of requested disk space.

  • OS X Encrypted Disk Image Tool Buggy?

    Hi,
    I'm trying to create an encrypted file directory on an external HDD (My Book). I decided to try the OS X software to create one. I have tried both the following options, each of which has been buggy when transferring files into the created images:
    * 50GB Encrypted "Sparse Disk Image"
    * 50GB Encrypted "Read/Write Disk Image"
    CASE 1 - "Sparse Disk Image" - errors occur when loading data/files into these images. When I check them via Verify the Disk Utility says there is a "Invalid B-tree node size" and the repair does not work.
    Questions:
    [1] Is this a known Apple OSX bug?
    [2] Is there a way to lodge a bug request with apple?
    [3] Is there a well known/popular folder/file encryption Mac software package that works that someone could recommend?
    Details from the logs:
    Jul 1 16:48:43: Disk Utility started.
    Verifying volume “raw_data”
    Checking HFS Plus volume.
    Invalid B-tree node size
    The volume needs to be repaired.
    Error: The underlying task reported failure on exit
    Disk Utility stopped verifying “raw_data” because the following error was encountered:
    The underlying task reported failure on exit
    1 HFS volume checked
    Volume needs repair
    Verify and Repair disk “raw_data”
    Invalid Volume Header
    Checking HFS Plus volume.
    Invalid B-tree node size
    Volume check failed.
    Error: The underlying task reported failure on exit
    Disk Utility stopped repairing “raw_data” because the following error was encountered:
    The underlying task reported failure on exit
    1 HFS volume checked
    1 volume could not be repaired because of an error
    CASE 2 - "Read/Write" - Failed trying to create image:
    Jul 1 17:15:19: Disk Utility started.
    Creating Image “raw_data.dmg”
    Initializing...
    Creating...
    Finishing...
    Unable to create “raw_data.dmg” - Illegal seek.
    Thanks
    Greg
    MacBook (Intel)   Mac OS X (10.4.10)  

    Is the external drive a USB drive formatted as FAT32? If it's USB and you're using it "out of the box" without having reformatted it, then it's probably FAT32.
    FAT32 filesystems can't properly hold a file larger than 2GB. I ran into this with a pocket size 12GB USB drive. Once the sparseimage file gets close to 2GB, things go haywire.
    If you don't need to share the drive with Windows machines, reformat the drive as Journaled HFS+, and the problem should go away. Otherwise, keep the sparseimage files well under 2GB.

  • Disk Image loses all features but Anime Pop theme

    I completed the iMovie, clicked on iDVD, went through the whole process of customizing, then created a Disk Image on my Desktop as last chance to check content before burning. My Mac reported, two hours later, that a successful Disk Image had been created, as "Outriggers.img." and there it was on my desktop.
    BUT when I tried to review it on iDVD it showed nothing (no movie) but Anime Pop going round and round with drop zones empty, "Play Movie" and "Scene Selection" had no buttons, just the title word "Outriggers" showed that I had been there at all. I closed it.
    I clicked on iMovie to open the project in the usual way.. It would not, "Outriggers" was greyed in both Desktop (where I was storing it) and in Documents.
    I was able to open it on my external storage drive, LaCie Firewire, where I kept getting "Modified Asset Warning" about something I must Update. I did update every time the offer came on. What I saw was my movie with no iDVD opening features. After I gave several instructions to "Quit", the proper opening file came on which gave me the choice to Open a New Project, or an Existing Project. I clicked on Existing Project, I got what looks like a normal result, and I should be able to burn to disk.
    BUT, remember this is happening through the Firewire drive which is only a storage place, and I have not been able to see a preview through the Disk Image. I shall count my blessings and burn the movie, taking a chance that it really will burn properly (not just the incomplete Anime Pop going round and round). But I do not feel comfortable with this. I believe there is an error somewhere that will continue to bug me in future projects.
    Has this happened to anyone else? Up to now, I've been using Final Cut Pro with success, but the new iLife05 is irresistible. I have done two previous projects with no trouble at all.
    My three-year extended warranty just came to a close a week ago, so according to Murphy's Law, this problem I have described to you is right on schedule.
    Steeler.

    BUT when I tried to review it on iDVD it showed nothing (no movie) but Anime Pop going round and round with drop zones empty,
    Read the disk image creation and viewing details. DVD Player for viewing, not iDVD.
    Suggest you create a disc image and then burn the DVD. File/Save As Disc Image...
    http://docs.info.apple.com/article.html?artnum=164927
    This will isolate any encoding/burning issues you may encounter. Once the disc image is created, double-click the .img and burn the virtual disc that should appear on your desktop, using Disk Utility to burn the DVD.
    Open Disk Utility (in Utilities folder in Applications folder), click on the virtual disc (not the .img, the one below) in the left-hand window. Click the Burn icon. Your SuperDrive tray will open. Insert a recordable DVD. (DVD-R preferred by me.) Click the Close button. Wait. Then click the Burn button.
    -->If the virtual disk selection won't allow you to click the Burn icon, use the .img file instead. This may have changed in 10.3.9 and Tiger.
    b Also, you can use DVD Player to play the virtual disk to check your iDVD 5 project before burning to DVD. Launch DVD Player. File/Open VIDEO_TS (Open DVD media... in Player 4.6). Find the VIDEO_TS folder and open that. (The audio folder is for DVD-Audio disks.)
    http://docs.info.apple.com/article.html?artnum=93006

  • Windows access to mac encrypted images?

    I know that truecrpyt is a cross platform solution for creating encrypted volumes. Is there ANY way that I would be able to access encrypted volumes or ANY volumes for that matter that I created on a mac using windows? any tricks or third party software you are aware of?
    Thanks!

    Mac disk images cannot be read on Windows.
    You may want to try using an ISO image:
    http://www.slashdotdash.net/articles/2006/08/14/create-iso-cd-dvd-image-with-mac -os-x-tiger-10-4

  • How to make a DVD disk image to be burned from a PC?

    I need to make a DVD with DVD-SP, save a disc image, upload it have someone on a PC download it and burn it.
    Is this possible? Anybody been succesful at this?
    thanks

    If they have a burning program that recognizes VIDEO_TS files, no problem.
    You need to remove two files from VIDEO_TS first called .LAY and .LAYOUT. They are only required by DVD SP and not the final disc.
    To be safe make a top level folder called NAME_OF_FILM (max 32 characters) and put VIDEO_TS in there together with an empty folder named AUDIO_TS.
    Actually, DVD SP should generate this for you it will be where ever the Build folder is set to be saved in Preferences.
    Don't make a Mac disk image. PCs can't read them. A .zip file or ISO (Toast makes them) is probably better.

  • Problem with sparse & sparse bundle disk images

    Lion (OS 10.7) is driving me carzy.
    Setting up sparse and sparse bundle disk images goes fine. But sometimes when attempting to open the image later, particularily after adding content (JPGs) I get the spinning beachball and then I must restart the computer. I have restarted this computer more than all my others put together, going back to OSA 7.
    Other times everything seems to work fine
    I have a G-5 running OS10.5, and there is no problem. The system is very stable re disk images.
    I've tried all kinds of work-arounds with limited success. These include changing the names of the disk images or the files in them. Usually, I'm back to restarting the computer. If I copy an image that doesn't work on the Mac Pro to the G-5, it'll work. Sometimes the number for the size of the image in list view is grayed out and I don't know what that means.
    It's interesting that when I first got the Pac Pro with Lion installed, sparse and sparse bundle images wouldn't work at all. After several updates to 10.7.2 or 3, the disk images work, but are not stable.
    I would be very grateful if anyone out there has any info or hopefully an answer for this situation.
    Thank you - kajz

    More from kajz
    Sorry about the typos in my first message. I was tired after fighting the sparse image problem with Lion.
    Today I have tried read/write disk images (dmg) and so far they seem to work fine. I would prefer sparse or sparse bundle disk images since they only take as much room as their contents, but I'll have to be practical about this.
    The frustrating thing is that sometimes the sparse or sparse bundle images seem to work, but just when I relax, I'll open one and see all the blank square icons for each of the jpg files, and then I know I'll have to restart the computer.
    I'm still hoping that someone else has had this problem and that maybe there's an answer. Maybe it'll take a future update by Apple to fix this.
    Thanks in advance  -  kajz

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