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

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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!

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
If my answer helped solve your problem, please consider awarding some points. Why Reward Points?
iMac G4 700Mhz Mac OS X (10.3.9)

IBook G3 - DMG files won't mount!

I recently acquired an iBook G3 Clamshell (366 mhz) with Tiger (10.4.11) installed on it.
I can't seem to download dmg files, as I get a 'Mounting Failed' error. I have tried creating a new admin, no luck. Unfortunately, the computer didn't come with the Tiger install cd's. I have also tried verifying and repairing the disk permissions with no luck.
Any help would be greatly appreciated. Thank you!

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

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

.dmg files won't mount

Ever snce installing 10.4.6 (I think) .dmg files downloaded with Safari (or Firefox) will not mount. If I double click the .dmg on the desktop, it goes away, does nothing and after a long time comes back with a dialogue box (I have never seen before) saying "Warning The following disk images failed to mount Reason: Device not configured"
Any ideas??!!

Have you got another harddrive or second partition to
which you can install OSX?
Nope. That's why I'm so unhappy.
Or try restarting and holding the cmd key ("apple"
key) and the s together until the system boots up in
UNIX - other keyboard short cuts here:
I already did a safe reboot. No change. I also tried using my other account on the Mac - no difference.
and run "f@*ed disk", well properly the "fsck"
command from that UNIX
prompt. See
http://docs.info.apple.com/article.html?artnum=106214
for more advice
I ran DiskUtility (both Repair Permissions and, from the install disk, Repair Disk), the disk is fine. The failure to mount, Device not configured issue remains.
I also used MainMenu to do the Daily, Weekly, and Monthly scripts. I haven't started cleaning cache files yet, with the exception of com.apple.kernelcaches and Extensions.kextcache, as recommended in another post.
I'm leaving the reinstall option until I have more time, and I'll just be mad at Apple for the poor update in the meantime.

Dmg files won't mount, Disk Utility/Toast won't launch?

Hi folks,
I've just joined your fine community in search of help with my problem that I see on Google pops up on boards frequently... but no suggestions have helped me yet...
In a nutshell, if I download any dmg file, eg. Apple updaters, they won't open - the error dialogue is something like "failed to open, no mountable file system". This seems to be an underlying general error, as I also can't launch disk applications like Disk Utility and Toast. They just bounce in the dock and then quit.
I have:
- rerun the 10.4.4 combo installer
- done /sbin/fsck -yf at startup - all reported ok
- booted from and run Disk Warrior - all reported ok
- booted from and run Techtool Pro - all reported ok
- switched to another user account.
And the problem with dmg and Disk Utility/Toast persists! In all other respects, the Powerbook G3 (576mb/80gb) is running fine (apparently).
Hope someone can help
B
Powerbook Mac OS X (10.4.4)

I just went thru a simular problem. A couple of things to try.
Boot of your install disk and ignor the install window and open disk utility from the menu at the top. you are running off the o/s on the disk an not the hard drive. You can repair permissions and the Hard drive because you are now working off a different filesystem.
If that doesn't work do a rinstall from the install disk but when you get to the window that has an "options" button select it (you may have to) and instead of doing a full install. Uncheck all boxes. This way it does not reinstall fonts etc.
You will not lose any files or programs or have to reinstall them. You might have to reinstall devices that have special drivers like printers that came with an install disk etc.
You will revert back to the origional ver like 10.4.1. just go to apple update and let it do its thing.
Good luck

DMGs Won't Mount!

Hello,
I am downloading iTunes 6 for my PowerMac G4 Cube. The DMG file downloads fine. But it won't mount. When I double click on it to mount it, this comes up:
"The following disk images failed to mount
iTunes6.0_Mac_OSX.dmg - Reason: No mountable file systems.
I have deleted a couple of apps such as Chess, Image Capture and iMovie but I do not believe that this has any effect on this problem.
Thanks!

Hi, the DMG could be corrupted. When it's an extremely large file, sometimes missing a few packets makes the file broken. Have you tried redownloading it several times?
HTH,
~FifthWheel

External Hard Drive won't mount - tried Disk Warrior, am backing up as a .dmg...will this work?

Hi Guys,
Hopefully someone can help! Fairly desperate situation here...
I backed up around 700GB of data to an Iomega external hard drive (supplied by the client), using my Macbook Pro...all was fine when I unmounted the drive at the end of the backup.
The client took the drive away and called me to say he mounted the drive in Windows (on a PC), and he was able to work with the files for a time, but now the drive won't mount...
I collected the drive, hooked it up to my Mac Pro, but OSX tells me it can't mount the drive. It shows up in Disk Utility in the sidebar, but not on the desktop...
I tried repairing the disk using Disk Utility and with Disk Warrior, both tell me the disk cannot be repaired...
I am currently making a backup of the drive as a .dmg file, using a program called Disk Drill...it's slow as I expected, but I'm still not sure the .dmg will mount...because surely it's just making a copy of the data exactly, of which some part is not mounting (a mount directory or something???)
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Specialist recovery services seem to think there shouldn't be any problem recovering the data, and of couse, as a costly last resort, that's what I'll have to do, but does anyone know how they may go about doing it? It is something vastly complicated such as a command line thing?
Sorry about the length of this question...just hope someone can help!
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You didn't say what format (filesystem type) the disk was.
However, I'd say your analysis is probably correct. Something has corrupted the disk. You can make a disk image copy to the .dmg which will preserve the data, such as it is, but I doubt extremely if it will fix any file system corruption.
Furthermore, if both Disk Utility and Disk Warrior have said the disk is unreadable I'm dubious that anything else will magically repair it and that recovery probably consists of snuffling through the disk block by block.
However if the filesystem is FAT (Windows) there may be other (Windows) utilities that can fix it.
You said you 'backed up the data'. Does that mean you still have the original data on your MBP? Are you trying to recover the client's changes?

Downloaded Adobe acrobat OK but the .dmg file won't open?

downloaded Adobe acrobat OK but the .dmg file won't open?

And what exact error do you get? What version of OSX? What Mac?
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DMG's not auto mounting after download

I've recently switched to using Safari as my main browser, and I'm having trouble with DMG's not mounting after I successfully download them.
I do have the option enabled 'Open "safe" files after downloading' turned on, and some files auto-open after downloading them, but not DMG's - and that seems to be what I most frequently download.
I even tried creating a com.apple.DownloadAssessment.plist file and added DMG to the safe list, as discussed here. But that didn't seem to make any difference either.
All in all I'm very happy with Safari, but have to get these darned DMG's to auto-mount like they are supposed to.
Any and all ideas welcomed.

Ok, I resolved this one myself.
FlashMount 1.5.2 was the problem. FlashMount is a killer alternative to Apple's Disk Image Mounter in OSX but for some reason with Safari DMG's don't auto mount. There is no problem with Camino, not sure why this is happening which is unfortunate since FlashMount looks to be deprecated.
FlashMount: Apple's Disk Image Mounter in OSX.

DMG backup image won't mount

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TS1545 I have downloaded 10.5.8 combo several times and cannot get it to install because the disc won't mount or the installation gets hung up after restart. My current os is 10.5.1, and I am trying to upgrade to snow leopard. This is on a dual core macbo

I have downloaded 10.5.8 combo several times and cannot get it to install because the disc won't mount or the installation gets hung up after restart. My current os is 10.5.1, and I am trying to upgrade to snow leopard. This is on a dual core macbook pro.

You don't need to update to Leopard 10.5.8 unless you want to keep Leopard. Upgrading to Snow Leopard requires that your purchase the retail install disk.
The following covers Leopard:
Some general advice on updating:
It is worth noting that it is an extreme rarity for updates to cause upsets to your system, as they have all been extensively beta-tested, but they may well reveal pre-existing ones, particularly those of which you may have been unaware. If you are actually aware of any glitches, make sure they are fixed before proceeding further.
So before you do anything else:
If you can, make a full backup first to an external hard disk. Ideally you should always have a bootable clone of your system that enables you to revert to the previous pre-update state.
Turn off sleep mode for both screen and hard disk.
Disconnect all peripherals except your keyboard and mouse.
1. Repair Permissions (in Disk Utility)
2. Verify the state of your hard disk using Disk Utility. If any faults are reported, restart from your install disk (holding down the C key), go to Disk Utility, and repair your startup disk. Restart again to get back to your startup disk.
At least you can now be reasonably certain that your system does not contain any obvious faults that might cause an update/upgrade to fail.
3. Download the correct version of the COMBO update from the Apple download site.
The Combo updater of Leopard 10.5.8 can be found here:
http://support.apple.com/downloads/Mac_OS_X_10_5_8_Combo_Update
If you prefer to download updates via Software Update in the Apple menu (which would ensure that the correct version for your Mac was being downloaded), it is not recommended to allow SU to install major (or even minor) updates automatically. Set Software Update to just download the updater without immediately installing it. There is always the possibility that the combined download and install (which can be a lengthy process) might be interrupted by a power outage or your cat walking across the keyboard, and an interrupted install will almost certainly cause havoc. Once it is downloaded, you can install at a time that suits you. You should make a backup copy of the updater on a CD in case you ever need a reinstall.
Full details about the 10.5.8 update here: http://support.apple.com/kb/HT3606
More information on using Software Updater here:
http://support.apple.com/kb/TA24901?viewlocale=en_US
Using the Combo updater ensures that all system files changed since the original 10.5.0 are included, and any that may have been missed out or subsequently damaged will be repaired. The Delta updater, although a temptingly smaller download, only takes you from the previous version to the new one, i.e. for example from 10.5.7 to 10.5.8. Software Update will generally download the Delta updater only. The preferable Combo updater needs to be downloaded from Apple's download site.
Now proceed as follows:
4. Close all applications and turn off energy saving and screensaver.
5. Unplug all peripherals except your keyboard and mouse.
6. Install the update/upgrade. Do not under any circumstances interrupt this procedure. Do not do anything else on your computer while it is installing. Be patient.
7. When it ask for a restart to complete the installation, click restart. This can take longer than normal, there are probably thousands of files to overwrite and place in the correct location. Do nothing while this is going on.
8. Once your Mac is awake, repair permissions again, and you should be good to go!
If your Mac seems slightly sluggish or ‘different’, perform a second restart. It can’t hurt and is sometimes efficacious! In fact a second restart can be recommended.
9. Open a few of your most used applications and check that all is OK. In this connection please remember that not all manufacturers of third party applications and plug-ins, add-ons, haxies etc, will have had time to do any necessary rewrites to their software to make them compliant with the latest version of your operating system. Give them a week or two while you regularly check their websites for updates.
N.B. Do not attempt to install two different updates at the same time as each may have different routines and requirements. Follow the above recommendations for each update in turn.
Lastly, Apple's own article on the subject of Software Update may also be useful reading:
http://docs.info.apple.com/article.html?artnum=106695
[b]If you are updating Safari (or just have):[/b]
Input Managers from third parties can do as much harm as good. They use a security loophole to reach right into your applications' code and change that code as the application starts up. If you have installed an OS update and Safari is crashing, the very [i]first[/i] thing to do is clear out your InputManagers folders (both in your own Library and in the top-level /Library), log out and log back in, and try again.
So, disable all third party add-ons before updating Safari, as they may not have been updated yet for the new version. Add them back one by one. If something goes awry, remove it again and check on the software manufacturer's website for news of an update to match your version of Safari.
Most errors reported here after an update are due to an unrepaired or undetected inherent fault in the system, and/or a third party add-on.
Additional tips on software installation here:
http://docs.info.apple.com/article.html?artnum=106692
To reiterate, Input Managers reach right into an application and alter its code. This puts the behavior of the affected application outside the control and responsibility of its developers: a recipe for problems. That's not to say that issues absolutely will ensue as a result of Input Managers, but you, as a user, must decide. If the functionality of a specific Input Manager or set thereof is really important to you, you may well choose to assume the associated risk.
Again, the advice is to remove all Input Managers from the following directories:
/Library/InputManagers
~/Library/InputManagers
especially prior to system updates (they can always be added back one-by-one later).
Solutions for troubleshooting installation, startup, and login issues in Mac OS X v10.5
http://support.apple.com/kb/TS1541?viewlocale=en_US

Download failed or won't mount everytime I try updating to 10.4.6

I have 10.4.5 running on my eMac and have the latest security update that I can see on the apple download page. But everytime I try updating to 10.4.6 I get an error message half way through the download that says "Mount Failed" and sometimes "Download Failed". Is there something I'm missing or am I trying the wrong download here? The download I'm trying is the 10.4.6 combo for PPC.
I had been downloading the "combo" since 10.4.2 and things always worked fine. Any ideas?
Please help, Ken

Hi Ken
Welcome to Discussions
The Security Updates are dependant on the version of OS10.4.x you are currently running
Software Update determines that but if you do the download and install yourself then you need to check the relevant document for the upgrade (click on the title and the info sheet will appear). Also the info can be got from
http://docs.info.apple.com/article.html?artnum=61798
If you are running OS 10.4.5 then the latest Security Update will have updated the relevant files as though they were 10.4.8 and that might be the problem
Download the Combo for 10.4.8 for PPC and hopefully it will install (when using the Combo versions you can jump revisions as they in effect overwrite the system files and so give you a complete new system. REMEMBER Backup first , Repair Permisions second , Install Upgrade third
There is also Security Update 2006-007 (10.4.8 Client PPC) to install as well after which Security Update 2006-008 (PPC) may need to be applied again
chris

Dmg downloads won't mount

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