Downloading programs creates disk image on desktop...

When I downloaded Picasa (and Skype) from the web, it created a disk image instead of just installing the program. When I try to open it from the disk image, it says it is from an unidentified developer and asks for permission to open it. Is there a way to get this to install the program like others?

You should be happy to get a dialog asking for permission and your password - with all the malware all over the internet, it is much safer that way.
Most of the time, you will get a .dmg and you will need to authorize the install - another safety feature.
Now, a new feature of ML is that safety net of any application that does not come from the app store or the developer has not yet signed with Apple that his apps are ok, you will get that dialog. You can turn it off by going to the Security & Privacy Pane in System Preferences > General > and check "anywhere" (you must click the lock and enter your password first). Or, you can leave the default setting, and when you click to open a downloaded app, hit the Control key while clicking to open and you will get a regular "open" dialog.

Similar Messages

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

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.

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 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.

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.

Can't create disk image of non-commercial DVD

I am trying to create a disk image of a 3.7 Gb non-commercial DVD instructional video using disk utility.
I can only get about 70 per cent of the way through before the reading/writing of the DVD content freezes for a few minutes, and then I get the message:
"unable to create -- copy.cdr - input/output error."
I have tried repeatedly on both my MacBook and desktop Imac with no ability to clone an image of this DVD. (Same results when I try to do the same thing with Roxio Toast 8.)
Are there any workarounds or perhaps a method of determining definitively if the source DVD is copy-protected ? Otherwise, what is causing these repeated input/output errors ? ? ?

I'm giving up on this particular DVD, not worth any more time tryin different permutations that al seem to fail.
I would have thought someone would have been able to write a software program that will copy ANY DVD --even one with errors in file names etc, since that's what copying routines are supposed to do. This DVD I am trying to copy plays just fine on the Mac, auto-starting DVD player when it is inserted and there are no problems wth either audio or video thru multiple chapters. So the disk can't be THAT bad if it is supposedly error-prone. and yet I get errors when trying to make a simple mirror image of this dame DVD. Go figure ????
If it has such terrible errors, why does it play fine on the Mac and on our living room DVD player as well ??
How do I copy it ??? - "errors" and all . Is there software that will ignore "errors" and just copy the darn thing errors and all ?
this is a very confusing business of too many conflicting standards I guess.

Disk image on desktop

What does it mean, and what did I do wrong, if every time I click on a program, it mounts to the desktop like it did when I first installed it, thereby leaving the image on the desktop until I eject it?

Jargra,
A Disk Image is like a "virtual disk" contained in a single file. This is the "disk image file." When the file is opened, the "volume" it represents is mounted on your Desktop just like a physical disk. Once mounted, it behaves like a physical disk.
Many OS X applications come in disk images. You are supposed to either 1) run the installer that is stored in the disk image, or 2) drag the application that is stored in the disk image to your "Applications" folder.
I think your confusion comes from the idea that dragging the application, still located in the disk image, to your Dock will "install" it. In fact, all this does is create a shortcut to the application that is still located in the disk image.
Mount the disk image on your Desktop. Open it up, and find the application that is stored there. Open your hard drive, then open the "Applications" folder. Drag the application from the disk image to the "Applications" folder. You can now eject the disk image, find the disk image file, drag it to the trash and empty it. Once you have done this, drag the current icon for that application out of your Dock. Locate the copy of the application that is now in your "Applications" folder and drag it to your Dock.
Scott

Running programs as disk images??

So, I'm a recent Mac convert; I've always had PCs before in the past, so I'm still learning about them. I love my new Macbook Pro! But anyway, I have installed Firefox and Adium (an IM program) on my computer, but every time I open them, a little "disk icon" that says either Firefox or Adium appears under the Macintosh HD on the desktop. Is there a way to open those installed programs without the disk icons appearing? Did I install the programs incorrectly or something?
Any help would be appreciated!

jwfrank85,
Firefox and Adium, like many Mac applications, are downloaded in disk images. A disk image is a single file that is an "image" of a mountable disk or volume (a hard disk, a CD/DVD, etc., or some portion thereof). Put another way, it is a "virtual disk."
Once downloaded or copied to your computer, the disk that is represented by the disk image file can be mounted by double-clicking the file. The disk will then show up on your Desktop like any other real disk.
The idea with applications that come this way is that you would then copy the application from the mounted disk image to your Applications folder. Once this has been done, you can eject the disk image, then move the disk image file to the trash.
What you have done is to drag these items not to your Applications folder, but to your Dock. Since the applications that are referenced by the Dock icons are still living within the disk image, OS X automatically mounts the disk image whenever you launch the application.
Mount the disk image(s) yourself, then drag the applications from the disk image to your Applications folder. Drag the original icons out of your Dock, then replace those icons with new ones from the applications that are now in your Applications folder. Finally, eject the mounted disk image(s), locate the disk image files, and drag them to the trash and empty it.
Scott

Lost All SD Card Data Via Create "Disk Image" - Any Hope To Recover?

Hi All,
Hope this is the right place to post - I run Snow Leopard on a June 210 2.66 i7 UMBP. Please forgive my very limited knowledge but I was following instructions on how to create a "Disk Image" of a SDHC Card to preserver exact data so as to enable easy import of Full HD 60FPS AVCHD/.MTS stuff shot on a Sony DSC-HX9V Camera. (Sony PS Video Mode)
I am basically "Monkey See. Monkey Do" & was having a nightmare trying to figure out why I could not transfer the stuff on the SD Card to iMovie 11/ iMovie HD. I read lots of threads here & elsewhere & the advice seemed to be to make a "Disk Image" of the SD Card via Disk Utility & then import into iMovie from there. I found the following online instructions:
http://blog.scoopz.com/2008/10/13/ba...to-disk-image/
I followed the exact instructions to the letter but kept getting error messages a few times & the process would not complete. On the last occasion (4th), the process completed very quickly & a "Disk Image was created on my desktop. I noticed that it said that there was pretty much 16GB free out of the 16GB capacity of the card & when I opened it, all I found were folder icons & garbled descriptions with some strange files - The SAME was true of the stuff on the SD Card which I was desperately trying to back up & save. The Card was full of Data when I inserted it.
All the photos & videos in all folders are now missing/gone & I do not know why. I am desperately hoping there might be some way I can get all the stuff back - is there any hope? What, as someone of very limited understanding of these things, do to recover the stuff on the SD Card if at all possible? I have enclosed some pics so you can see what I see. What happened here - where did all my stuff go?
Many Kind Thanks!

You were on the right track, but now the disk free space doesn't give me much hope you'll recover anything. The .MTS files are in fact the video files:
http://www.etinysoft.com/
Total Video Converter can convert these files to MPEG-4 that iMovie, iTunes, iPhone, and iPod can use. First double check that there aren't any .MTS files left with http://apps.tempel.org/FindAnyFile/ And if it can't find any, use one of these data recovery tools:
https://discussions.apple.com/docs/DOC-1689
Once you have it, then you can use Total Video Converter to get it to a format you can use. I have a Sony DSC-HX-100V and it makes the same sort video files.

IDVD creating disk image larger than it should be.

I exported an iMovie to iDVD and set up the dvd using one of the supplied themes. I checked the disk info to make sure it will fit the DVD-R. The program says my file should be about 3.9 Gigs. The disk burn was incomplete so I tired to create a disk image instead. The size of the disk image is 4.57 gigs.
The incomplete dvd would play all the way until the last few minutes of the movie and then crash the dvd player.
The last time this happened to me I had to reinstall the OS and lost the project I was working on as a result. Does anyone have a less drastic solution?
I have about 60 gigs of free space on my hard drive still.
Thank you

The movie was just under two hours long. It is about the length that I used to make all my previous movies. I know that if I reinstall the OS and software that it will correctly create the disk image. I have already tried reinstalling the iDVD software and the result is the same problem. I also know that the file should fit the disk because when I look at the project info it shows that the project size is 3.8 gigs. It is just that when I do create the disk image the final file size of the image is around 4.57 gigs. (The project info still shows 3.8 gigs after creating the image.)
It would take several days of backing up and reinstalling software and I would like to avoid that if possible as I would also lose a lot of my preference settings. One other symptom, if I tried to burn data disks from the finder, I have to restart between burns or the second disk will fail to burn.

Time capsule error "Unable to create disk image"

Apart from all the various issues on the discussions I noticed the following with the latest releases on the TC 7.4.1.
My time capsule stopped backing up and started asking for a password; also the capsule was unable to mount on the desktop in the finder. If I gave the TC an I.P could mount it but it still refused to back up, one of the other things I noticed the TC started to ask for a password, which it never asked for before the software update.
My solution given two weeks of late nights going out of my mind were to delete my prefs including my keychain prefs and repair my permissions using disk utility, which found several problems, my TC now backs up after several weeks without it going backwards and forwards through previous updates etc.
It's drastic but it worked for me.
Hope this helps

I am still experimenting. To narrow the problem, I decided to create individual disk images of the folders in the User folder. The first one I tried was 7 GB and worked fine. Overnight, I tried one that is 13 GB. It failed with an out of room message on the startup disk! The startup disk has 17 GB free. Nothing should have been written to the startup disk!
This time, I configured Disk Utility to read from the startup disk and write to an external disk. The destination disk had more than enough space. But, I ran out of space on the source. It appears that Disk Utility is writing all or a portion of the compressed file to either the startup or the source disk and running out of room.
Previously, when I created the image of my user folder (instead of my wife's), the source was my user folder on the startup disk and the destinaion for the image was on an external disk. The difference I see is that my startup disk has enough free space for the entire compressed image file.
In my first attempt that gave me the -39, both the source and the destination disks were external. So maybe Disk Utility is creating the image on the source and at the end copying it to the destination. This would explain the difference in the error messages.
I'll try to confirm all of this in the next few days and report my findings.

Disk Utility - Input/Output error when creating disk image

Hello!
A few days ago I was unable to turn on my Macbook Pro, and was stuck on the white screen. I've been searching around quite a lot on this forum, and before I try fixing anything, I REALLY need to back-up my files! I just bought a 2TB hard-drive, which I have partitioned to GUID and Mac OS Extended (Journaled), (it perfectly works on another Mac).
I now want to attempt to create an image of my harddrive (Macintosh HD) onto my external drive (which is empty). I've tried doing this both in 'read-only' and in 'compressed', but about halfway through, I receive a message saying "Unable to create 04/2014 backup.dmg (Input/Output) error".
I saw on another similar post that I might want to install DiskDrill or DataRescue. I'm fairly sure this is impossible for me to do, since my screen is completely white, and I'm unable to access my desktop.
I can only access Disk Utility through pressing command+R when starting my computer. Hence, I need to successfully back up my files through Disk Utility...
I'm aware that my HD may be corrupted since this is happening, but there must be a way for me to put an image on my external HD?? A few days ago, when I clicked on Repair Disk it said "Impossible to repair: invalid node structure". But now, it says that "Macintosh HD appears to be OK". I have no idea what's changed... And I can still not start my computer past the white screen...
I'm very bad with IT and computers, and have extensively tried to fix this on my own, but I'm now stuck here, with this "input/output error"...!
Any suggestions would be greatly appreciated! Thank you!
PS: I do not have Applecare, this is an old computer from 2009.

Thanks for your answer.
Yes, I thought that might be the case - but I'd taken my Mac and Logic disks to a Genius bar, and the 'Genius' had said he'd fixed the issue. I just wish he'd explained what he did and why he didn't replace the faulty disk(s)!
But is there any way around having the claim a disk, now I'm living abroad and my 'warrantee' has run out? It's going to be a pain in the fundament trying to claim a replacement set.

Downloading programs creates disk image on desktop...

Similar Messages

Maybe you are looking for