Disk Image Creation hanging

I wanted to be able to lock certain files with a password, so I created a 2.8 GB disk image to store them in. Now that I am realizing the 2.8 GB is not enough, I'm trying to either increase it or create a second disk image that is 8 to 10 GB and then transfer the contents there.
Increasing the current image size failed. And every time I go to create a second one, it just sits at the halfway point in the progress bar. I figured some hard disk or network action was causing it to falter, so I turned all services off, disconnected the ethernet cable and tried again; same results.
Any idea?

as i explained, a regular r=disk image will take as much space on the hard drive as the max size of the image you specify at creation. this is highly inefficient. a sparse image will only take as much space as the data inside. and you can choose any max size you want. choose 300GB. you'll never reach it and so you'll never have to resize.
the difference between sparse bundle and a regular sparse image is that a sparse bundle is split in a number of bands. that makes it convenient to use when doing incremental backups with time machine. if you don't use time machine then you don't need to worry about that.

Similar Messages

  • Encrypted Disk Image creation slow?

    I just got a new MBP with Leopard. I have created a number of encrypted disk images in the past using Tiger and a MBP and have not had any trouble. This weekend I tried a few times to create a 50 gig encrypted disk image (128 AES) on an external drive and after going through the process of setting it up and waiting for it to be created, (and watching the progress bar as it was being created), after about 45 minutes NO progress was showing on the progress bar. I ended up having to cancel the creation a few times because I thought something was going wrong. I’m not sure if there is a problem creating the disk image, or leopard is slow, or what.
    Does anyone know how long, on average, it would take to create an encrypted disk image of this size using leopard? I just want to know if there is a problem doing this on my MBP. Thanks for the help.

    A regular 50 GB disk image takes 50GB of space, no matter if it is full of files or empty.
    A 50 GB sparse disk image only takes up the amount of space equivalent to that of its enclosed files. So if the 50GB sparse image only has 1 GB of files inside, the image won't be much bigger than 1GB.
    A sparse bundle is similar to a sparse image, but instead of a single file it is a folder package with many, many enclosed files called bands. A new file added to the sparse bundle will tend to modify only a few bands. This makes incremental backups of a sparse bundle more efficient because only the changed bands need to be backed up again. Any change to a sparse or regular disk image will mean that the entire image will need to be backed up again.
    If you regularly add/remove files to a disk image, and you intend to back up that disk image with Time Machine, a sparse bundle is definitely the way to go. The other types will fill up your TM volume very quickly.

  • Encrypted disk image creation very slow-

    I just got a new MBP with Leopard. I have created a number of encrypted disk images in the past using Tiger and a MBP and have not had any trouble. This weekend I tried a few times to create a 50 gig encrypted disk image (128 AES) on an external drive and after going through the process of setting it up and waiting for it to be created, (and watching the progress bar as it was being created), after about 45 minutes NO progress was showing on the progress bar. I ended up having to cancel the creation a few times because I thought something was going wrong. I’m not sure if there is a problem creating the disk image, or leopard is slow, or what.
    Does anyone know how long, on average, it would take to create an encrypted disk image of this size using leopard? I just want to know if there is a problem doing this on my MBP. Thanks for the help.

    A regular 50 GB disk image takes 50GB of space, no matter if it is full of files or empty.
    A 50 GB sparse disk image only takes up the amount of space equivalent to that of its enclosed files. So if the 50GB sparse image only has 1 GB of files inside, the image won't be much bigger than 1GB.
    A sparse bundle is similar to a sparse image, but instead of a single file it is a folder package with many, many enclosed files called bands. A new file added to the sparse bundle will tend to modify only a few bands. This makes incremental backups of a sparse bundle more efficient because only the changed bands need to be backed up again. Any change to a sparse or regular disk image will mean that the entire image will need to be backed up again.
    If you regularly add/remove files to a disk image, and you intend to back up that disk image with Time Machine, a sparse bundle is definitely the way to go. The other types will fill up your TM volume very quickly.

  • 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:
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    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.
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  • Unable to create restore disk image with Disk Utility

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    Initializing...
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    /Volumes/HOME_HD: Authentication error
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    Initializing...
    Creating...
    Copying...
    could not access /Volumes/HOME_HD/./Users/delos/Music/iTunes/iTunes Music/David Bowie/The Best Of David Bowie 1974-1979/01 Sound And Vision.m4a - Input/output error
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    Greetings
    Gianmarco

    Hi Lee, thank you for your answer, indeed I've just read carefully your article few hours ago, while I googled the net to find some hints on my issue. I think that I've followed exactly the right procedure to make the back up image, and can't find what is wrong. Actually Disk utility Repair disk successfully repaired the allocation bit (whatever that means) of the music files but that wasn't enough to let the creation of the disk image. Quite odd that the music files where recognized as messed up by Disk utility only booting from Tiger DVD and not while the Powerbook was connected to an iMac running Tiger too.
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    Greetings
    Gianmarco

  • Disk Image loses all features but Anime Pop theme

    I completed the iMovie, clicked on iDVD, went through the whole process of customizing, then created a Disk Image on my Desktop as last chance to check content before burning. My Mac reported, two hours later, that a successful Disk Image had been created, as "Outriggers.img." and there it was on my desktop.
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    BUT when I tried to review it on iDVD it showed nothing (no movie) but Anime Pop going round and round with drop zones empty,
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    Suggest you create a disc image and then burn the DVD. File/Save As Disc Image...
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  • How do I create a Disk Image of a FILE?

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    PowerBook G4 Ti 15" (400-MHz)   Mac OS X (10.4.8)   1GB RAM, 80MB HD, AE, AEBS

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    Why reward points?(Quoted from Discussions Terms of Use.)
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  • I've resized disk image, but it still won't accept new files

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  • Disk Utility create encrypted disk image hangs

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  • IDVD Hanging On Disk Image AND Burning

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  • Disk Utility Hangs "Closing Session" when attempting to burn a disk image

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  • Disk images not mounting

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    I was able to get a partial fix of this problem by following instructions that I found on the All Experts web site:
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    All of these files and folders were date 18 Aug 2009, which is in around the timeframe when I installed the last security update for OS10.4 ppc.
    I say the solution is a partial fix, because it did allow me to open some, but not all .dmg files (the problematic ones are showing a checksum error). Now I find that iTunes will not operate (yeah I know that should be another thread), but I have not used it in several weeks, prior to the last OS update.

  • How do I mount a disk image that won't open?

    I have an external drive Samsung 500 GB that was failing. I think my MacBook Air (10.6.8) caused it to fail because it wouldn't allow me to eject the disk even though I forced quit all programs. I eventually had to just unplug the drive and this caused the external disk to fail as it had not been ejected properly. Not my fault. It's the MBA's fault for not letting me eject the disk. Now the Samsung disk won't mount properly and I get a message that the drive is failing and I should save the data.
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    Sadly, I think the Samsung drive is ruined beyong repair as it's making a lot of clicking sounds and doesn't mount properly in Disk Image and I get a message that it's beyond repair or something like that in Disk Utility.
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    BTW, I learned how to eject a drive when it won't eject the normal way, I have to use command window and type in commands, but that's another post ....
    Any advice?
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    Thanks for any advice.

    I think I've found the solution to this problem.
    http://superuser.com/questions/19426/im-unable-to-mount-a-dmg-getting-a-no-mount able-filesystems-error
    I am following the instructions here:
    I ran into a similar situation. I did what simonair suggested and I received a message in Terminal that Volume mounted successfully. However It did not help me access the mounted Volume neither was I able to confirm the mounted Volume. Nor was I able to mount the image using Disk Drill or even scan through. Nothing succeeded.
    Here is what I did to solve my problem. I see that in this post some suggested that we should convert name.dmg to writable file. I used the command from Terminal to convert but was not successful. INSTEAD alternatively, I used Disk Utility, attached the Volume (yes I got the same message again, ''no mountable system files'' however, Disk Utility nevertheless attached the image, which I was able to do before anyways. This time, I selected it and then clicked New image, and then selected image format read/write, not the compressed option. I created a new image. This time this image was writable however, it still would not mount using Simonair's solution. However, this time I was able to scan it with Disk Drill with exact file locations and folder hierarchy as I had. Recovering all from thereon was a breeze. Just remember: when you create new image of an attached volume and chose not compressed but read/write, you need to have a disk with exact amount of space that totals the total space allocated within that name.dmg file (not the amount of space the data takes). Mine was huge, and luckily I had an external disk with enough space to do that and it took about 5 hours for about 400GB of disk allocation. Good luck.
    And so far it seems to be working. Even though the volume is grayed out on the left side of Disk Utility, I am still able to select it as the source for making a new disk image. I chose Read and Write and no compression.
    The only thing I might be doing differently is that instead of choosing the disk image as the source, I chose the volume as the source. The volume is grayed out, but the disk image is not.
    It seems to be working all right. Keep my fingers crossed.
    If this doesn't work, I will use Data Recovery 3 as a last resort.

  • How do I create a start-up disk image without restarting from the Install DVD?

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    Situation:
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    OS X Lion includes a new feature called Lion Recovery that includes all of the tools you need to reinstall Lion, repair your disk, and even restore from a Time Machine backup without the need for optical discs.
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