Apple Disk iMaGe file format

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1answer
51 views

Disk utility won't let me use the restore option to get a .dmg image onto a USB

I'm tying to make a bootable Debian USB drive. All I need to do is restore the USB drive from the Debian dmg. I get this error. The debian.org documentation is not helpful with this specific issue. ...
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0answers
20 views

Cannot create a dmg file and save it onto a usb flash drive. Error: Unable to create “ ”. (Operation not Permitted)

I currently am trying to create dmg files from folders inside my 128 GB flash drive. I recently re-formatted it into the exFAT format. The folders I am trying to convert into a dmg file are around 15 ...
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0answers
11 views

Forget how to… reduce dmg size by discarding unused space [duplicate]

I have a 250 GB DMG with a volume that only uses 75 GB. Is there a way to shrink the size of the DMG file to just the 75 GB? I feel like I've done this before but I can't remember how I did it... I ...
2
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1answer
80 views

Time Machine - move backup from local disk to network volume. Wrong case sensitivity?

I am trying to move a Time Machine backup from a Firewire disk (called disk1) directly connected to a computer to a network share, that is, from a folder in/on /Disk1/Backup.backupdb to a ...
1
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1answer
93 views

Sparse bundle on NAS - can't open “Resource temporarily unavailable”

I just got a new Lacie NAS with their NAS OS 4. After making an initial Time Machine backup to this device I wanted to mount the resulting (encrypted) disk image but when doing so I just received an ...
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1answer
62 views

How to mount a DMG image created with dd?

I created an "emergency" image of my dying HD using the procedure explained in Recover a dead hard drive using dd. Now when I try to mount the dmg file I get the message: "The following disk image ...
1
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1answer
19 views

Downloading iOS 8.4 .dmg file or later

I'm trying to download or to get .dmg of iOS 8.4 or later and all I can get from Apple dev center is ipws file. Is there any way to convert/extract/whatever this .ipws to a valid dmg image (that can ...
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1answer
262 views

Problem installing Box Sync 4 application on El Capitan

I download the Box Sync .dmg, see the mounted installer, click on the installer, enter my password, and NOTHING happens. I have tried this myriad different ways. I have restarted the laptop several ...
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1answer
21 views

How can I have dmg files automatically unmount when I trash them?

A while ago, I used to have some kind of App or service that would automatically unmount a dmg file whenever I put the dmg file into the trash. This was really convenient, but I've since reinstalled ...
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2answers
167 views

Changing icon of a mounted disk image

I want to modify the icon of my mounted disk image, the same way as FUSE for OS X. My desktop screenshot, where my disk image is the left one (name is censored): Changing the icon of the dmg is ...
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1answer
738 views

Using El Capitan, why can't I install some dmg files

I recently upgraded to El Capitan, and now I am finding I can't install certain software. For example, I needed to view WebEx. WebEx had me download a dmg, but when I clicked it to install, it opened ...
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1answer
19 views

Multiple Parallels 8 dmg's in my MBA

I use Parallels 8 w/my MBA running Mountain Lion so I can use some Office application. Today, I noticed I have 4 Parallels related dmg's. Each one is approximately 320MB. ...
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2answers
215 views

Do I have to keep the .dmg files on my computer?

As a new user of OS X I am getting to know how it is to work with it every day and I started noticing things that went unnoticed previously. One such question is, when I download a file from the ...
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3answers
131 views

Use mdfind to identify all encrypted dmg?

Can someone suggest a clever way to identify all dmg that are encrypted? My only idea is rather complicated. use mdfind '(kMDItemFSName=*.dmg)' and then test the response from hdiutil imageinfo and ...
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2answers
752 views

Can not run Xcode 7.0.1 on MacBook Pro

I can not run Xcode 7.0.1 on my MacBook Pro (Retina, 13-inch, Late 2013, 4GB of RAM, 128GB SSD, 20+GB of free space, OSX 10.10.5). I downloaded the DMG file from Apple, and can run it on my Mac mini ...
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0answers
50 views

I ran a .dmg by mistake

I ran a .dmg file from an e-mail by mistake, and it opened and showed the installation. I, however, closed the window and unmounted the image. I'm I safe or should I run some virus scanner? If so can ...
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2answers
49 views

Installing *.dmg via CLI [duplicate]

How are *.dmg packages installed via the command line? I noticed that they can be mounted with: me@MacBook-Pro:~$ open /Users/me/Downloads/installer.dmg What's next?
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1answer
31 views

Mac Mini keeps trying to mount encrypted DMG at login

I used to have an encrypted dmg image mounted at user login, but I didn't want it to be mounted anymore, thus I removed it from my user's "Login Items", but in spite of that the OS continued asking me ...
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0answers
34 views

How to force volumes to show toolbar/sidebar on initial open

I noticed when upgrading to Yosemite that all new network drives, disk images, flash drives, etc initially show up without the toolbar and sidebar: I like always being able to see the toolbar and ...
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0answers
61 views

Mounted image appears empty in Finder

I decided to reinstall MacOS X from scratch. I have rebooted my mac with Cmd+R, then used Disk Utility to create a .dmg disk image on a USB drive. I then rebooted the computer and verified that I ...
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2answers
7k views

Installing OS X Yosemite from compressed DMG file in VMware Fusion

I would like to install OS X Yosemite in VMware Fusion 7.0. If I select the DMG file my university is providing, VMware is unable to boot from the DMG file. The image is a compressed DMG. ...
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1answer
243 views

Problem moving application from DMG file

I downloaded vlc-2.2.1.dmg to my computer and it opens ok. When I try to copy the app to the Application folder I get this error message. When I try to open VLC from the DMG file it runs fine. I ...
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0answers
33 views

How does Apple track the origin of a program?

So, I downloaded an Xcode DMG from Apple's website from my main Mac. I copied this DMG to a samba network share. Later, I went on an entirely separate Mac and copied the DMG off the samba network ...
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0answers
20 views

How can I make volumes that I mount be opened in the current Finder tab instead of in a brand new window?

For example, if I mount a downloaded disk image, it opens in a new Finder window, with the toolbar missing (and therefore with the status bar at the top instead of at the bottom and with the tab bar ...
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0answers
122 views

Create PKG file from DMG

I am attempting to create a PKG file, from a DMG. Any idea if this is possible and what tools do I need to make this happen?
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3answers
2k views

How to open .dmg file or install XCode on Windows?

I am mostly windows developer and had to step into iDevelopmentWorld. Went to apple to get XCode, downloaded it, however file extension is .dmg. Windows does not recognize it as executable and throws ...
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0answers
35 views

Disable 'hide toolbar' in Finder

Is it possible to permanently overwrite the 'Hide Toolbar' and 'Hide Sidebar' setting in the Finder, particularly in DMG images with downloaded Applications, so that the toolbar and sidebar are always ...
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0answers
60 views

Getting Garbled Alert popup in Yosemite

When I clicked on a proprietary dmg, I found this garbled alert. Whereas previously in the 10.8.x version, this DMG message is clear, it is unreadable with 10.9 and later.
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479 views

can not erase/eject chrome .dmg/disk image on desktop without uninstalling chrome

I have this same problem, as Alex (Cannot empty trash after deleting .dmg) and none of the answers address it... when i downloaded chrome, a disk image icon showed up on my desktop. you click it. ...
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1answer
54 views

how do I launch firefox after installing it?

I downloaded the .dmg for Firefox, clicked on it, was prompted to drag it to the Applications folder, did so, but cannot launch it. The directions are to drag the icon from Applications to the ...
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1answer
59 views

Why do downloaded applications arrive as .dmg files

When downloading most applications from websites they are usually packaged into dmg files. Is there any specific reason why people distribute apps in dmg files instead of zip files? If so why do ...
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1answer
64 views

“Identical” DMGs: one installs, one does not

We've got a DMG from a vendor that we put on our web server for download. After download, the file on my Mac (OSX 10.10.1) is identical to the original file (did a hex compare), and the DMG mounts ...
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2answers
423 views

What is the differences between Dreamweaver_14_LS20.dmg and Dreamweaver_13_LS20.dmg?

I find that there are two versions of Dreamweaver CC for Mac OSX, one is Dreamweaver_14_LS20 and another is Dreamweaver_13_LS20. Can anyone tell me what is the exactly differences between these two ...
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0answers
329 views

Why does hdiutil fail on symlinks when creaing an image of a Time Machine backup?

I am trying to create a compressed disk image of a Time Machine backup (that is stored on an external HDD) on Yosemite. hdiutil fails on the first symlink it comes across. Before the failure, there ...
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4answers
2k views

Is it possible to restore OS X .dmg file to External Drive?

I recently traded in my iMac with 1TB HDD for a MacBook Pro with a 256 GB flash drive. I want to restore my previous hard drive but obviously it won't fit on the new hard drive. Is it possible to ...
0
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1answer
165 views

Unlock an encrypted DMG on login

How can I unlock an encrypted DMG on login? Something graphical to hdiutil mount ~/Desktop/secure.dmg
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0answers
31 views

What happens if I interrupt image compaction

I have a sparse image of hundreds of gigabytes that I run hidutil compacton now and then. This process takes hours. I'm just wondering, if I interrupt this process, or if there is a power outage, is ...
0
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1answer
43 views

When installing an application is there any way to avoid any drag and drop?

When installing an application from a DMG file one needs to drag the new application into the application folder (or some other folders). Is there any way to avoid this drag and drop (any new ...
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1answer
52 views

Can't figure out how to correctly install .app

I downloaded a dmg which apparently OS X mounted as a drive or something. Then I googled around to find out I should ctrl+clicked -> open the program and get past the warning messages. I closed the ...
1
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1answer
141 views

DIsk Image shows larger size unmounted then when mounted. How to fix

I have an encrypted dmg (Mac OS Extended Journaled) read/write and it shows a size of of 768.46 GB unmounted but only has a mounted capacity of 665.72 GB. I think something may have been corrupted ...
4
votes
1answer
2k views

Unable to convert dmg to encrypted dmg on Yosemite

When I try to convert a regular (internet downloaded) dmg file to an encrypted dmg (256-bit AES) using Disk Utility on Yosemite it gives me this error message: How do I get this to work on Yosemite? ...
7
votes
1answer
127 views

How to “chroot” a terminal inside a DMG?

I'm doing security research and for that purpose I use an SHA-2 encrypted DMG to store the tools and files I work with (containing confidential client info), to protect them from forensic examination ...
2
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1answer
114 views

DMG or Package Installer

If I need to download an App, what method of installer should I prefer DMG or Package Installer? Which has greater advantage.
6
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2answers
4k views

hdiutil: compact failed – Function not implemented

When compacting a sparse image with the hdiutil compact command, it fails with the message hdiutil: compact failed – Function not implemented.
3
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1answer
286 views

Finder remounts DMG files that I opened previously

When I mount a .dmg file or open files in my drive (using text editor or other app), the Finder will automatically remount all .dmg images that I used before. For example, I do something in DMG A, ...
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2answers
594 views

How can I resolve this error during a dmg copy operation

I am trying to copy a 200GB dmg file between two disks (one firewire, one local) and see this error: The Finder can’t complete the operation because some data in “mbp_18_06_2011.dmg” can’t be read or ...
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1answer
3k views

Finder shows .dmg is unmounted, Trash refuses to delete it

I downloaded a .dmg file for an application, and now after installing the app and unmounting the .dmg I can't delete the .dmg file because Trash says it's "in use". Finder shows no mounted .dmgs, yet ...
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1answer
729 views

Deleted Users Confusion/Worry

I found a 'Deleted Users' folder, which apeard on the side bar of the finder some how, which I've never seen before. I'm confused how they got here and why I never saw them before. It has two .dmg ...
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2answers
1k views

DMG password protection under Mavericks

Under Snow Leopard I applied password protection to some archives on a Flash drive. Upgrading to Lion and later Mountain Lion did not affect that protection, but Mavericks strips it from some (not ...
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2answers
95 views

Opera dmg corrupt

I have been trying to download the Opera DMG from my Mac OSX on a very slow internet. Everytime, the download starts, reaches a little above 1 MB, and then shows as download complete. When I try ...