Mac wont mount disk images, and fails to auto detect some usb devices.

for some reason, all of a sudden, my mac won't mount disks. even disks I know in the past have worked.
also, it wont auto detect some external devices. especially jump drives and hard drives and audio interfaces. It has to be rebooted with the the devices connected.
I know its not a hardware problem, because everything runs smooth in windows on this computer.
I did some extensive cleaning recently, and installed a lot of new stuff, but i don't know what could be causing this.
any help would be greatly apreciated!

This USB faq may help.
An SMC reset may help you mount disks.
 DALE

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Invisible Mounted Disk Image

I have a disk image that is encrypted. In opens and mounts as expected on a machine running 10.3.9.
That same disk image when I attempt to open it on another machine running 10.4.9; prompts for the
password and appears to mount however it's not visible in the Finder! When I use a utility to "show invisible files"
it still doesn't appear. If I go to DiskUtility, the volume shows as mounted. It appears with a ls /Volume command in
Terminal. If it didn't appear on another machine I'd say the disk image was damaged or corrupt but it's only on the
10.4.9 machine that it doesn't show. Tried a clean "safe" user account - same results.
I've run all the Maintenance and Disk repairs, Re-did the 10.4.9 (combo) update, DiskWarrior, Drive Genius, etc on
both the Mounted disk image and the 10.4.9 machine.
I've also trashed: Finder Prefs, Extensions.kextcache, Extensions.mkext and
Com.apple.LaunchServices.plist.
Anyone? Any ideas?
G5 Mac OS X (10.4.9)

Even though the disk image did not appear in a "safe user" account, today I
logged in Root and low and behold the image mounted (as it had been) but
this time it was visible appearing on the desktop. I went and changed the
permissions on the mounted disk image to ignore permissions on this
volume. Logged back in my normal user account, entered the pw and it
appeared! The odd thing is have no idea as to how the permissions could
of previously been changed on an unmounted - encrypted disk image.
G5 Mac OS X (10.4.9)

10.4.9 and mounting disk images.

I just recently installed 10.4.9 and now I can't mount any disk images. I get an error saying broken pipe. Any ideas? Thanks in advance.

I just recently installed 10.4.9 and now I can't
mount any disk images. I get an error saying broken
pipe. Any ideas? Thanks in advance.
Here's what MacFixit says :
Disk images not mounting [Updated] Several users report an inability mount disk images after applying the Mac OS X 10.4.9 update.
If you are having a problem where disk images won't mount, try booting in Safe Mode (by holding down the Shift key while starting up), then re-attempting mounting of the disk image.
This solution is particularly useful for the following scenario: You want to try re-application of the Mac OS X combo updater (a common workaround for issues that occur after an incremental Mac OS X update), but are unable to mount the combo updater disk image.
Prior to booting in safe mode, however, you can delete the following files:
* /System/Library/Extensions.kextcache
* /System/Library/com.apple.kernelcaches
and re-attempting the mount. These, and other cache files, are automatically deleted when you boot in safe mode, but you can potentially save some time by trying deletion of these files (then logging out and back in) first.
Another option is to use an alternative tool that can mount disk images, like Mount.app, FlashMount, or Toast Titanium.
MacFixIt reader Joy Denton is one user who had success with our posted workaround:
"Just wanted to let you know that I had the issue of Disk Images not mounting. This occurred after installing Mac OS X 10.4.9 from Software Update. Fortunately, I read your post regarding a possible fix by using the Combo Update and used Toast to mount the disk image. Ran the Combo Update and ran AppleJack once again. I am now able to mount disk images. This was an annoying problem to be sure."
But imho the best advice that can be given about software updates is to always have a clone of your system on another partition or external HD so you can boot on it if anything goes wrong. From an external system you can repair your internal disk, install the Combo update if the incremental one failed, etc.

I have a disk image that fails to mount.

I made a back up of my entire Hard Drive just before I updated to mavericks. For reasons I wont' go into, the original hard drive is now completely bricked and replaced with random data. I still have the disk image, and it is on an external drive. BUT when I try to restore the image to a drive using Disk Utility, and it scans it, the scan fails. I cannot upload the image as it is 196GB. Is there any way I can recover it as it is the only backup of all my data?
Thanks in advance,
Oscar Simpson

• Restoring from a disk image - backing up to Disk Images or other Macs on your network - KB:
http://help.bombich.com/kb/dmg-and-remote/restoring-from-a-disk-image
There may be some ideas, perhaps belated after the fact you already have a .dmg which may have issues built into it, and no original to go back to get another. And magnetically wiped hard disk drive with the magnetic platters totally toasted.
restore data from mac .dmg file:
https://www.google.com/#q=restore+data+from+mac.dmg+file
Hope this helps somewhat.
Good luck & happy computing!

How can I use my Mac G3 (OS 9.2.2) to make Windows disk images and compress them into Windows stuffed archives?

I have a collection of old Windows diskettes, 800 K and 1.4 MB. I want to make disk images (or whatever is the Windows equivalent) and compress them into Windows stuffed archives. I want Windows users to be able to download them, expand the stuffed archives, extract the disk images, and use the softsare on old Windows computers. I need to do the work on a Power Macintosh beige G3 Tower using OS 9.2.2. What software can I get to do it?

To Jan, Greetings
Thank you for your message and for your suggestions.
Is WinZip a Mac application that makes compressed files that can be opened on a Windows computer? If so, then do you have any notion where I could find a version old enough to run on OS 9.2.2?
I noticed that DropStuff 6.0, which I use on my G3 Tower, has an option to make compressed files that are self-extracting on Windows. Do you know if that works? I suppose that I could make such a file and then find somebody with a Windows computer to test if for me.
Yes, I could (shudder) get an old Windows computer somewhere, learn to use it, and do the project that way. Do you know if the old versions of Windows include disk image programs and file compression programs? Or, would I need to buy some old software?
Thank you for the information about the size of the diskettes. As you've probably noticed, I don't know very much about Windows things.
Sincerely,
Frontiersman

I updated to Tiger 10.4.11 & cannot mount disk images &other problems.HELP!

I just updated to Tiger 10.4.11/combo update. I used the stand alone installer (because Software Update since I updated to 10.4.10delta). I repaired permissions before and after the update. Now I can't mount disk images I always get the message "Mount Failed".This occured when downloading and trying to open an existing disk image.I ran fsck, even tried AppleJack all to no avail.I know this problem wasn't there before the update as I downloaded the update and a couple of small utilities and all was well with the world (they all mounted properly). I was doing fine with OSX 10.4.9 but just had to upgrade! Can someone PLEASE HELP ME? I'M grateful for any suggestions and the forums have been good to me in the past.
badcat53

Some part of the OS is messed up... I've heard that if you Deltas you must stick with those, if you do Combos you must stick with those, no idea if it's true, as I always use the bigger Combo Updates.
Most likely the best solution for both of you is an Archive & Install...
http://docs.info.apple.com/article.html?artnum=107120
Then apply...
The combo update for PowerPC-based Macs...
http://www.apple.com/support/downloads/macosx10411comboupdateppc.html
The combo update for Intel-based Macs...
http://www.apple.com/support/downloads/macosx10411comboupdateintel.html

Can't mount disk image error message for TC

After a couple of frustrating days trying to get a back-up to my TC to work (time wasted waiting for the process to fail each time - Can't mount disk image error type messages etc) I finally got onto this forum and find quite a few people sharing my problem! I wont wait as long next time I have a problem to enter the discussions, tho I must admit I don't get many problems with my Apple gear.
There doesn't appear to be a solution in the threads, but at least I am not alone!
How long before and will Apple fix this?

DiskImageMounter.app is in /System/Library/CoreServices/.

How to make iMovie 09 recognize a mounted disk image?

I'm trying to store video clips in a disk image (Mac OS Extended - Journaled, single Apple Partition Map). Previously in iMovie 08 all I had to do was mount the image, start iMovie and it would recognize it as an additional drive. Then I could drag events to it and store them there. In 09 this does not work. It sees the image but has the yellow triangle/exclamation point in it. I cannot for the life of me figure out how to make it recognize the image! I've tried all variations in disk utility to create the image to no avail. Is iMovie 09 looking for a certain file on the disk image to recognize it? Maybe something in the DS_Store file or the .localized? Very frustrating.
Hoping someone can help. Thanks.

jsd2 wrote:
Try the following:
Mount the disk image so that there is a disk icon on the Desktop, and then launch Terminal (in /Applications/Utilities). Copy-paste the following line into the Terminal window, and then type a single space. Do not type <Return> yet:
sudo mdutil -i on
After typing the single space, drag the mounted disk image icon from the Desktop into the Terminal window, click inside the Terminal window, and then type <Return>. Enter your admin password at the prompt (it will not echo on the screen), and again type <Return>.
Hopefully that will enable Spotlght indexing on the mounted image. It might take some time to complete depending on the contents.
The result for this for me, three times, was "Indexing disabled."

General Installation/ Mounted disk images

I am a Mac virgin, having only had my new iMac for 2 weeks. I have recently downloaded/installed some apps (google earth for instance) and notice that if I eject the mounted disk image that the app will no longer run. I can not "hide" the mounted disk in the HD either. It just sits there on my desktop.
Is there no way to rid my desktop of all this clutter? If anything, is there anyway to hide the icons on my desktop like you could on...<ughhh> XP <ughhh>?
Thanks for your help.

What you need to do is quit Google Earth, open the Applications folder (with Finder in front, click the "Go" menu then "Applications") and drag the application into the Applications folder. After it copies, eject the installer diskimage and you can delete it.
Some installers run a program that installs the app and its support files, and others (like Google Earth) just open the diskimage package and show you the application icon, which makes it all to easy to just doubleclick to run. Since diskimages cannot be ejected while files are open, things get messy real fast.
It's a common problem with even experienced Mac users that they continue to run several apps from the diskimage or from their desktop. Hopefully the Leopard version will have this problem fixed.

AFP does not allow to access mounted disk-image on server

I am running a Mac Mini as file and media server.
With Lion installed, it was possible to access mounted image files on the server via afp.
Since I upgraded my MacBook Air and the mac mini to Mountain Lion the mounted disk-image is not anymore available as a network drive when accessing the server.
I figured out that I could still access the mounted image file by accessing the server via SMB. This requires however to connect to the server via CMD K, which is more inconvenient than to just click on the server in the finder sidebar.
It seems that Apple changed the AFP setup for Mountain Lion and that this is an error.
Hope they get it quickly fixed in 10.8.1!

I can't even see my mounted images via SMB... that *****!

Disk images and storage space.

Dear members:
After a disk image is created and saved, how much storage space does one need to work with it ?
Let's say I create a 10 GB disk image that is saved in an encrypted form. Once I try to open it I have first to provide a password and then the drive corresponding to this image mounts to the desktop. Once the drive is mounted, since I have the disk image and the drive, does it mean that I actually have 20 GB added to my desktop folder or both files combined still take up only 10 GB of storage space ?
One other question:
I have saved a disk image to an external Firewire hard disk. When I click on this disk image the drive mounts on the desktop. Is there a way to open this disk image so that the drive is actually mounted on the same external disk where the image is or does it always mount on the desktop independent of where the image is ?
Thank you in advance for your help.
Best regards,
Joseph Chamberlain

Hi, Joseph.
1. You wrote: "In case I wanted to would it be possible to create a disk image on another drive and also mount the disk from this image on that same drive ? For instance, can I create a disk image on an external Firewire drive and then mount the disk from this image on this same external disk ?"I'm not quite sure what you're saying here. I thought I addressed this.
You can create a disk image and save it on an external drive. Double-clicking that disk image (saved on an external drive) will mount it, with the mount point being in /Volumes, same as every other mounted volume on your computer, as discussed in my prior post.
2. You wrote: "On another discussion I initiated one poster said that when creating a bootable external drive it is important to uncheck the square for "Ignore Ownership". I just installed OS X 10.4 on a LaCie 120 GB external Firewire drive and after the installation process noticed that the "Get Info" panel shows the box "Ignore Ownership" checked. Is there a problem ?"You do not want "Ignore Ownership" checked on a bootable volume, i.e. a volume on which you installed Mac OS X. That installation may not work properly.
3. You wrote: "In case there is, shouldn't OS X have unchecked this option as it installed itself on this particular drive ?"I don't know. I've never tried installing Mac OS X on an external volume that had "Ignore Ownership" checked before installation.
4. You wrote: "What does the option "Ignore Ownership" mean and why/when should I use it ?"See "Mac OS X 10.4 Help: I don't have permission to use a disk. The only time I would use this feature is if I had a volume on an external drive, e.g. FireWire drive, that needed to be accessed and written-to by multiple users of the computer to which that external drive was connected. The volume in question should contain only data — not a bootable volume, i.e. one with Mac OS X installed — and one should also be prepared that anyone could add, delete, or modify files on that volume since permissions are ignored when "Ignore Ownership" is enabled.
FYI: When asking multiple questions, numbering them individually is helpful. Then someone can respond by number to link the answer to the question, vs. quoting the text as above.
Good luck!
Dr. Smoke
Author: Troubleshooting Mac® OS X

Disk Images and External Drives - PLEASE HELP

Hi all,
I've got to a point where i can't afford to keep buying expensive drives to work form with Final Cut Pro X so decided to just work from several high spec drives and then back them up on other cheaper drives, reformat the high spec ones and start again.
Not really understanding how disk imaging works I hoped I could carbon copy mountable and read and writeable drives (in this case a thunderbolt lace SSD) on to a cheaper mass storage, wipe it and start again. I hoped it would then appear on the drives top level just as the drive appears on my desktop, and that I could access it if needed or port it back to a single drive at a later date? Is this possible? Can anyone help? So far everything I've tried has failed.
One thought I did have was to create several partitions on the cheaper mass drive and duplicate it on to there? But I can't find any help or instruction for this online and need to make sure its write before I go deleting old projects.
Attached are a picture of what I have (the disk image file) and what I was hoping to create (a mountable replica of a working drive on an external HD)
Any help greatly appreciated.
Robin

You can research the terms disk image and back up for several hours. That might not help.
None of the back up routines I am aware for for video and large media files use any compression or bundling systems like .dmg. I think your best bet is to make one-to-one copies of your files to your cheap drives. If you need the older projects, you copy them back to your working drives. That's pretty much how it's always been unless you are have a nice NAS RAID with mirroring to another rack of drives.
The problem with cheap mass storage is no that it's unreliable. It's just not QUITE as reliable as more expensive systems. Having a copy of your work on a disk that might or is likely to fail is almost the same as not having a backup at all. but there is a point of diminishing returns for all of us in this business. This trend toward 4k and 8k, and FCPX's inability to manage media efficiently, means we all must add TB of storage for every project. A friend of mine includes a couple of TB drives in his fees. The client pays for and gets the drives.

Does Time Machine still ignore mounted disk images? Specifically, encrypted sparse bundle disk images?

My Time Machine backs up to Time Capsule which cannot be encrypted. I also have confidential data in an encrypted sparse bundle disk image in my home folder. When TM backs up and the encrypted sparse bundle disk image is mounted and I'm accessing the data, does TM back up the data "in the clear" decrypted form or does it exclude the disk image because it's mounted? I've done a little research, but there's conflicting information. Not sure what happens in Lion now...

Time Machine does not backup mounted disk images! The encrypted sparse bundle disk image was mounted, I updated a doc and did a TM backup - the file was not listed in the TM repository and the doc remained unchanged in the encrypted sparse bundle disk image on TM. Then I ejected the disk image and did a TM backup - the updated doc was backed up in the encrypted sparse bundle disk image! Thank you!

How to make mounted disk image appear in sidebar

Hi all,
Previously, I had inadvertently dragged the icon for a mounted disk image off the sidebar. It made the cool "poof" thing. I then checked if it was really unmounted using disk image. It was not, so I unmounted it there.
Subsequently, when I would mount that disk image, the icon would not appear in the sidebar. If you run into this problem, you can fix it thus:
1) Go to the Go --> Go to Folder menu item in the Finder.
2) Enter /Volumes
3) Drag the icon of the mounted disk image to the disk part of the sidebar
You will need to aim properly to get access to the sidebar without activating one of the disk icons.
4) All better
This started out as a question, but I fixed it and thought someone else could use the info.
Scott

Nicely done Scott, thanks!

Auto opening a mounted disk image

Is it possible to make a (read/write) disk image once it has been mounted to
automatically open up and show the folder contents?
I can get this to work if I lock the image, but this makes it a pain to trash.

jsd2 wrote:
Try the following:
Mount the disk image so that there is a disk icon on the Desktop, and then launch Terminal (in /Applications/Utilities). Copy-paste the following line into the Terminal window, and then type a single space. Do not type <Return> yet:
sudo mdutil -i on
After typing the single space, drag the mounted disk image icon from the Desktop into the Terminal window, click inside the Terminal window, and then type <Return>. Enter your admin password at the prompt (it will not echo on the screen), and again type <Return>.
Hopefully that will enable Spotlght indexing on the mounted image. It might take some time to complete depending on the contents.
The result for this for me, three times, was "Indexing disabled."

Mac wont mount disk images, and fails to auto detect some usb devices.

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