*.dmg is a disk image file format widely used on Macintoshes for software distribution.

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Can't change Icon of a DMG or air package in osx Mavericks

Hello I was hoping someone would be able to help. I'm attempting to make a fancy DMG for program I have developed for the company but keep coming up short when I try to change the icon when I view the ...
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3answers
179 views

Does Virtualbox support DMG files on non-Mac OSes?

I'm trying to use a DMG as disc drive for a VirtualBox virtual machine, and I'm greeted by this very unpleasant surprise : This reads : Error opening optical disc file C:\Users... Could ...
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39 views

Retrieving data from Disk Utility Image

I created an image of my mac using disk utility. It's a .dmg. It has a lot of data on it (about 1 TB) and I only want one file from it. Is there any way I can selectively pull information from it, ...
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1answer
1k views

Can't unmount dmg. Keep getting “Resource Busy”

"Workspace" is an encrypted dmg where I keep my code. I don't usually unmout it but I need to take a backup and it's refusing to let me unmount: mark@mark-macbook-air /Volumes$ lsof | grep Workspace ...
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2answers
298 views

Not enough space in dmg file

I created a password protected dmg file (http://www.hongkiat.com/blog/encrypt-mac-folder/) but when I try to add content to the mounted dmg file I receive a 'not enough space' message. I have enough ...
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104 views

How to make a disk image file from a DVD on Windows that OSX can mount?

Question is pretty clear. Is there a software can do this or is there any other tricks? I tried making an iso file with MagicISO Maker but in OSX i got "no mountable file systems" error. Explanatory ...
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0answers
123 views

How can I find what type of encryption my DMG is using?

I have an encrypted DMG file on my Mac. Is there any way to use Terminal, and maybe the diskutil command to list what type of encryption the DMG is using? Or perhaps some other command? Or maybe ...
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66 views

How to compress 2 (apple) disk images of different backups of the same drive?

So I have backed up my Macintosh HD at different instances to DMG files. I would like to compress them but when I try to make an archive it simply compresses each image, without recognizing the ...
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1answer
1k views

On a Mac that was originally shipped with Lion, how can I replace Mountain Lion with Lion?

My MacBook came with OS X Lion pre-installed. I then downloaded and installed Mountain Lion on the same partition for free, when it was launched. Now I need to install OS X Lion (10.7) in order to ...
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306 views

Is it possible to shrink DMG images?

I just did some data recovery on a failing hard drive. I have a 1.5 TiB DMG image of the hard drive. I don't have enough free space to simply copy the files elsewhere, and I would like to extract them ...
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1answer
2k views

Trying to restore a Mac OS X system from DMG file fails

I'm in a bit of a panic at the moment. My MacBOok was hanging and generally misbehaving so I decided it was time to do a clean install. I took 2 backups: Time Machine (happens anyway, but I ensured ...
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236 views

How can I recover data from a dmg that cannot mount?

I backed up a hard drive in a dmg, then reformatted the hard drive. (I had deleted the efi partition before which was preventing me from reinstalling the operation system). When I tried use the ...
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1answer
4k views

Dmg to Iso on Win 7 64-bit

I was unable to run in cmd dmg2iso. It throws error that it can run only on 32-bit system and not 64-bit. Is there some free program that can do that on win 7 64-bit?
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1answer
3k views

Install mountain lion by using the .dmg from installer app

I already have a Mountain Lion Installer app, downloaded from Apple Store. Now, I would like to install ML on another machine I own. I didn't want to download it again, so I copied the .app to the ...
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2answers
3k views

Can't mount dmg image as read/write

Hello I've downloaded a bootable .iso image that I'd like to write to an USB stick under OSX (10.6). I've converted the image with the command hdiutil convert -format UDRW -o ./X15-65804.img ...
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123 views

Strange background image when opening DMG in Mountain Lion

Whenever I open a DMG file to install an application the window opens with a background image from another program I recently installed (Aptana Studio). Below is a screenshot in which I have opened ...
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2answers
6k views

Why is Adobe Flash Player downloaded as a “.dmg.mdlp” file?

When I download the current Adobe flash player installer from the Adobe website using Safari 6.0.1 under OSX 10.8.2, I end up with a file named 'install_flash_player_osx.dmg.mdlp' in my downloads ...
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DMG file has small red symbol on icon and won't show contents [closed]

I have a dmg file (Calibre 0.9.1) which opens but shows the contents as empty, while previous iterations of the file (Calibre 0.90 and earlier open correctly). I have downloaded various copies of the ...
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4answers
11k views

How do you access the contents of a mounted DMG drive mounted through hdiutil and diskmout

My external USB drive failed. I made a .dmg image file of the drive using disk utility. Later I was not able to mount the .dmg image. I used terminal hdiutil attach -noverify -nomount name.dmg ...
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1answer
428 views

Suggestions? Password & Encrypted Read/Write File like a Mac (.dmg or .SparseBundle) also R/W on Windows, Ubuntu

For years I have used .dmg or .sparsebundle (Encrypted and Password Protected) to safely keep home directory backups on my Mac. Now, I am looking for a similar Full Permissions/Read/Write that ...
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3k views

What is the difference between ISO and DMG images?

What is the difference between .iso files and .dmg files? Why are they used differently?
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246 views

restore a DMG to a disk using ubuntu Live CD

I need to restore a drive from a backup I have on a DMG, but currently I can only boot the computer from a Ubuntu CD. Can I restore the backup to a drive this way?
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1answer
1k views

Make DMG Readonly

There is information on how to do the opposite (which is hard to impossible), but how do I make a writeable DMG readonly? The reason that I might want to do this -- because otherwise this question ...
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1answer
2k views

Imaging Windows HD with a OS X Disk Utility fails, “Invalid Argument”

I have a Windows laptop HDD that I want to create an image file with, usingĀ OS X's Disk Utility. When I try to create an image it fails (invalid argument). I created a video of me attempting to ...
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Create a bootable USB drive from a DMG file on Windows

A Mac machine needs to be reformatted with Lion. I backed up the Lion dmg file when I purchased it via the Mac App Store. I now need to create a bootable USB drive from the DMG file but I need to be ...
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1k views

Mac OS 10.7 DMG files don't pop up anymore?

Has anybody noticed that double-clicking on a DMG file no longer raises the mounted image to the front of all windows? It used to be that when you double-clicked a dmg file, it would pop-up but now ...
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6k views

Can I convert my OS X Lion into a VMware virtual machine?

Is it possible to convert the current OS X Lion 10.7.1 install on my Mac Mini (i5, 8GB RAM) into a virtual machine via VMWare converter? I use VMware Fusion 4. Or, is my only option to set up the ...
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1answer
4k views

How can I run fsck on a disk image via Mac Terminal?

I want to run fsck on a disk image before I use it to restore (replace) a corrupted volume. Using Terminal, what would be the proper command, syntax, and options for this operation? I've just ...
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163 views

Determine exact size of DMG to hold data

Let's say that I have three files with the following sizes: FileA: 15468bytes FileB: 3874235bytes FileC: 10452326bytes and I want to create a UDIF, GPTSPUD, HFS+ DMG with hdiutil which will ...
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4answers
58k views

How to mount a dmg file in Windows?

I need to mount a .dmg file on windows 7. These are the disk image container files as are commonly used with Apple's OSX. What applications/utilities will do this? I know Daemon tools won't.
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Can Linux mount a normal Time Machine sparse bundle disk image directory?

I am looking to see if Linux can mount and read the files natively stored on a Time Capsule over a network share. Like this question, I am looking for something that replicates at least read-only ...
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3k views

How to install Mac OS X Snow Leopard server on any virtual machine with DMG?

I'm trying to install Mac OS X Snow Leopard Server on VirtualBox. I know this is duplicated question, however another questions have no fine answer. I'm trying to install on VirtualBox on iMac. So ...
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1answer
310 views

Tool to generate icons like the default dmg-icon with a custom icon on top in perspective

I'm looking for a tool or template which generates icons like this default one: With custom icons applied on top of it in the right perspective like here:
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How do I burn a .dmg DVD on my Windows PC, so that I can run it on my Mac? [duplicate]

Possible Duplicate: How to burn DMGs on a Windows PC? I downloaded a 4.6GB .dmg file on my Windows computer. What Windows program can burn this .dmg file to a DVD, so that I can ...
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1answer
1k views

How can I mount an AES-128 encrypted DMG file using the NTFS file system under Windows XP?

I found HFSExplorer, which can handle encrypted DMG files, but it only supports HFS, and the DMG I want to open is NTFS. I can't just use any image mounter since the DMG file is encrypted, and I don't ...
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1answer
145 views

Install Mac OS X Server from Apple's website

I just downloaded Mac OS X Server from Apple's developer website and have the DMG file in my downloads folder. I opened it, let the box pop up, and then it says that I need to restart my computer. I ...
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1answer
3k views

strange: random google-XXX.dmg mounts and umounts on OSX

I just noticed via HardwareGrowl, that a .dmg image file mounted and unmounted all by itself. It was called google-XXX.dmg (where XXX represents a number i did not note down that fast. I am running ...
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2answers
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How to prevent HDIUTIL from opening a finder window when mounting a dmg?

When I mount a DMG image with hdiutil -noautoopen and try to suppress the finder window with any and all command line arguments to HDIUTIL it still open's a Finder window. There must be a way to ...
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418 views

Clone Windows 7 from new netbook to dual-boot MacBook Pro [closed]

I need a real tech expert for this. This project might be very complicated. So bear with me and try to help me with this. Here's the basic idea of what I'm trying to do. Outline: I have a netbook ...
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2answers
398 views

7gb .DMG file, only 986mb?

I have a .DMG file of around 7GB. When I try and open it using Ultra ISO or Magic ISO it just sees it as a 986MB file? I would love to burn this to a USB key or something, but obviously it wont boot ...
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1answer
257 views

How can I prevent Mac apps from deleting a temporary folder that they have created?

I'm using an app called DropDMG to extract a large zip file that is 109 GB in size. However once it's extracted the whole bundle, it ends with an error from its subprocess ditto and deletes the ...
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2answers
2k views

DMG image containing Mac OS X 10.6.5 update not recognized

I want to update my Mac OS X 10.6.3 and want to use the manual package update (not Software Update) and I am having this problem for two days now. First I downloaded Mac OS X 10.6.5 Combo update and ...
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5answers
2k views

Bypass a licence agreement when mounting a DMG on the command line

I'm automating my Mac installation using puppet. As a part of it I need to install several programs that come in a .dmg format. I use the following to mount them: sudo /usr/bin/hdiutil mount -plist ...
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810 views

Caveats about compressed DMG?

I was curious about using compressed and modifiable DMGs to store all kinds of data. Eg: I've got a tablatures set for guitar which is like 120mb zipped and contains 60-70k files and 1.3Gb unzipped. ...
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665 views

How to clone DMG image to another partition, or USB partition?

Hackintosh probably is not welcome in here, but question is about cloning DMG image to any partition on HDD or USB drive... I know that there's TRANSMAC software, but this one wants to format full ...
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2answers
394 views

Made a .dmg for a project; user can't open it - “no mountable file systems”

We don't know a great deal about Macs. We had to make an installer, and were told to try a .dmg So we put together version 1, and it seemed to work. We had one application file, which had our icon, ...
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3answers
5k views

How do I get rid of a .dmg file which appears after reboot on my desktop?

I downloaded software (Skype), installed it everything works fine. The only annoying thing is that the dmg image always appears after rebooting. I'm new to Mac OS X. EDIT: It's exactly as described ...
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1answer
683 views

Restore damaged boot sector

After a series of unfortunate events, I have a clone of my laptop's hard drive as a .dmg file (created using dd). The dmg was built using the noerror option, which means that significant portions of ...
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2answers
612 views

OS X: do you really need to drag applications to the “Applications” folder?

When you install an OS X application from a .dmg file, it is very typical, when you mount/open the .dmg, to see the application's icon followed by an arrow pointing to the "Applications" folder, a bit ...
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5k views

Write to .dmg file on Mac OS X 10.6.4

Following steps to update a .dmg file (mounting and Show Contents), I'm unable to write to the folders in the DMG file. Doing a "Get Info" displays a locked padlock and all else greyed out in the ...