.dmg's won't mount or create disk image

I'm using a 17" powerbook. I've had no issues in the past year of ownership with downloads (from Apple site or other). Recently, when I attempt to download a .dmg, the image won't appear on the desktop, however it did download. The download file show's it did download but failed to mount. The desktop shows the failed download as shaded out.
I am not using any download accelerator or similar product. This problem appears to have started with my most recent system software update from Apple.
Help and suggestions are appreciated.
PS - this only seems to apply to .dmg's

Do you still have some older dmg files that you can check? Will one that worked in the past still work? When you do GetInfo under the section for "Open with" is the application specified as DiskImageMounter? If not, is that application in the drop down list and can you select it? Finally, do you have the application here:
"/System/Library/CoreServices/DiskImageMounter.app"
If the application for mounting dmg files is there and you can choose it to open the dmg files, or it is already listed as the choice, you might try using Disk Utility to repair permissions. If the older dmg files work correctly, but the new one doesn't, then something is wrong with the new downloads.
Francine
Francine
Schwieder

Similar Messages

Dmg downloads won't mount

Trying to update some software and I'm finding that dmg files won't mount.
The dmg files work on another computer running the same version of OSX.
I don't get the standard warning telling me that I may be downloading an application.
Disk utility won't verify it because it won't mount.
I did run permissions and rebuild Launch services database with ONYX but the problem persists.
I can network the other computer and manage the dmg and update from there but I need to fix this.
Any advice?

cheers Ted but this doesn't work for me - see my terminal window contents
Last login: Tue Feb 19 12:43:35 on console
Welcome to Darwin!
andrew-beardsmores-powerbook-g4-17:~ andrewbeardsmore$ sudo kextunload -c com.apple.AppleDiskImageController
Password:
kextunload: terminate instances for class com.apple.AppleDiskImageController succeeded
andrew-beardsmores-powerbook-g4-17:~ andrewbeardsmore$ sudo kextload -b com.apple.AppleDiskImageController
Can't find superclass for 15KDIBackingStore : 9KDIObject
kextload: a link/load error occured for kernel extension /System/Library/Extensions/IOHDIXController.kext
load failed for extension /System/Library/Extensions/IOHDIXController.kext
(run kextload with -t for diagnostic output)
andrew-beardsmores-powerbook-g4-17:~ andrewbeardsmore$
Any ideas anyone ?
Looks like an archive and reinstall to get a chance at reapplying the combo updater ?
Thanks
Andy

Auto-Mounting Network Shares/Disk Images

Hi,
I'd like to share how I solved my problem with auto-mounting a network disk image/folder share to be used as a custom library/location for Aperture 3.xx. I can now either reference the master photos from the network or have it copy to this disk image volume on the network, although it might be better to have it copy to the disk image volume, so one can move it around as a file later. I researched hard over these forums and internet resources and discovered what I thought was the best way to accomplish this. Initially, I found right away that Aperture doesn't allow you to create a library over your network drive or a home server such as mine, unless it is partitioned/formatted to Mac OS. This wasn't acceptable for me as I also run Windows 7 PCs that need to utilize the network folder shares, as well.
I don't understand why I don't have this problem using iPhoto 2011, and do with Aperture 3.0, which is a far more expensive application. Anyhow, I read a little about NFS, but didn't know how to implement this or if it required the Mac Server and/or a non-built in application, it probably isn't compatible with windows. So, I found that by creating a .DMG disk image file, as a partitioned/formatted Mac OS file in Disk Utility, and saving it to the network folder of my choosing, did the trick.
Steps I used to accomplish this:
-Go to Disk Utility and create "New Image"
-Select format w/ MacOSX Extended(journaled) and choose "single partition/GUID" type (or whatever you want)
-Enter a custom size of your disk image (ex in 1GB or 1TB). Click "Create"
* I created this locally 1st and then I copied it over the network, to the network folder/subfolder on my HP Mediasmart Home Server EX495. I found that creating it over the network took too long and would crash Disk Utility.
-After it's copied to your desired location over the network folder, open Automator.
-choose "Application" workflow, double-click to add "Get Specified servers". Enter location of your server (ex smb://hpserver/)
-Then add "Connect to Servers",
-Then add "Get specified Finder Items". Click Add, and locate your disk image file over the network. (this will automatically add the location path. For ex. smb:/hpserver/photos/aperture_library.dmg)
-Then add "Mount Disk Image".
-Then test workflow by clicking on "Run" button on top right of window. If your
Finder->Preferences->General settings on your Mac is set to show "Connected Servers" on your desktop, your disk image will appear on you desktop.
-Finally, save this Application workflow as an application by clicking File menu->Save As. Save this to your documents folder area.
-To have your Mac auto-mount your disk image automatically when you login:
->go to System Preferences->Accounts->your "Admin account name"->Login Items
->click "+" sign and navigate to the Documents folder, to where the Automator application you saved
->click Add. Once done, it will appear on the Login Items area. You can choose to hide it, if you want by clicking the checkbox.
-Now Restart your Mac, and now your disk image should auto-mount.
Hope this helps, as it helped me solve the issue. Too bad one must have to program this and it is not native on MacOSX.

Too many steps. Do this:
1. Go to Disk Utility and create a disk image with the following properties:
Format: Mac OS Extended (Journaled)
Partitions: Hard Disk
Image Format: Sparse bundle disk image
2. Copy the image you just created to the share on the network where it should reside.
3. Open System Preferences, and click on the Accounts icon
4. Select *your account* and click on the Login Items tab
5. Drag the icon for the disk image from the network share into the Login Items list
If a login item is something on a network share, it will reconnect to the share it's located on automatically first.
If a login item is a disk image, the disk image will be opened and mounted.
It's important that the image is a journaled one because if it isn't, being disconnected from it while writing would be potentially disastrous.
It's important that the image is a sparsebundle for two reasons: sparsebundles only take up as much space as they need (e.g., a 1Tb sparsebundle with 100M of data takes up about 100M of space), and they also break the disk down into smaller files. If the underlying filesystem on your network share is FAT32, then no file can go over 4Gb. If you use a sparsebundle, of course, there's no practical limit to how large the disk image can get. Also, it can speed up certain types of backup procedures.
I suggest using partition type "Hard Disk" instead of "1 partition GUID" because, as a disk image, there's no sense in having a partition table or making it bootable (because you can't boot from the image).

Time Machine and mounted sparse bundle disk image - file by file backup?

I think I had this system working in Leopard, but upon upgrade to Snow Leopard it seems to have broken. Does anyone have any idea how I can get Time Machine to back up the contents of a mounted sparse bundle disk image in real time - file by file within the disk image? For example, I have a 2GB sparse bundle disk image that i keep all of my bank statements/files/records in. It auto-mounts on boot and stays mounted. I use the disk image to keep it password-protected, so if I unmount it it is fairly safe. In Leopard, I would exclude the .sparseimage file from backup, but it would still backup the mounted image itself on a file-by-file basis, so I could enter Time Machine and explore the image folder by folder, file by file (say I deleted an old bank statement by mistake, I could go into time machine and recover as if it were a normal file/folder).
In Snow Leopard, after a clean install, and creating a new sparse bundle disk image and excluding the .sparsebundle file, I can't seem to get this to work even though the image is mounted. Is there any way to trick Time Machine into backing up the mounted image as it would any other folder? I know I can back up the .sparsebundle file incrementally but in order to recover a lost document I'd have to remount the old bundle and that seems rather roundabout.
Thanks,

I think you're trying to bypass the finder to mount the disk. Try this (I'll bold the key steps):
- *Turn off Time Machine* in the System Preferences.
- Option A: If you directly use a hard disk (not wireless) that has the sparsebundle you want to open, *connect the disk* but don't double click on the sparsebundle.
- Option B: If you are using wireless, this means use shift-command-k (or shift-apple-k), and if it says "Connect As..." in the upper right instead of disconnect, then use that button to *connect to that wireless drive*.
- Confirm the sparsebundle shows in that folder before proceeding...
- *Open Terminal* (Applications>Utilities>Terminal.app)
- Type: *hdiutil attach -noverify* (<-- notice a *space " "* must be included after typing this here but *DON'T hit return* yet.)
- *Drag the sparsebundle to the cursor in terminal*, and it should fill in something like /Volumes/HardDrive/COMPUTERNAME.sparsebundle for you. Now you can hit return, and the disk will mount.
- After you are done browsing sparsebundle's mounted image, *eject the mounted disk* like you would any other disk (not the sparsebundle image itself, just the disk icon that appeared if you successfully mounted it).
- Turn *Time Machine back on* in the System Preferences.
Hope this helps.

Can't create disk image of external disk

I just switched from a PowerBook G4 running OS 10.4, to a MacBook Pro running 10.5. I'm trying to create a disk image of the old machine's hard disk, as a backup. Before doing this, I ran Disk Utility to make sure none of my disks were in need of repair.
I started up the old machine in Target Disk mode and connected it to the new one. In Disk Utility, I selected the disk, and clicked Create Disk Image. I told it to save the disk image as uncompressed and writable, on a disk that has plenty of space. So it chugs along for about an hour, creating an 80GB image.
Then once the image is done, I try to mount it and get an error, saying that the disk image has no mountable file systems. I've done this four times already, each time with the same result. In addition, if I try to restart after creating the image, the system hangs.
Any ideas why this might be happening? Are there any known bugs with Disk Utility in Leopard? Interestingly, I tried to do the same thing with Carbon Copy Cloner, and ran into a different error (it thought that it couldn't mount the newly-created image).

Yesterday I bought a Maxtor Basic external harddrive for my mac.
Followed the instructions, using Disk Utility, formatted the hd, then I tried to create a 60 gb blank encrypted disk image but failed twice; after clicking 'Create', Disk Utility does not prompt to create a password.
First time Disk Utility just hangs; there's no respond for 30mins, so i force quit it and reformatted the drive, again.
Then I tried to create a 10mb encrypted disk image and the box appears to enter a password, so I presume it was working fine.
Again, I tired to create the 60gb blank image. This time, i left it overnight, thinking maybe it just takes a longer time. No prompt for passwords, and in the morning, the msg I got was 'No drive found' or something like that, because the drive has ejected itself. (???)
Anyone has any idea why? I could create the image on my mac and throw it in the external drive, but my mac onlyhas 15 gb of space.
Let me know if this sounds like a problem with the Maxtor so I could exchange it ASAP.

Cannot create disk image iDvd 7.1.2 (multiplex error)

I'm at my wits end and extremely disappointed.
Basically, I've gone through the threads that I can find, I'm down to importing a basic movie directly into iDvd. No menus. No options enabled (that I'm aware of).
When I go through the iDvd process of creating a disk image all goes smoothy until the very end when I get a multiplexor error (no error code or text saying why).
Extremely frustrating. This is on a new Macbook Pro running 10.7.2. I don't have problems with my other Apple systems, just this new one. Perhaps Apple would like to take it back??

Hi
Multiplexing Error
Multiplexing error is a very complex problem due to many things (long long list following) -
one common but not obvious reason is that material on the iDVD menu goes outside the TV-Safe area (or just touching it).
So first - turn on TV-Safe area and move any object well inside of this.
Wide screen stretched - usually (as I think) it is due to making a 4x3 movie in a 16x9 wide-screen project OR the other way around. This forces one to on flat-screen TV (or other) set the presenting view right - My has 4x3, wide-screen, zoom and auto-wide-screen and I have to switch this by my remote for some DVD I've made "wrong" way.
Now my long long list on Multiplex Error
LONG LONG LONG LIST
Multiplexing Error
PART One.
Use of strange video/audio material e.g. .avi, .wmv, .mp3 etc.
I only use.
Video - StreamingDV (miniDV tape via FireWire) and
Audio - .aiff (as on audio-CDs) (else converted to this .aiff 48KHz)
Photo - .jpg (.bmp known problematic)
Chapters !
A. Using strange letters in video project name e.g. +,/; etc. keep to a-z and 0-9 strange letters in project name e.g. +
as described by Donnyboy69. Does the title of your project have any symbols or decimal points in it. If so, that is why you are getting the error. I had a project that had a + sign which caused the same problem. I renamed it without the symbol and low and behold, it worked.
B. Location of Chapters
• Can’t be at start or end of movie (Skip first/start one - iDVD sets this by it self. At the End - no need)
• Not in a transition (or within 2-3 seconds from it)
Important when from iMovie HD6 or previous - Now also observed when using FCE 4
PART Two.
from Robert Modero.
"Multiplexing Error. Problem during initialization of tracks"
Simply remember to add subtitles to your Quicktime files and menu buttons.
Once I did that, I was back in business.
from Boise Jim
Do a safe reboot (by holding down the shift key until you see the spinning gear on gray background, then release, then restart when your start-up screen appears).
I always makes a DiskImage first and test this so that it runs OK
I use only - Verbatim DVDs
I use only - DVD-R
I burn at an as slow speed possibly e.g. x1
This gives good DVDs
PART Three.
Multiplex Error
Chuck, Chicago 2/7/2009.
Back again. Here is what I have found to work. I also have and use a LaCie DVD-R/RW DL external drive and a LaCie external hard drive as well. Since yesterday I have tried a few ways to burn a themed iDVD project having four 56 minute movies on it, amounting to 226 minutes onto a DVD DL disc, capacity 240 minutes. Apple tech support really didn't know what to do but gave me a very good tip. I had two options left. Apple tech support's tip was to try disc image. One of the replies on a thread with this subject said not to, but my experience today is good. Put your project onto "Burn to disc image," under "iDVD, file." Yesterday encoding took me 23 1/2 hours. Overnight for iDVD disc image, encoding took 21 1/2 hours (again) while I slept. This morning I tried to copy/burn disc image to a DVD with Roxio Toast 7, and it stopped near the end of the burn with some kind of "error" message. So then I tried Utilities> Disc Utility> Burn icon, and followed it through. Be sure to click the DVD DL drive in the window "Burn disc in.". I had one other problem though. At the end of a 46 minute copy, it started to verify, and at the end of verify it rejected the burn. So I tried again, and when "verify" appeared, I clicked on "Skip." The disc finished burning and is doing fine and well. A long and tortuous process, but at last something works. I made several additional copies using Disc Utility. Best wishes. Chuck, Chicago.
2. Disconnect any other external devices not absolutely needed.
e.g. external USB/USB2 hard disks, other FW hard disks etc.
3 Chapter marks in transitions - minimum 2 sec from
FROM Bev.
(Not a 'guy' but I will answer!)
First, I do not think that mixing wide-screen and standard makes a difference in iDVD.
Second, you should use a better brand of DVD disk. Also, many of us have experienced fewer problems on playback with DVD-R disks. Recommended brands here are Verbatim, Maxell and Taiyo Yuden. Memorex and TDK are not consistent and may not give you a correct burn. They apparently have fewer layers in the composition of the disk. I have always used Verbatim DVD-R disks and have not had any burn problems.
Also, choose a slower burn speed, 4x or less.
Third, to determine if the iDVD project will burn properly, create a disk image file (from within iDVD, go File->Save as Disk Image) and test it. Mount the disk image and then open DVD Player (in Applications) and view your project. If it plays correctly, you can then burn the actual DVD disk from the disk image file using Disk Utility.
From. Boise, Idaho
I did everything I've seen suggested, but a friend (who used to be an Apple Genius) suggested that I do a safe reboot (by holding down the shift key until you see the spinning gear on gray background, then release, then restart when your start-up screen appears).
It worked, and I got a clean burn from iDVD.
Hopefully this can help other people.
by dheb0422
Well, I finally got it, and it was odd enough to post here incase anyone looks this topic up again. Many things were tried, including burning the unedited film, the edited film without titles and chapter markers, abbreviating the chapter markers in case length was the issue (remember the old iMovie used to truncate them when moving to iDVD?). In the process, I noticed that one, and only one, chapter marker was on the same line as the title marker. All the others were on the line above. The only way I seemed able to change that was to clip a few seconds of film. After that last clip, the offending marker took a place on the line above, as were all the others. That run published, compiled completely and burned. That's one for the books.
One user more writes
To add my experience with Multiplex Errors using iDVD (7.0.4), I recently created two iDVD projects
Video from both passed from FCE 4.01 with chapters
One project worked fine in creating disk image file
The other gave Multiplex Errors
I tried suggestions to remove special characters and no chapter marks at beginning, but nothing worked
Note that I've used iDVD for dozens of projects and this is first time I've run into Multiplex Errors
Anyway, for problem project, I tried an experiment where I removed all chapters in FCE and passed to new iDVD project
This time multiplex errors gone
So had something to do with chapters
So now I tried numerous experiments to remove individual chapters and try again creating disk image with new iDVD project
After numerous tries, I was able to narrow problem down to 1 "Bad" chapter mark
That is, when I left the "bad" chapter in my FCE project and passed to iDVD, iDVD gave multiplex error
When I removed "bad" chapter mark (and others in), no multiplex error
As a final experiment, I moved "bad" chapter mark about 5-10 sec's beyond original point and passed to iDVD, the multiplex errors now magically went away and I was able to finally create my disk image.
I have no idea why this worked, but thought I'd mention here in case someone else runs into similar problem.
Rich839
In addition to Bengt's fine advice, burning errors can occur if you have located any of your menu buttons wholly or partly outside of the safe TV viewing area. Go to your main project menu, then click on View/Show TV Safe Area, to check. Drag into the safe viewing area any buttons that are outside the safe viewing area.
Russ One - suggest this
Multiplex Error-There was an error during muxing preparation
One thing that worked for me was to export the video w/o chapter markers as a self contained movie (thereby not loosing the edits & etc). Then make a new FCE project and import that movie into a new sequence and add the chapter markers. I've used "-", "&" and "," with no problem in the chapter names. Removing the markers or exporting without them did solve the problem but renaming them with just numbers 1,2,3....5, did not solve the problem and since this problem seems to happen with with iMovie as well, it would suggest the problem is in the video or audio and in combination with the chapter markers iDVD just can't handle it. The only other possibility is that both iMovie and FCE share the same or similar chapter marker code that some how is corrupting the markers.
Summary - What to try
1. Chapters
• Only A to Z and 0 to 9 in chapter title
• No Chapter mark at very beginning of movie
• No Chapter mark in or within 2 seconds from any transition in movie
2. TV-safe area for buttons (no one outside this)
3. Safe re-boot
4. No other external devices connected - that are not needed
SDMacuser adds to this
• On #4 ... No ext. devices. Some think this applies mainly to ext. FW. Not the case. Also applies to ext. USB2 as well (not to mention flash drives too).
Do not leave 3rd party devices / camera / camcorder plugged in unless it is being used with iDvd's One Step process. Certain web cams can trigger this also (especially ones with added features like LED light/s that draw additional power from the FW or USB bus).
5. Minimum of 25Gb free space on Start-up hard disk
6. Make a DiskImage first - reduces where problem originates
7. Trash iDVD pref. file
8. Make a new iDVD project
9. Movies in project with same aspect ratio e.g. 4x3 or 16x9
10. No other programs/applications running during iDVD process. e.g. Internet, screen & energy savers
Yours Bengt W

Creating Disk Image Freezes

I'm attempting to do a full backup of my boot drive to an external hard drive using Disk Utility to create a disk image. For some reason, it always gets to a certain point, and then locks up. This morning when I came into the office, it was locked up on the task "Adding Resources". I've successfully created disk images of other workstations on this hard drive, but for some reason have been unsuccessful with my main workstation.
Anyone have any thoughts as to why this is happening? Does Carbon Copy Cloner create a full disk image just as good as Disk Utility? I find it odd that I don't have to unmount the disk that CCC is creating a disk image from. Thoughts?
Thanks
Dave

It is also able to create a disk image. I have multiple .dmg backups of all my workstations on one HD. I would need to reformat that drive in order to clone, because I need to create a partition for each workstation I back up.

What's the best way to create disk images?

of 300GB hard drives or partitions?
Disk utility is failing for me with an input/output error.
A typical example:
I have a new HFS+ 500GB external FW 800 drive that I am using a destination.
I will boot from my original 'install' DVD and then open up disk utility to start the disk image creation.
Note: my source is my "Macintosh HD" partition that is around 300GB.
Everything looks like it is running well, then a couple hours into it, it fails... something like:
"cannot create img.. blah input/output error".
Note: Verify Disk shows no errors on the source.
One guess is that the img creation process is failing after I leave the computer and perhaps my computer falls asleep. I tried setting the 'Energy Saver' prefs in the systems prefs, but of course, since I'm running off the install DVD, I wasn't able to get into the prefs.
Anyway, ultimately, I need to create periodic disk images of my macs.. so what are people using to do this?
Thanks for the comments!
Donovan

Eric, Carbon Copy Cloner is what I was leaning towards. The owner says his guess is that there are bad blocks on my HD, and since Disk Utility is block based, that it is failing where CCC is file based, and will just skip files that are corrupted or that it can't copy.
I guess I'll roll with that for now.. but it would be nice if the Disk Utility logs spit out a more descriptive log.. instead of "could not create disk image, input/output error".
Thanks!
Donovan

Disk Utility Error 61 when attempting to create disk image on external driv

I would like to make occasional archive backups of my three macintosh computers. I bought a new Western Digital 2TB drive for this purpose, and formatted it as Mac OS Extended. Trying to do a disk image backup using Disk Utility, I follow the directions:
- Startup from an install DVD.
- Start Disk Utilities and select "Restore"
- Drag "Macintosh HD" into the Source box
- Click on "New Image" and select compressed and 128-bit AES encryption
This leads to the error message: Unable to create "....." (error -61)
I have enocountered this problem both with my iMac G5 and a MacBook, both running Leopard.
Does anyone know what this error means, what I am doing wrong, and/or if there is another way to create disk image backups? Help!

1. For reasons I don't know disc images seem to become more fragile the larger they get. They also can be subject to file corruption that affects the entire disc image, whereas file corruption on a clone would only affect certain files.
2. You cannot put multiple clones on the same volume. Each clone must be on a separate volume, but you can have multiple volumes on a single drive simply by partitioning the drive accordingly. Of course you need a drive large enough to accommodate each clone. Each clone should be to a space equal to the capacity of the cloned drive.
3. I'm not a big fan of TM, although I must confess it has become more reliable since it's release, especially with Snow Leopard. However, there are many backup utilities that can create clones, perform incremental updates, and archive changed files. See the following:
Backup Software Recommendations
Carbon Copy Cloner
Data Backup
Deja Vu
Silver Keeper
MimMac
Retrospect
Super Flexible File Synchronizer
SuperDuper!
Synchronize Pro! X
Synk Pro
Synk Standard
Tri-Backup
Others may be found at VersionTracker or MacUpdate.
Visit The XLab FAQs and read the FAQ on backup and restore. Also read How to Back Up and Restore Your Files.

"Lightroom_5_LS11_mac_5_7.dmg" for Mac to update my Lightroom 5.6 (build 974614) but when I attempt to open it I get the following error message "Lightroom_5_LS11_mac_5_7.dmg can't be opened as the disk image is not recognised". I'm running Yosemite OS 10

I have downloaded "Lightroom_5_LS11_mac_5_7.dmg" for Mac to update my Lightroom 5.6 (build 974614) but when I attempt to open it I get the following error message "Lightroom_5_LS11_mac_5_7.dmg can't be opened as the disk image is not recognised". I'm running Yosemite OS 10.10 on a Macbook Pro (Retina, 13-inch, Late 2012 with 2.9 GHz Intel Core i7 processor).

Vk2mh it sounds like the download was not complete or corrupted. Where are you downloading the update from? Have you tried downloading again?

Cannot create disk image in Disk Utility

I am trying to create a disk image of my macbook pro hard drive to an external firewire drive. The image starts, then I get an error that says "unable to create disk image: Input/Output Error"
I've verified both disks and permissions, but the image creation still fails. I've never had this happen before, and can't find anything about it. Any ideas?
Thanks,
-Jason

Glynn;
You're a genius - THANK YOU!!!!
I just wanted to backup my HD before I upgraded to tiger again .. had my main HD go flakey on me and had to resort to my back up jaguar drive - You're a genius and this worked for me .. as I got the device busy message as well. I figured it was because I was on my start up drive, but didn't have the extra OS drive anymore to switch start up disks to do this.
Thanx so much for your answer!!!
Try this. Open disk utility and highlight your
MacintoshHD(the one you want to copy). In the
options inside the
window(FirstAid-Erase-RAID-Restore) choose restore.
For the source--The Top field--Drag the highlighted
MacintoshHD to the source field.
Destination Field--Drag the image of your lacie
drive(Thats also in the side bar below your
MacintoshHD) to the destination field. click
restore....
g4 Mac OS X (10.3.9)

Can't create disk image with Disk Utility

I just upgraded to OS X Mountain Lion and i can no longer create disk images with Disk Utility in order to store encrypted data.
The operation fails and ends with the post :
Failed to create disk image, error:
hdiutil: create failed - Resource busy
I use three Macs with Mountain Lion, and this problem occurs only on one of the three.
I check the disk, repair permissions and did a reset of the PRAM. I even did a reinstall of Mountain Lion, without success.
But curiously, using a new user account, I was able to create a first disk image. But no one after.

Launch the Console application in any of the following ways:
☞ Enter the first few letters of its name into a Spotlight search. Select it in the results (it should be at the top.)
☞ In the Finder, select Go ▹ Utilities from the menu bar, or press the key combination shift-command-U. The application is in the folder that opens.
☞ Open LaunchPad. Click Utilities, then Console in the page that opens.
Make sure the title of the Console window is All Messages. If it isn't, select All Messages from the SYSTEM LOG QUERIES menu on the left.
Click the Clear Display icon in the toolbar. Try the action that you're having trouble with again. Post any messages that appear in the Console window – the text, please, not a screenshot.
When posting a log extract, be selective. In most cases, a few dozen lines are more than enough.
DO NOT INDISCRIMINATELY DUMP THOUSANDS OF LINES FROM THE LOG INTO A MESSAGE. If you do that, I will not respond.
Important: Some private information, such as your name, may appear in the log. Edit it out by search-and-replace in a text editor before posting.

Disk Utility crashes and dmg files won't mount

My girlfriend's Powerbook has been acting up for a while now, and we still can't seem to get it working properly.
One day, her Adobe programs just stopped working. Tried several things, but nothing worked and she ended up reinstalling OSX. That fixed the problem, but then she noticed she could no longer open DMG files. Accordingly, she tried to run Disk Utility but then found that it would always crash when trying to open.
She ran Disk Utility from the install disc, but nothing turned up. She also tried looking up several methods of fixing the DMG problem (deleting various files), but nothing's worked.
If I remember correctly, she also tried using the 10.3.9 combo updater some time ago, but that didn't help. We're actually not totally sure about that, so we're trying to reinstall the 10.3.9 combo updater, except for the fact that Apple has only made the file available as a DMG (which she obviously can't open).
So can anyone please help us get Disk Utility to stop crashing, and get those DMG files to open/mount? I have the crash logs but they're huge, so I'm not so sure if I should post them. Thanks everyone!
PS. I can open DMG files for her using MagicISO (I'm on a PC), but it's a bit of a pain transferring those larger files to her.
Powerbook Mac OS X (10.3.9)

What files did you try deleting? If you don't know what a file does or why you're messing around with it, you shouldn't; that's just asking for trouble.
Let's assume for the moment that you have a corrupted preferences file. To find out, go to Users/Library/Preferences and locate the com.apple.DiskUtility.plist file and drag it to the Desktop. Now relaunch Disk Utility and see if the problem continues. If not, then use Disk Utility to Repair Permissions, and then you can Trash the file on your Desktop.
You should also use your OS X install disc to boot the system and use Disk Utility to Repair Disk, to see if there are any problems. If it reports any errors that it can fix, keep running it until no more are reported.
If there's an error that it cannot fix, stop using your system immediately and make a backup of everything; then get a disk utility such as DiskWarrior to see if it can fix your drive. If your drive cannot be repaired, you will need to replace the internal drive and restore from your backup (if you have one).
Hope this helps,
Mulder
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iMac G4 700Mhz Mac OS X (10.3.9)

How do I repair a damaged dmg that won't mount and Dick Utility can't repair?

Apple Care gave me wrong instructions on how to create a disc image of my internal HD then erased it. Now I have a .dmg that has the same gigs as the HD but won't mount and Disk Utility can't repair. Tried to recover files with Data Rescue 3 but that isn't going so hot. Any suggestions?
Thank you

The Apple Support Communities are an international user to user technical support forum. As a man from Mexico, Spanish is my native tongue. I do not speak English very well, however, I do write in English with the aid of the Mac OS X spelling and grammar checks. I also live in a culture perhaps very very different from your own. When offering advice in the ASC, my comments are not meant to be anything more than helpful and certainly not to be taken as insults.
I guess that it's a moot point to ask if you didn't test the dmg before you erased the drive. Do you have a Time Machine or other type of backup?
If not, it's a hard lesson to learn, but I would guess that unless you are willing to pay for expensive outside data recovery service, all is lost and you are starting over.

.DMG files won't mount on desktop nor will my iPods

My iPod classic won't mount on my desktop, nor can I get the iTunes .dmg file (or any .dmg file for that matter) to mount on my desktop. My iPod has worked fine for years. Now it won't mount on my desktop but it'll charge just fine. It used to automatically launch iTunes when I plugged it into the USB port, but now it won't. And when I launch iTunes, iTunes doesn't recognize it at all so I can't sync. I've tried restarting my computer, upgrading iTunes, switching USB ports and restoring my iPod. Still nothing. I don't think the problem is with my iPod, I think it's my computer. Because I just bought a brand new iPod Shuffle yesterday (because I thought my old iPod was dead) and the brand new Shuffle won't mount on my desktop either and won't automatically launch iTunes and iTunes doesn't recognize it at all to sync it. (I checked and my iTunes is up-to-date.)

Well, now I can't get it to safe boot. I've done it before, no problem but it won't work, now. I restarted, holding the Shift key, and it never would start after 10 minutes or so but the fan just kept getting louder and louder. I tried it 3 times. Then I tried booting from the Disk Warrior CD and it took 3 tries before it finally booted off the CD—I would hold the C key and it would just sit there and not start up and all of the sudden the restart gong would go off, I'd still hold the C key and it did this 3 times before it finally started from the Disk Warrior CD.
Did you want me to try moving those files off to the desktop even though I can't restart in safe boot or run disk utility?
I'm gonna call it a night for now. Maybe I can try the safe boot again tomorrow. How long do you think I should hold down the shift key before I give up?
Thanks again!

.dmg's won't mount or create disk image

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