What's in my blank disk image?

On creating a blank 10MB disk image (apparently now the smallest available) I found it didn't have much room left for files. On closer inspection, 8.3MB was already used on creation, leaving just 1.78MB for my files. According to disk utility it already contains 5 folders and 6 files. I can't remember how to see hidden files, so I can't tell you what they are. Is this a Leopard bug, or is there another explanation. I also had a bit of difficulty un-mounting the image first time round. It seems to be working better now.

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Can't delete a logical volume group created from a blank disk image

Hi all,
I'm a recent convert from Windows, so do bear with me while I grapple with all the new terminology.
Basically, here's the problem: I've been trying to create an encrypted drive and have been at it for a few hours now. I ended up with two 'logical volume groups' created from blank disk images, neither of which are password-protected, and one of which I quite stupidly named "hidden folder" and can't rename now. Anyways, I decided to throw it all away and start right from scratch, but now disk utility won't let me delete these two logical volume groups despite me dismounting both devices, trying to trash the containing folder, etc. Some searching about online has gotten me into the belief that there should be an 'erase' tab in the disk utility window which is not showing up when I click on those drives (however, the erase tab does appear when I click on the indented partitions on each drive). Here's a screenshot to give you guys an idea:
-Here's the disk utility window. The two drives I'm trying to get rid of are "Hidden Folder" and "HD2"
-Here's what I suppose would be called the 'containing folder' in which both drives reside
-And finally my setup, just in case it's relevant
Oh and btw this would be my first post here! How exciting
Thanks in advance,
Arthur

nidra wrote:
When I right click on it these are the choices: Open; Move to Trash; Get Info; Compress...; Burn ... to disc; Duplicate; Make Alias; Copy ...; Clean Up Selection; Show view options; Label; Folder Actions Setup.
That is as it should be. If you select "Move to Trash" does it move the folders to the trash? If so, do the following from my previous post:
tjk wrote:
1. Open Terminal (in Applications, Utilities).
2. Copy and paste the following command into the Terminal window (or type it exactly as follows):
sudo rm -rf ~/.Trash/*
3. Press Return.
4. Type in your password when asked (note: you will not see anything being entered as you type your password).
5. Hit Return.
6. Wait until the process finishes/the Terminal prompt returns.
7. Quit Terminal.
I wonder if I need to do some changes to the rights about doing this action "move to trash"?
Run Repair Permissions in Disk Utility.
this is making me very uncomfortable, I know myself to solve any problems I tackle/___sbsstatic___/migration-images/migration-img-not-avail.png Something so simple as this is making me crazy
I don't know if it would make me any crazier than I am, but I sure wouldn't want a stray folder just hanging around on my desktop either.

Blank Disk Image on TC

I am wanting to create a 150-200 GB Blank Disk Image on my 1TB TC to "save" space for files we would like to store and share on TC. I have looked at Disk Utility and found how to do this under File>New>Blank Disk Image.
My question is: Do I need to create the Disk Image INSIDE the blue folder that hold our back up sparse bundles?
Thanks in advance for any help or suggestions!

The Time Capsule doesn't show up one the left side of the screen in disk utility. When you click the "new image" icon on the top of the screen in disk utility a menu pops up, there should be a down arrow button next to the top line that says "save as", click that down arrow button. The middle part of the popup menu should expand. To the left on the expanded part your time capsule should be listed under "shared". Select your time capsule, and then click the arrow button again next to the "save as" line. Your time capsule should now be shown on the second line that says "Where". Now pick what you want to call the disk image and type it in the "save as box". In the other pull down lines you can pick how big and what format to make the image. Then click "create" and that should do it. Does that make sense to you?

Is it possible to share a Mounted Blank Disk Image using WebDav?

I am trying to find a good solution to give individuals the ability to change files in there hosted websites on the Mac Mini Server (10.6.4), but also having a limited folder size. I have seen a few post on using Blank Disk Image as the share folder. I have created the folder and I can see it contents using a WebDav client, but no matter what permissions I put, anytime I try to upload or delete a file from the image I get a 403 error, saying "Forbidden". I can get the WebDav to work on normal shared folders, so I am wondering if it is even possible to share a mounted blank image using WebDav?

It seems if I make an MS-DOS(FAT) image, I can actually make changes to this image file using WebDav, but I cant see how to changer the permissions of the folder. All the methods I have tried do not actually seem to change the file permissions, they default to read and write for everyone.
I am trying to figure out if I am trying to get something to work that is not even possible. I need to be able to limit the size of a folder, share it with specific groups/users in the Open Directory. It also has to be viewable on both Windows and Mac Systems. FTP does not seem to work, since it gives access to the root. I want to be able to have a student/student group post to a wiki, have a website for there project, but they should only have access to this image....
Does anyone know if you can share a mounted image through WebDav, or if there is another way I can setup multiple folders and have websites point to this folder and give only selected users access to the folder for uploading and sharing files?
Any guidance would be greatly appreciated

Encrypted blank disk image, actually encrypted or just password protected ?

I created 200 GB blank disk image on external drive using disk utility with options 128 bit encrytion. I have thought that the data copied to the disk is just password protected not encrypted as such.
I came to conclusion as when you encrypt Mac internal HDD, you can see encryption/decryption progress in Time Machine(system preferences) where as I do not see any encryption/decryption progress for encrypted disk image while copying huge data.
Anyone knows about it ?

As of OS X 10.7.4, Disk Utility had a bug that prevented it from creating an encrypted disk image with a password of more than 10 characters. I haven't checked recently to see whether that bug has been fixed, but from your report it seems not to have been. There is a workaround, but it's complicated.

Computer Crashes when creating new blank disk image

I'm trying to dreacte a new blank disk image from Disk Utility, but when I select "New Blank Image", I name the disk and hit "Create"my compter crashes and requires restart. Any ideas as to why and how to fix?

Yes, iMovie '08 is more "resource intensive" than iMovie HD. (It takes a lot more RAM to provide all that nice scrubbing ability.)
I'm not sure how large the project you're burning is, but I will say that 1GB of RAM is really low for working with video. Anytime a computer starts running out of free memory, bad things start happening. Applications crash, the system appears to hang, etc. When you quit all the other applications you were running, you freed up RAM for iMovie to use.
I would suggest you bump up the RAM in your machine to at least 2GB. It's not very expensive at all. Less than $80. You can get to 4Gb of RAM for $110! I'd be willing to bet that once you've got more available memory your problem will vanish.

How do I create a disk image for windows 7, using a windows computer for USB bootcamp for mac?

Hi There, I have just bought a new 2013 iMac.
Spec: 3.4 GHz intel core i5, 16GB 1600 MHz DDR3 Memory , NVIDIA GeForce GTX 775M 2048 MB Graphics with OS X 10.9.4.
How can I create a 'disk image' from a windows 7 professional 64bit installation DVD using a windows laptop with windows 7 Operating system on? I want to transfer this 'disk image' (ISO?) to a USB ready for installing windows onto my 2013 iMac using bootcamp? I want to use bootcamp from a USB as I have no disk drive for the installation DVD on my iMac. I hope all this is clear.
Thank you. Joe

Yes, that's correct, at least not directly. You can create a blank disk image, copy the file to the mounted disk image, then burn the image to a CD/DVD.
Open Disk Utility and select Blank Disk Image from the New menu. Provide a name, Save location, and select the image size from the drop down menu. Leave Encryptions at None and Format as read/write. Click on the Create button.
After the image file appears the "removable" disk should be automatically mounted. If not double-click on it to mount it. A "removable" disk icon will appear. Drag the file you want to place on the disk image to the "removable" disk icon. The eject the "removable" disk icon. Now select the disk image file in the DU left side list and click on the Burn icon in the DU toolbar. Be sure to have a blank disc ready.
The above is actually the "long" way to do this. A much easier way is to simply insert a blank CD or DVD into the optical drive. The Finder will pop up a dialog asking what to do. Select the option to mount on the Desktop. You will now see a disc icon on the Desktop. Drag the file you want to burn to the CD/DVD, right-click or CTRL-click on the disc icon and select Burn from the contextual menu.
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Encrypted disk image on external drive prevents that drive from ejecting

I've tested this a few different ways, and it seems to be a rather consistent problem.
I have an external USB hard drive (seagate) and on that drive I use encrypted disk images to store my data.
(because it's a portable drive, I'm nervous I'll lose it and then someone will have access to my stuff).
So anyway, whenever I mount the sparse bundle disk image, when it comes time to eject the drive (after ejecting the disk image of course), it hangs for a while and then the Finder says it can't eject, but that I can Force Eject the drive. When I chose to Force Eject, it works, but I don't like having to force it every time.
Anyone know what's up?
Thanks,
Brian.,

Open Disk Utility > File > New >Blank Disk Image...
or use the "Option-⌘-N" Key combo (with Disk Utlity open).
Kj

Disk Utility 'Disk Image from Folder' looses file create date?

Hi,
I have been working on creating backups that maintain the files' create dates. I have found the following anomoly using Disk Utility.
If I create a Disk Image From Folder, the create dates of all files are changed to be the same as the last modify dates. Not what I want.
If I creat a Blank Disk Image, and then using Finder to copy the files to the Disk Image, the create dates remain unchanged.
I can then burn the backup CD's with the Disk Image and the files' create dates are maintained. So, future restore from the backup CD will contain the original files' create dates.
Does anyone know if Disk Utility's Create Disk Image from Folder is supposed to loose the files' create dates? What other file attributes are being lost? Mac OS X maintains all of these attributes, and create dates via Finder copies, I would expect the Disk Utility Create Disk Image from Folder to do the same.
Bob Horton

To follow up on this post, I know at least part of the answer. The difference between the two becomes clearer if you read the documentation (man pages) for hdiutil and asr. Image 1 will be created in file mode, whereas image 2 will be in block mode, ie bypassing the file system. Image 1 will consist of a series of files, whereas image 2 will contain a series of blocks, mirroring the original layout of the hard disk.
Technically the latter should be faster to restore (in block mode), although Apple recommend the first procedure (see man page for hdiutil). I haven't seen any evidence that images created in block mode can be mounted or restored, although you might be able to burn such images to a optical disks if applicable.
As I've pointed out in another thread (http://discussions.apple.com/thread.jspa?threadID=1508199&tstart=0) I believe that this functionality should not be offered in disk utility, and I consider it a serious bug.

How do I create a Disk Image of a FILE?

How do I get Disk Utility to make a .dmg (regular or encrypted) of a single FILE, not a Folder, Disk or Device, without using a third party utility? OR are 3rd party utiities a better choice for Disk Image creation?
I've read all the "Help" info and it only covers creating a .dmg of a Folder, Disk or Device NOT an individual/single file. [Unless I'm blind]
No matter what I do only folders, disks, and devices are highlighted but all files are grayed out during any .dmg creation.
PowerBook G4 Ti 15" (400-MHz) Mac OS X (10.4.8) 1GB RAM, 80MB HD, AE, AEBS

Yes, that's correct, at least not directly. You can create a blank disk image, copy the file to the mounted disk image, then burn the image to a CD/DVD.
Open Disk Utility and select Blank Disk Image from the New menu. Provide a name, Save location, and select the image size from the drop down menu. Leave Encryptions at None and Format as read/write. Click on the Create button.
After the image file appears the "removable" disk should be automatically mounted. If not double-click on it to mount it. A "removable" disk icon will appear. Drag the file you want to place on the disk image to the "removable" disk icon. The eject the "removable" disk icon. Now select the disk image file in the DU left side list and click on the Burn icon in the DU toolbar. Be sure to have a blank disc ready.
The above is actually the "long" way to do this. A much easier way is to simply insert a blank CD or DVD into the optical drive. The Finder will pop up a dialog asking what to do. Select the option to mount on the Desktop. You will now see a disc icon on the Desktop. Drag the file you want to burn to the CD/DVD, right-click or CTRL-click on the disc icon and select Burn from the contextual menu.
Why reward points?(Quoted from Discussions Terms of Use.)
The reward system helps to increase community participation. When a community member gives you (or another member) a reward for providing helpful advice or a solution to their question, your accumulated points will increase your status level within the community.
Members may reward you with 5 points if they deem that your reply is helpful and 10 points if you post a solution to their issue. Likewise, when you mark a reply as Helpful or Solved in your own created topic, you will be awarding the respondent with the same point values.

OSX G5 Disk Image and HDD manipulation... Help

Hello Everyone.
On the PC a program called Partition Magic, among others, that allows partition copy, resize, create, delete, etc.
I have used Mac disk utility, but I haven't found it to do what I'm trying to do.
I am looking for the same type of program on the Mac that will work on IMAGE FILES. If I image my HDD and it's 60Gb, but only 20Gb is used, then I have a lot of wasted space in my image file. I would like software to adjust the size UP or DOWN for a given image file. And no, I do not want to recreate the whole image everytime I resize it.
Would also like a program that works on the physical HDD to change the size of an existing partition without destroying it.
Thank you again,
Scott
Powermac G5 'Quad' Mac OS X (10.4.4)
Powermac G5 'Quad' Mac OS X (10.4.3)

When you select either of the two options for your camera on the left, you care going to create a disk image of your entire hard drive. If you have a 60GB camera, you will have a 60GB disk image. If your camera is totally full, this may be OK. But if your camera only has 20GB and you want to back it up to a disk image, you could be wasting 40GB.
THe solution is to create a blank disk image with a custom size (that is just large enough for what you need. Make it Read / write (R/W) format. You can mount this disk image later and drag the complete contents of your camera to it.

Trying to archive to a sparse disk image, but everything is different...

I've only created one sparse disk image (a bundle image) a few months ago. I just went to create another one in Disk Utility, and the pop-up window for creating one looks entirely different.
I don't see the options for size, format, partitions, or the name any more. Am I doing something wrong? Or have they changed the way you create these?
I'm attaching a few screen captures. The first is from a tutorial that shows the pop-up the way it used to be when I'd click the "New Image" icon in Disk Utility. The next is the way it looks now. The last is the Disk Utility error message I get when I try to create an image now.
I'm lost on this. Where are all those options? How do you choose between a sparse disk image and a sparse disk bundle? Why is Disk Utility unable to create the image (see the error message below)?

Hi Tom--
Once again, you have the answer. I was clicking the "New Image" button that you see at the top in the first two images I posted. That's what they did in the tutorial, and it worked fine. But it seems the only way I can get the window with all the options is to go to File, New, Blank Disk Image as you show in your picture. I have no idea why mine works differently than the one in the tutorial. Very frustrating.

Putting info into an Encripted Disk Image...?

I created an Encripted Disk Image to file some sensitive things in BUT how do I drag them into it...I show a .dmg icon but I cannot drag any folders into it...how do I go about this..?
Also when I click on the .dmg nothing happens...and it shows a folder of this under '/Volumes' which I can't find....HELP

robert larkin,
In case anything here might be of help to you.
1.
When I create a .dmg and save it to Documents, the drive icon appears in the top portion of my sidebar in the Finder. I can double click to open it, add items, delete items, and then eject it when I am done. I can put the .dmg file wherever I want it to be stored.
2.
Here are three links which I have used to figure out how to work with disk images.
Creating a blank disk image
Creating a disk image
Mac OS X: How to create a password-protected (encrypted) disk image
Sincerely,
No Alibi.
 Backup what you can't afford to lose. Mac OS X (10.4.8)

How Do I Create a Sparse Disk Image?

I'm having trouble creating a sparse disk image. The instructions I'm following are:
+1. Open Applications->Utilities->Disk Utility.+
+2. Select File->New...->Blank Disk Image.+
+3. Name it, set the size to what you'll need, set the encryption to AES-128, and set the format to sparse disk image.+
- http://forums.macrumors.com/showthread.php?t=257063
The problem for me is I do not see an option for "sparse disk image." The only options I see for Image Format are:
+read only+
compressed
read/write
+DVD/CD master+
Is there something I'm missing?

Nevermind, found it.
Figured out there's a difference between pushing the New Image button in the toolbar vs. going to File > New > Blank Disk Image...

Slow data transfer on Disk images created in Mountain Lion

Hi apple community, since upgrading to OS 10.8, every blank disk image that I create using disk utility, no matter what partition setting I use, results in excrutiatingly slow data transfer speeds. I do not have this problem when I use disk images created on previous operating systems. For some reason it's taking about a minute to transfer 40mb to these folders. Any advice would be greatly appreciated, thanks.

It happens with both sparsebundle and DMG, and I've tried various partition settings, including hard disk, CD/DVD, Apple partition map, as well as no partition map.

What's in my blank disk image?

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