Software :: Cannot Open DMG Files - Disk Image Failed To Mount
Feb 27, 2010
I'm using a 2GHz PowerPC G5, OS X 10.4.11, with 1 GB on one dimm. I cannot open ANY .dmg files. I have tried clicking the image, and also on a clean download used "open with" each time I received the following message The following disk image failed to mount
Reason: Device not configured
I have followed the instructions in this thread:- Disk image failed to mount: Device not configured.
Firstly Run /Applications/Utilities/Disk Utility.
Click on "Macintosh HD" in the left column and then press the "Repair Disk Permissions" button.
Delete the file called /System/Library/Extension.kextcache
Delete the folder called /System/Library/Caches/com.apple.kernalcaches/
Restart
That made no difference. I then tried bobw's advice here Panther - Disk Image "mounting Failed" Panther - Disk Image "mounting Failed". That made no difference. I have since gone on to justanswer.com and the advice I received was to do an archive and install and then a full combo update.
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Dec 23, 2005
When I want to install an application using a .dmg file and I click the .dmg file then I get the message
The following disk image failed to mount
Reason: Device not configured
I started using iBook with version Mac OS X 10.3.2 and now I am using Mac OS X 10.4.2. If you need to know, I have 9GB available in my iBook. NZ
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Aug 7, 2009
All of a sudden my computer (imac, 10.4.11) won't let me open images downloaded from digital cameras (I've tried several - so it's not the cameras). I get the following error - "Couldn't open the file. It may be corrupt or a file format that Preview doesn't recognize." Also the same basic error when using Photoshop and Fireworks. I can open files still on the camera, or saved to a CD - just not anything dragged to the desktop. I can still open pictures which had been previously saved - but nothing new. I ran the Repair Disk utility, which found and apparently fixed an Illegal Name error on the hard drive, but the problem still persists.
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Oct 31, 2009
I want to install a file " divxinstaller.dmg" but I get a warning pop up window that says "the following disk images failed to mount....no mountable file system". I have a imac g5, with os x 10.3.9. I am only installing this divx.dmg program because I was told that it would fix a problem I have with my quicktime player. When I try to play avi files that I have. All I get is the quicktime player opened with the correct movie time code and viewing format size but I get no sound and no image, just a white screen.
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Aug 28, 2014
my disk was not ejected properly, and when I inserted the usb cable,
the disk couldn't be mounted D: but I don't understand why the Time Machine partition still works well...?
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May 26, 2009
I have all my OS X applications that come with your mac on a seperate .dmg file, that's just how it happened. I'm not sure how it happened, but when I took my computer home, it just installed like that. I bought the iMac ex-display from PC World last august and it didn't come with any documentation, reboot disks or an apple remote. They say they don't have them with them, but they obviously do.
I keep forgetting to mount the .dmg every time I reboot, because I'm a klutz and becoming old at a young age. I was wondering if there's any way to automatically have the mac mount the disk image?
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Jan 6, 2009
for the past month or so my automated backups with time machine/time capsule have not been working. Every so often the following error message pops up:
"the backup disk image could not be mounted"
in troubleshooting, i have tried to mount the sparsebundle image directly but without success. from reading around a bit i can see that others have had this problem, and that one solution is to delete the sparsebundles and start again.
but that of course means losing all my archived backups, which i would rather avoid.
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May 1, 2008
How can I tell Leopard to mount a (sparse) disk image at system start up?
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Feb 28, 2012
Yesterday I downloaded and installed Lion. After a while I tried to open one of the disk images that I have stored on the harddrive, which worked to mount prior to installing Lion. While attempting to open it, the process fails and gives the error "no mountable filesystems". I have searched for the error on the internet, and there does not seem to excist a solution to it. However, all the people with the same error, whcih did not have a solution, did not seem to have a similiar problems. Their problem lied with not being able to access disk images downloaded from the internet, while my disk image already excised on the hard drive before installing lion.
Many of the files and documents on the disk image are irreplaceable to me. I can not stress how important it is for me to recover them. If I am not able to do so, it will result in a massive economic loss.
Info:
MacBook Pro, Mac OS X (10.7.3)
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Jul 3, 2012
After a fatal mac crash (PPC 10.5) i had no option but to reinstall the OS (10.5), i obviously didnt reformat the drive in the hope that i would be able to recover some if not all of my data. Using various tools i was happily able to recover most of my data successfully, including 3 AES encrypted Disk images of around 30GB in size each.
I didn't hold out much hope for actually recovering the data inside the dmgs, although after some fiddling i was able to recover 2 of them fully after receiving the no mountable file system error, i dont know how i done it but nonetheless i dont appear to have lost any data from those two dmgs whatsoever. Now the third dmg (also about 30GB in size) never gave me the no mountable file system error and instead returns the error: unable to mount: not recognized. Im pretty sure that my data is still there somewhere due to the sheer size of the recovered file, tied with the fact of the success of the recovery of the other 2 disk images. I have read every post i could find on this site and have trawled the web tirelessly looking for a solution to this, but have yet to find anything that even comes close - the closest i have found was a post on this forum where it would appear an apple engineer was able to recover most of the data using some sort of magic.
I am not in a position to pay for professional data recovery and besides i would love to see a solution to this problem appear somewhere on the web. I have tried the usual, rebuilding permissions, mounting on another machine (imac G5), resizing with disk util, repairing with disk warrior, converting to ISO - all which return the same error - not recognized! I have tried every terminal command i have found on the web, although decyphering some of the information is a little out of my remit and my knowledge of HEX is limited. I haven't yet tried Toast, basically because i dont have a copy, but it would be my guess that this would return a similar result. Incidentally when i recovered the original data, there were some small (what appeared to be dmgs) files around only maybe a few Kb each with part of the file names of the original files, i'm guessing these maybe the headers or something like that? although i didn't have to do anything with them to get the other 2 disk images working again.
Info:
iMac, Mac OS X (10.5), Disk Image error
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Apr 1, 2010
Well, after using Monolingual on my iBook G4 late '04 1.2GHZ running Tiger 10.4.11 I tried to install an app from a dmg file and the image mounts but when clicked Finder relaunches (or at least seems to because it blinks off then back on as when relaunching) and the image does not open. Did I mess up the architectures? I left the architectures as marked by Monolingual and proceeded with the deletion.
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Apr 29, 2012
I downloaded the Final cut pro x trail today and tryed to open it in downloaded but the program refused and said the problem was that it was not recognized.The program was disk image mounter.
Info:
MacBook Pro, Mac OS X (10.7.2)
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Jul 14, 2005
im having issues when attempting to open/mount all DMG files on Tiger. I get "the disk image failed cause its not recognized". Can anyone shed some light on this one?
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May 23, 2010
I am having a frustrating time of late with .rar files downloaded from the web. The Unarchiver has served me well for the most part. But of late it has failed to open a number of .rar files correctly. As a result I have tried both MacPAR Deluxe and UnRarX. On occasion MacPAR has done the trick, but very infrequently. The files in question have all opened correctly on a Windows machine using 7-zip so the files themselves are not the problem.
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Nov 17, 2010
I am using OS 10.5.8.
In the past, I could double click on my disk image file (secure.sparseimage) and it would procede to ask for password and then open.
Since the last security update, when I double click on the same file, it opens disk utility. I then have to double click on the secure.sparseimage file in the left pane.
I checked disk utility preferences and it is still set to automatically open both read only and read and write disk images.
Anyone have the same experience and possibly an explanation or solution?
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Apr 3, 2012
When I mount downloaded disk images, they open in a new window automatically.
Info:MacBook, Mac OS X (10.6.8)
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Apr 16, 2012
This happens frequently lately: "Latest backup failed. Files couldn't be copied on backup-disk because it seems to be Read Only. After I "verify" the disk in Disk Utility, it works for a while, then the same problem. What can I do?
Info:
iMac, Mac OS X (10.6.8)
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Jun 29, 2014
I am running OSX 10.9.3 on a 3GHz Intel Core 2 Duo iMac with 12GB RAM, and itunes 11.2.2 (3) 64 Bit. My itunes library is large (approx 1 TB) and contains mostly ripped CDs, vinyl and ripped DVDs and BluRays. I usually add media using the File/Add to Library command. This set up has been reliable for a couple of years at least.Â
At time of writing itunes will still happily add music files, but is no longer happy to add movie files. I get a message telling me that the disk which contains my itunes library (I use a 2TB external HD) cannot be written to or read from. Clearly this isn't true as I can write music files to it. Â
I tried disk repair in the disk utility and it tells me the drive is healthy. I thought maybe there is a maximum itunes library size. As a check I tried starting a completely new itunes library on a different external drive and the problem persists.Â
I have >500GB spare space on the drive containing my itunes library. All my drives are formatted Mac OS Extended (Journaled) so should not suffer any file size limitation.Â
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May 27, 2010
I use Carbon Copy Cleaner to backup. I've set it to backup to a sparse, rewritable disk image. If I, say, delete a file, then do another backup, will the file I deleted still be in the folder it was in, or will it disappear as if the backup was cleared and redone?
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Sep 24, 2008
I am new to the mac world, recently I have tried to download an online poker game and failed to mount due to error 95 (no mountable system). I have tried looking on the internet but cannot get a straight answer. I have a mac os x 10.2.8.
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Sep 10, 2009
Apparently, there are two ways to convert disk images in CDR format to ISO format:
1. Rename diskimage.cdr to diskimage.iso
Or
2. hdiutil makehybrid -iso -joliet -o diskimage.iso diskimage.cdr
The first method is really quick while the second method takes quite a long time. Do the two methods yield the same ISO file? In particular, I would like to convert a bootable CDR disk image to an ISO disk image.
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Jun 23, 2012
I had two hard drives, "Macintosh SSD" (primary) and "Macintosh HD"(secondary). I put my home directory into "Macintosh HD", and it works fine. However, last night i mistakenly rename the "Macintosh HD" to "MacintoshHD" through the finder's "get info". Now I cannot log in!I believe it's the problem of the changed name of mount point.
My previous home located at /Volumes/Macintosh HD/Users/myname Now, it locates at /Volumes/MacintoshHD/User/myname, thus it refuses to login. I don't know how to change it back through single user mode...
Info:Mac OS X (10.7.4)
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Jan 10, 2010
How do you go about mounting an image on OS X?
I got a game installed on my Mac but I've lost the disk. Is there a way I can mount it?
On my old PC I used to use Daemon tools. Whats the Mac equivalent?
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Dec 9, 2010
How can I run it without WM Ware Fusion or Parallels? Is there an app where I can run it somehow without such programs?
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Aug 29, 2014
I have a Macbook Pro . The hard disk failed smart disk and my laptop does not start any more. Is it ok if I replace the HDD with CGET or WD hard disk rather than the apple hard disk. the pros and cons of a non apple HDD.
Info:
MacBook Pro, OS X Mavericks (10.9.3)
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Mar 29, 2004
I am trying to open some old files back from when I used Mac OS 7.5, 8.0, 9.0. The files in question were saved using Disk Doubler (from FIfth generation Systems) to compress them. I must ask first, am I correct in assuming that file type of DDAP and DDFL are Disk Doubler files? I'm trying to reopen some of those files. According to Alladyn Systems web site, StuffIt Expander is supposed to open Disk Doubler files. However, if I drag one of the DD files onto StuffIt Expander I get the following message: The file �Insert name here� does not appear to be compressed or encoded. It is advised that you obtain further information about the contents of the file from the sender or provider of the file.
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Jun 13, 2009
On my old macbook, I installed vista and everything worked fine. I just did that on my new macbook pro. It runs fine and all, but the Bootcamp HD isn't showing up on my desktop under my Macintosh HD. I went do disk utility and it verifiys the disk, but repair just does this:
I try to mount the image, but it fails and wants me to try repairing, which as you see in the picture doesn't work. Any ideas?
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Feb 20, 2012
I would like to be able to open files that I've worked on in Windows and be able to write back to the same disk. Is this possible? What do I need to do to make this possible?
Info:
MacBook Pro 17, Mac OS X (10.6.3)
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Dec 15, 2010
I'm having a pretty serious problem. I attempted to erase the free space on my HD, as I do from time to time, except this time it appeared to hang/freeze at the end, when it gets to the part where it creates a temporary file. I waited for several minutes and it didn't move. I tried clicking the skip button, but that did nothing either, so I force quit Disk Utility.
The problem is, it left the disk at "Zero KB" of free space, effectively making my computer inoperable. I was in the process of studying for a huge exam tomorrow, and am currently flipping out.
If it matters, I'm on a Macbook Pro 2.33 GHz Core 2 Duo, running 10.4.
I really don't want to have to reinstall the OS and import the old files, but my real fear is that I will have to do a fresh install of the OS.
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Dec 15, 2010
I'm having a pretty serious problem. I attempted to erase the free space on my HD, as I do from time to time, except this time it appeared to hang/freeze at the end, when it gets to the part where it creates a temporary file. I waited for several minutes and it didn't move. I tried clicking the skip button, but that did nothing either, so I force quit Disk Utility.
The problem is, it left the disk at "Zero KB" of free space, effectively making my computer inoperable. I was in the process of studying for a huge exam tomorrow, and am currently flipping out. Any help would be greatly appreciated.
If it matters, I'm on a Macbook Pro 2.33 GHz Core 2 Duo, running 10.4.
I really don't want to have to reinstall the OS and import the old files, but my real fear is that I will have to do a fresh install of the OS.
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