Apple Disk iMaGe file format

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4
votes
1answer
1k views

Set up flash drive with multiple OS X Installers

Working in a tech shop, and being an Apple fan, I deal with ALL the Apple-related products. I'm seeing products from 10.4 to 10.7, and I have made a bootable flash drive from 10.6 (since it's the most ...
6
votes
2answers
6k views

How do I create a DMG file from a directory?

I'm trying to add a few files into a dmg. How do I create a DMG file from a directory?
5
votes
2answers
3k views

What are “dmgpart” files and what tools can create, merge, or manage them?

I downloaded something that came as three large files: One was a *.dmg (a disk image file, which I expected) and two more were *.dmgpart files, which I haven't happened to see before – I never ...
1
vote
2answers
344 views

Prevent disk image automount when clicking Finder sidebar

I have been playing around with the View → View Options in Finder and I must have touched something crtitcal because now whenever I click on a folder in Finder it automounts a disk image located ...
3
votes
3answers
1k views

DMG mounts but does not auto-open

I have a DMG which I downloaded using Safari. When I double click it, the volume mounts but it doesn't open in a new Finder window. Any idea why this would happen, and how I can fix the DMG so that ...
2
votes
2answers
126 views

Why are some disk images bigger when burned?

I've got a couple of DMGs that should fit on a CD (one per CD) but burning softwares (Disk Utility & Toast) say that they are 2 or 3 times bigger and thus need a DVD. Why is that ?
2
votes
1answer
1k views

Can I set a password on an existing dmg?

I am just wondering if it's possible to set a password to existing dmg image. There is no such option at Disk Utility.
7
votes
2answers
2k views

Why are executables called DMG (disk image) files?

I am not experienced with OSX but I have been using it recently. It seems to me the equivalent of an .exe (executable) in Windows is a .dmg (disk image) in OSX. And you don't install it, you mount ...
1
vote
1answer
545 views

How to script “add to iTunes Library”

I'm trying to deliver as a download a collection of audio files such that the user (preferably Win and Mac) would be able to double click on the file (perhaps a DMG? / ZIP) and launch a script that ...
17
votes
1answer
1k views

Where is a dmg file mounted?

When I double click a dmg file it's mounted (or so I assume) in the filesystem. I want to explore the dmg file in the terminal for hidden files (like the background for example), but I'm not sure ...
3
votes
2answers
3k views

Creating a Backup of a Mac hard drive that won't boot?

PowerBook G4 laptop no longer boots. Hooked PowerBook G4 to another running Mac using Firewire and held down the 'T' key on boot up. This is a Mac similar to the one I connected the PowerBook ...
3
votes
1answer
285 views

How can I open the .dmg install window on top of everything? [duplicate]

Possible Duplicate: When opening a DMG file, how do I get it to open up in front of the windows? Whenever I open up a .dmg file, it just gets opened, but it stays under everything that I've ...
1
vote
2answers
1k views

10.5.7 Recovery Disk

I've got a mid-2009 MB Pro that I'm setting up to run some tests. I've got Lion and Snow Leopard partitions up and running, but struggling with Leopard. The initial OS with mid-2009 MB Pros is ...
8
votes
3answers
3k views

Why are so many Mac downloads a .dmg just that contains a single .pkg?

I've noticed that many downloads are a dmg (disk image) that contains a single pkg file (installation package). Usually the pkg seems to be already compressed since the dmg doesn't reduce the file ...
1
vote
0answers
202 views

Finder acting different after mounting a DMG in Lion vs SL?

If I recall correctly, when mounting a DMG file in Snow Leopard, the Finder window with the App would become active. In Lion, this isn't the case. Instead of the window becoming active, you have to ...
2
votes
2answers
2k views

Password protect folder without disk images?

Is this possible? I know you can protect a .dmg file, but is there a more convenient solution, by using a third party application?
8
votes
4answers
1k views

How can I backup my system to a remote server (AFP, Samba, or NFS share)?

Here's the goal: I have a backup server with a ZFS filesystem with built in compression and snapshots. All our machines backup there nightly with rsync, and then a ZFS snapshot is taken, so we have ...
11
votes
6answers
5k views

Why do I have to drag my new apps into the application folder?

I'm a new Mac user and I've been installing a few different apps for different things. A lot of these use .dmg files. Why exactly do they all expect me to drag the icon into the application folder? ...
0
votes
1answer
358 views

How to clone CD or DVD from the CLI so it can be accessed in VirtulaBox Windows VM

How can I clone a CD or DVD to an ISO or DMG, using just the CLI, so that I can attach it to a VirtualBox VM. I often clone CDs or DVDs using the following commands: diskname=`df -kh /Volumes/* | ...
1
vote
3answers
2k views

How to obtain latest slipstreamed installation media for OS X?

I'm looking for a way to obtain an updated installation media for OS X 10.6.x, currently 10.6.6 I am looking for a similar solution to the Windows slipstreamed installation media and preferably a ...
18
votes
3answers
5k views

When opening a DMG file, how do I get it to open up in front of the windows?

Whenever I download a .dmg file and then open it (usually from the download bar in Chrome), it opens up in the background. Is there any way to get it to open up in front of my window? Edit To ...
5
votes
1answer
2k views

Cannot empty trash after deleting .dmg

So, I downloaded Chrome, and I put it in the Applications folder and from there a shortcut to the applications bar on the bottom of the screen. All is fine, but now there's an icon on the desktop that ...
6
votes
2answers
2k views

How to make an expanding compressed encrypted disk image?

I'd like the following setup: A DMG file sits on my HD, taking up only the space of the contents, or perhaps only the space of the contents compressed. If I double-click on it, I need to give a ...
13
votes
2answers
2k views

What is the difference between a “sparse disk image” and a “sparse bundle disk image”?

What are the differences between sparse and sparse bundle disk images?
4
votes
3answers
1k views

OSX application shortcut folder in dock and icon updates after installation

Here is the setup: I have the Applications folder right in the dock, which is the default after installation afaik. Now I have a custom build DMG with an application in there which I drag&drop ...
2
votes
2answers
564 views

Is there an easy way to update a NetBoot image?

I have a NetBoot image which I use for booting into to do things like disk maintenance and testing new applications without having to install them on my workstation. It's really handy, but I created ...