Using disk image

with the help of this forum i now have begin to save all project as disk image and use disk utility to burn all projects...my question now is ... since i have this "virtual" disk out there....can i play it and check all chapters markers, music, etc....before i do the actual burn...if so what program do i use for this?

i can't thank you enough for teaching me step by step...
you are my hero of the day..THANK YOU
now i've got a whole new problem .... hope you can help from here... if not i will post as a different topic...
the problem is that i can see my buttons that i set as chapter markers (which worked great before saving as disk image)...however, when i select each of them they all lead me to the beginning of the project...any ideas or suggestions?

Similar Messages

Password Protected Folders (without using Disk Image)?

Hi All!
This is my first post on here and I'm in need of your help.
Basically, I need to add a password on to some folders but without using a disk image... So you literally click on the folder and it asks for a password in order to open - similar to when you add a password to a word doc.
Does anyone know how to do this, or if there is some kind of third party software which allows you to do this?
P.S. I'm currently running on Lion, however I do have a mac running on Mavericks too.
Thanks.
Matt

No. Not an OS X feature. What's your issue with using disk images? You can make them about any size you need, so they don't waste space.

Backing up and restoring using disk images.

Hi there
I want to create a disk image of a mac's HDD, then put the disk image onto secondary internal HDD, so that in the event of the mac going belly up, I can start from the OSX system disk, format the main drive, restore from the disk image on the 2nd HDD, and off I go.
Using SuperDuper, I created a sparse disk image of the HDD onto the 2nd HDD. SuperDuper created a file called "HDDname.sparseimage". However, when I start Disk Utility and go to restore, it won't allow me to use the created file - the file is visible, just greyed-out.
I used a sparse disk image because I read that normal disk images will be the same size as the original folders/volume and are read only. I only want it the size of the actual data because of space restraints and would prefer to have it read-write too.
Is it a matter of just changing the filename from "HDDname.sparseimage" to "HDDname.dmg", to get DU to access it, or can DU not use sparse images?
Anyone shed any light?
TX
Macfool

Not sure if this will solve your problem, but I notice that although when I click on the Image button and navigate to a .sparseimage file, it is grayed out, I can drag-and-drop that same .sparseimage file into the Source field and it shows up.
Did you try Images menu > Scan image for restore and selecting your sparse disk image to scan?
Hope this helps...

Using disk images for learning games?

Hello, I've 2 g3 imacs running 9.2.2, and they are for the grandkids to use learning games on.
The kids are very hard on the software disks. When I found out about disk images I made them up, now to install them properly. The games are installed, but where to store the disk images? The desk top icons for the games will work after the disk images have been double clicked and the mounted disk image appears on the desktop, but when the imacs are turned off the mounted disk image is lost. How or where does one put the disk images in a safe place so the kids don't get at them, and the disks are mounted every time, without actually starting, when the Mac is started? Start up menu?
I'm planning on multiple accounts with them having a standard account with game privileges so they don't mess the whole thing up. If their accounts get too messed up for me to repair I figured on maybe deleting the account and opening up a new one? Any Ideas are very welcome.
Thank you,
EZ

Hi, EZ -
You're quite welcome.
I had a thought with regard to the disk image files. Are they in a .smi format, or are they in a .img format?
The .img format requires the assistance of the Disk Copy utility in order to mount the image. This is the standard format generated by the user version of Disk Copy. It requires that Disk Copy be available to Finder to act as a helper app in order to mount the image.
The .smi format does not - .smi stands for Self-Mounting Image. The user version of Disk Copy can not make this format; but I have seen a utility to convert .img format to .smi format. The slight advantage with this format is that Disk Copy does not need to be available to Finder.
In both cases the default is to run a checksum verification before the image is finally mounted. The delay caused by this verification can be inconvenient - verification is intended to confirm the integrity of the image after it has been copied, transported, or downloaded, but is usually not necessary when the image resides on a hard drive.
The checksum verification for .img file types can be removed. With the image not mounted, open Disk Copy. In Disk Copy's Preferences (Edit menu), uncheck the Verify Checksum item. Save the Preferences window. Then select Convert Image from the Image menu, navigate to the disk imge file from which you want to remove the verifiaction, select it and click the Open button. A new window will appear, similar to a Save As type window. Leave everything in that window untouched (unless you want to change the base name of the file - the extension .img should be left intact) and click the Save button. The image will be mounted, the original disk image file will be deleted, and a new disk image file created. Unfortunately creating the new image file takes quite a while since it is creating a new one, not actually modifying the old one - but it does get rid of the intrusion of the checksum verification requirement.
I verified on my G4/500 running OS 9.1 that a .img file (one I had made from a game CD years ago) dropped into the Startup Items folder will be mounted automatically at the end of the startup sequence. I also tested with an alias to the .img file, and it, too, worked fine - the disk image was mounted automatically at the conclusion of the startup sequence.
When you make the alias to the disk image file (the .img one), be sure you are placing it into the Startup Items folder, and not the Startup Items (disabled) folder.
If you have the machine set to use Simple Finder (which removes Finder's keyboard commands and many menu options for Finder), that may interfere with items in the Startup Items folder being run at startup. Or, it may not - I have not checked that.
*** Edit ***
I have verified that the alias to a .img file will mount the disk image even when the machine is booted using Simple Finder.
Another thought, related to Multiple Users - if you do decide to set up Multiple Users, and the disk images are of type .img, be sure to authorize Disk Copy for each of the accounts for which the disk images are to be mounted. If you have the disk image files in a .smi format, since Finder views that file type as being an application, you would need to authorize each of those disk image files for each account which is to have access to them.

Using disk image to put data into a "stick" for use by PC & Mac

I am trying to find a quick way to transfer a master file (almost 1gb) onto a series of "sticks" for circulation to colleagues.
I thought that if I made a disk image that would be OK. It works for Macs but PCs say they cannot find a progamme to open the stick. They recognise it as a FAT disk.
PLEASE help me save hours of time.
Colin

I'm guessing the reason you want to 'bundle' up the files is to avoid the slower copy speed of lots of small files? If that or the desire to compress the data is you reason for using a disk image, zip them instead. Windows and most Macs will be able to open the zip file without additional software and any Macs that are running Jaguar or older OS versions will almost certainly have Stuffit Expander which can also decompress zip files.

I want to encrypt data using disk image - will the encryption be retained when the data is backed up by Time Machine?

I want to use the Disk Image utility to create secure, encrypted information storage on my Mac. I am using Time Capsule with Time Machine to back up my hard drive. Will the file still be encrypted on Time Capsule? I am concerned that if someone had access to Time Capsule they could get the data that I want to protect.

If you're not already, you should consider using a sparse bundle disk image as it is more compatible with Time Machine.
With a regular disk image, the image is a single file. If you make changes to the internal files, the entire image will have to be backed up. With a sparse bundle, the image is split into lots of small files. That way, only the small part that contained the changes will need to be backed up.
If the image is small, it doesn't matter much, but if the image is 50GB, you don't want to waste 50GB Of backup space for a 5KB change.

Shared iPhoto Library - any reason to use disk image?

Having read:
http://support.apple.com/kb/HT1198
this article, and also:
https://discussions.apple.com/message/7734210#7734210
this answer, I have a question.
I am running iPhoto '11 on a MacBook Pro and have moved the iPhoto Library to the Users/Shared folder, where both my wife and I have full access to it. This hasn't been tested extensively since my wife is just learning to use the computer, but she is able at least to open it and view the same photos, events, albums, etc. that I do.
What I want to know is, having already set it up like this, is there any good reason to take the extra step mentioned in both of the above linked pages, and move the iPhoto Library to a disk image in that location? (Rather than storing the library in the Shared folder itself?)
Advantages/disadvantages? What difference would this make?

Some users - and I stress some, not all - can find they have Permissions issues using this form of sharing. In practise what it means is that if you import photos your wife may not be able to see them. So, putting the Library on a volume set to ignore permissions (which can also include an external disk, formatted Mac OS Extended (Journaled) ) will avoid the issue - if it arises.
You can repair the permissions in a library as well: Back Up and try rebuild the library: hold down the command and option (or alt) keys while launching iPhoto. Use the resulting dialogue to rebuild. You'll see the option to check and repair library permissions.
Regards
TD

Use disk image as time machine backup volume

I have a large RAID array attached directly to my Mac via firewire (so it is not a NAS). Can I create a disk image file within that larger array, then mount that image as a disk, then use that as my Time Machine target? I see lots of discussion of doing this for NAS, but I cannot get TM to recognize a mounted disk image file as a TM backup volume. FYI, the reason for this is that I want to create a sparse image that limits the amount of space that TM will take, without eating up my entire RAID array, which is huge. Also, by tricking it into thinking it is another volume, TM will still let me back up other stuff on the RAID array to TM.

Thank you,
It's interesting to me that it will work if mounted as an SMB volume (at least according to many other posts). While I agree with you that it won't work, as I have verified that, I wonder if it could work if enabled (similar to the ability to enable unsupported network volumes).
A follow-on question: I would really like to have TM back up FROM a mounted network share to my TM database. I have a network SMB share with a lot of my data on it. I currently have to rsync it to an external drive in order to get TM to back it up. TM is set to ignore network volumes volumes. Interestingly, the SMB shares appear to get mounted on /Volumes instead of /Network, but that is aside, as both directories are set to be ignored by default. Anyhow, is there a way to turn that feature off and allow certain network shares to be backed up (and similarly blocked from back-up in the same manner that I do everything else)? Again, lots of posts out there about backing up TO a network share, but none tell me how to back up from a mounted network share to TM.

Must use disk image with toast or I get coasters

I have four DVD-R 'coasters' behind me. When I went to burn 4X in Toast, I got verification errors each time. So I created a disc image from the Video_TS folder and that worked fine with Toast.
I don't have an inkling what is going on here. Any guesses?
--Cris

By compatibility, I was not referring to compatibilty of the burned disk with various players. I was referring to the compatibility of Toast with the computer/operating system. I contend that Toast has become an unstable product in regard to the issue I raised. That may be argued, but please do not conflate this with another issue.
That being said, the advice of removing superfluous layout file and empty PAR folder that DVDSP writes to the Video_TS file is something I should try.
Perhaps it is germane to the issue at hand. Even if it is not, why chance things with regard to player compatibility?
However, my inclination is to export disk images from now on, so I probably won't give myself that chance.
****, I can't resist a control.
I will delete the above mentioned layout file and empty PAR folder from the Video_TS folder and report back if Toast chokes or not.
The Video_TS folder was written by DVDSP3 to a clean 20 GB partition on a clean 300 GB internal Seagate 'Barricuda' 7200 rpm Ultra ATA drive. The image file, also on this partition, was added later. It is outside the Video_TS folder.
--Cris

How do I encrypt my external hard drive and subsequently a specific file within it, using my Mac? I tried creating a disk image but permission was denied.

Encrypting an external hard drive and specific folders within. Permission denied using disk image.

VKP90 wrote:
When I tried to encrypt a single file within the hard drive itself, I got the following: Disk Utility Progress: Unable to create "Name of my file" (Permission Denied).
When I tried encrypting the entire hard disk itself, I got: A GUID Partition Table (GPT) partitioning scheme is required.
I have also currently used Time Machine on the external hard drive, along with saving other data. Hence, I am not sure if partitioning is going to delete any of this (a video I watched mentioned that using the + button when creating partitions retains current data). Backing up the external hard drive is out of the option since it is the back up to my Mac.
You can't encrypt a single file. I'm not sure what you did to try. You can make an encrypted disk image which begins with a folder, if desired. Or, you can just create a blank, encrypted disk image, then move your desired files into that.
While you could partition off the free space without erasing the disk, you cannot encrypt it because you need a GUID Partition table which requires you to repartition the entire drive, not just the free space.

Disk Image Setup on Time Capsule

I currently use my 2TB Time Capsule as a backup for one laptop and for my iTunes media files (which I periodically back up to an external hard drive manually). I'm planning on adding my wife's laptop's backups to the mix and would like to reserve room for the growing folder of music plus other data files. After some research, it appears that the best way to keep Time Machine from filling all available space with backups from our computers would be to use disk images. I'm considering two different tactics:
1. Create a disk image with a capacity of, say, 1TB to which I'd move the library (I'm assuming that Time Machine will respect the capacity even if the image isn't full, right?). The issue I have with this is that I don't want it to affect how iTunes accesses the files wirelessly. Is there a particular way I should create the disk image so that iTunes simply access the files as it does now (i.e., no encryptions, passwords, turning into sparsebundle files, etc.), but also maintains the capacity in such a way that the backups won't encroach?
2. Keep the library in its existing folder on the Time Capsule, but create a bunch of empty disk images that will keep the sparsebundle backups from encroaching. I could then delete the empty disk images as the need for room increases in the library.
Any thoughts on the best way to do this, or on showstoppers I haven't thought of? Assuming either approach works, I'm also looking for advice on format, partition, and image format specifications for setting up the disk image(s) in Disk Utility. I'm assuming I can avoid the encryption/password problems by simply leaving encryption marked "none."

daveb74 wrote:
if I were going to use one of these drives as my primary iTunes media location, I'd either have to leave it plugged into the TC all the time or manually attach it every time I wanted to access those files. The former seems like a bad idea
Not really. Running constantly is one of the least-stressful things that a disk drive can do, much easier on it than regular starting and stopping.
Do you know of any reason why the disk image idea wouldn't work, specifically?
I wouldn't put your iTunes files into a disk image unless you were sure you were only going to mount that disk image from one Mac at a time. I'd expect the mounting of a read-write disk image on multiple Macs to cause trouble.
Putting empty disk image files on the Time Capsule disk would accomplish what you're trying to do (reserve space so that Time Machine doesn't consume it all), but that requires a fair amount of management on your part to monitor the space usage.
If you decide to go with disk images, be sure that you don't use a "sparse" variety. You want the type that initially reserves the entire amount of requested disk space.

Disk images suddenly will not unmount.

One of several intermittent troubles I am having on my new 24" iMac with Leopard:
suddenly when using disk images none will unmount. Only launching Disk Utility and unmounting them there works. Or logging out of my account. The eject symbol next to the disk image's name doesn't work. Dragging the disk image to the trash doesn't work either. If I have a disk image open and click eject it's Finder window closes, but he disk image remains mounted.
Three wipes of the HD and reinstalls of Leopard have failed to fix this issue.

I've got this one too. It also happens with external drives and not just disk images.
I made a little apple script which ejects disks and disks images.
on open some_items
repeat with this_item in some_items
try
do shell script "hdiutil detach " & quoted form of POSIX path of this_item
end try
end repeat
end open
open the above in Script editor and save it as an application. Put this application (or an alias to it) on the desktop. To unmount one or more disks drop them onto this application (you can do it with several disks at once). I find that this works a bit faster than launching disk utility and ejecting the drives manually. Still, it would be preferable if they just fixed it.

TC Backup Volume Structure - Folder Based or Disk Image?

Hi,
Is the backup volume in TC folder based (which is used on drives connected via USB or FW) or Disk Image-based (used when you 'force-enable' the wireless backup support for TM)? I'm quite curious 'coz what I noticed with the Disk Image-based backup volume is that it crashes the TM's 'disk handling' software when the image bloats to about 14Gb in size. If the TC's backup volume uses disk image as well, then there could be a possibility that the software will crash when mounting huge dmgs.
thanks,
zurc

yikes! pls do let us know what happens if the sparse image goes to about 14GB... my Airport Extreme's disk-handling software crashes when I try to mount a volume with that size... which actually is the size of TM's 'unofficially' supported backup sparseimage.
thanks!
zurc
Message was edited by: zurc

Disk image size

Hello. I have a number of files on an external drive that I would like to save to an encrypted image. The files amount to over 300 gb(and will grow). The external HD is 500gb. Is there a limit to the size of dmg file? Is there a better way to lock/encrypt the external HD rather than using a dmg file? Thanks in advance for your help.
Greg

Thanks for quick response! It looks like the "sparse disk image" format is the way to go. One other question: do I need to have space on my external HD to create various sparse disk image(s)? example: external HD free space is 75gb(out of 500gb)The files I want to put into the dmg file is on the external HD(425gb). Do I need to move the files to another HD, create the sparse image(s) and move back the files? Also, when adding files to the sparse disk image will I be alerted when I reach my limit or when there is no space to expand to my set size? Thanks again.
Greg
There's no limit to the size of a disk image - at
least, whatever limit there is is way higher than
500GB. If you look in Disk Utility -> New Image
there's a popup menu where you can specify the image
size and it includes a 'TB' option, so you can scale
into the terabyte range.
Using disk images is one of the easiest ways to
encrypt data, so that's a good start.
In addition you can create the image as a 'sparse'
image. This means that you can create a 500GB image,
but it will only consume the actual amount of disk
space required by the files it contains. This
contrasts with a typical disk image which would
consume 500GB of space even if 499GB of that was
empty.

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!

Using disk image

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