How to create read only disk image?

I used to be able to create read-only encrypted disk images with Disk Utility in Mac OS 10.4.x (Tiger). In the Leopard version (10.5.7) of Disk Utility, the 'read only' option seems to be gone (but I can still do encryption). Does anyone know how this can be done?

A blank empty read only disk image has never been possible. If it's read-only, it cannot be modified, and so it would be blank and empty forever. Not much point in that.
If you want read-only and encryption on your finished disk image, you'll have to put your files into a folder, and then do File -> New -> Disk image from folder.

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How to convert read-only disk image to read/write disk image?

There was some problem with the Mavericks firmware and i keep getting the "white screen of death". I tried the method of backing up Macintosh HD to an external drive via Disk Utility. The problem is I saved it as a compressed file (read-only). I wasn't aware of the problem and went ahead and delete the original Macintosh HD files and set up everything fresh.
Then when i wanted to back up all my old files from Macintosh HD disk image back up that i created, i can't because the dmg is read-only. I tried to convert it to read/write with disk utility but it couldn't.
Is there another way to extract the videos and photos? That's all i need.

A blank empty read only disk image has never been possible. If it's read-only, it cannot be modified, and so it would be blank and empty forever. Not much point in that.
If you want read-only and encryption on your finished disk image, you'll have to put your files into a folder, and then do File -> New -> Disk image from folder.

How to create read only Apex items

Hi,
I'm creating a report using Apex items to display the result values inside editable text boxes. They are then referred by using APEX_APPLICATION.G_F02 etc.
My requirement is to make the last row of this report (the values for "Total") as non editable or read only. Can anybody help me with the code that i would need to add in the query? The query goes something like this:
apex_item.text(7, TO_CHAR(nvl(year_4,0),'999,999,999'), 12, 12, 'style="text-align:right;font-weight:bold"',ROWNUM) "YEAR_4", ..

Surprising. I would have expected there to be a CSS style to disable a form item.
Depending on your reasons for wanting to use APEX_ITEM, you could:
Select your required value as part of the query (without using apex_item.)
Visit your report attributes, then the attributes for your specific column.
Change the column type to text field.
Add readonly=true into the item attributes.
Rgds
Ben

How to create read only properties in a component?

I want to set a property in a nucleus component of global scope as read only, so that it cannot be set via dyn admin. I want this property to be set only via properties file at server startup. I tried removing the setter method as suggessted in the guide. But what happened was the property was not set with the value in the properties file and was set as null. It did appear as read only in dyn admin, but part of my purpose is still not resolved. Any help/info for setting the value from properties file alone and restricting thro dyn admin is appreciable.
Thanks,
Gopinath Ramasamy

You may also try this in your component class by overriding doStartService() which will be called once the component is initialized with property setter has already been called:
import java.beans.PropertyDescriptor;
import java.beans.IntrospectionException;
import atg.core.util.BeanUtils;
import atg.nucleus.GenericService;
import atg.nucleus.ServiceException;
public class MyComponent extends GenericService {
      private String x;
      public String getX() {
          return x;
      public void setX(String value) {
          this.x = value;
       public void doStartService() throws ServiceException {
          try {
                        //make property named "x" as non-writable
               PropertyDescriptor pd = BeanUtils.getPropertyDescriptor(this.getClass(), "x");
               pd.setWriteMethod(null);
          } catch (IntrospectionException e) {
               //handle exception
                        logError(e);
                        e.printStackTrace();
}I think it should make the property "x" rendered as read-only in dyn/admin after it has initialized through properties file.
Update: I have tried it in an existing ATG 9.4 setup and it was working as expected.
Edited by: Nitin Khare on Aug 14, 2012 9:01 PM

How to create ready only user ID in Oracle Apps(EBS) 11i

Hi,
We have a requirement of creating a ID in Oracle Apps 11i as a ready only user.
Please suggest how to create read only user in Oracle Apps 11i ?
Regards,
chandrasekar s

Is this for an application user or a database user ?
See MOS Doc 1290228.1 for application user.
This topic has been discussed many times in these forums - pl use the search feature
https://forums.oracle.com/search.jspa?view=content&resultTypes=&dateRange=all&q=read+only&rankBy=relevance&contentType=a…
HTH
Srini

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...

Read/write disk image vs. sparse

When I create a new disk image in DU, I am given image format options of read/write disk image, sparse disk image, and sparse bundle disk image.
I understand the difference between sparse and sparse bundle, but what's read/write?

A read/write disk image is a traditional (i.e. non-sparse) disk image.
With sparse images, you define the maximum size, but they only consume as much disk space as the content on the disk image - a 1GB sparse disk image with 50MB of data takes (about) 50MB of space on disk and can grow to 1GB.
In comparison, a 1GB read/write disk image will consume (about) 1GB on disk, regardless of how much data is on the disk - 1KB, 1MB or 1GB on the image will all consume 1GB on disk.

Unable to create an encrypted disk image in Lion

disk utility gives the error Unable to create "Volume.dmg." (error - 60008) when creating an encrypted disk image. I am using the following steps:
    1.    Open disk utility
    2.    Select the disk (internal or external) to create the image on
    3.    Select File>New>Blank Disk Image…
    4.    Save As: 'Volume'
    5.    Name: Volume
    6.    Size: 50GB
    7.    Format: Mac OS Extended (Journaled)
    8.    Encryption: 128-bit AES encryption
    9.    Image Format: read/write disk image
    10.    Click the Create button
    11.    Password dialog appears
    12.    When I enter a password the dialog closes after entering only a few characters i.e. before I've finished typing, and the following error message displays:
Unable to create "Volume.dmg." (error - 60008)
I have previously, successfully, created encrypted disk images in Snow Leopard, and I don't know why I can't in Lion
Does anyone have any ideas?

Thanks for this Thomas.
I've tried naming the image differently, but still received the error, I did however try different permutations for the password.
The error seems to happen if I use a purely numerical password string and occurs on input of the 10th numerical character, if I start with numerical character but use an alpha before the 9th number I can continue and create a password, and I can create a password if I start with an alpha and switch to numerals after the first alpha character, purely alphabetical passwords are fine too.
It seems that Lion doesn't like purely numerical passwords greater than 9 characters, whereas Snow Leopard wasn't so fussy. Seems it's a bit of a bug.
Thanks for your help

Question about creating a bootable disk image in Leopard.

I have a Powerbook G4 that originally came with OS9, I upgraded to Tiger and recently upgraded to Leopard. The computer is running great but if it should go down what are my bootable options?
1) Boot from the install disk set then load tiger upgrade then load Leopard upgrade? then reload all my programs back on the G4?
2) Can I create a bootable disk image and save it on an external hard drive and then boot and reload everything at once? ( I guess by asking this question I really don't understand what the full scope of a bootable disk image is?) can someone explain...
Which option is better? I am also running __time machine__... what is the safest and easiest way to use time machine to get my software back together after I get the operating system up and running.
Thanks for the advice

Your best alternative is to create a bootable clone on an external Firewire drive.
How to Clone Using Restore Option of Disk Utility
1. Open Disk Utility from the Utilities folder.
2. Select the backup or destination volume from the left side list.
3. Click on the Erase tab in the DU main window. Set the format type to Mac OS Extended (journaled, if available) and click on the Erase button. This step can be skipped if the destination has already been freshly erased.
4. Click on the Restore tab in the DU main window.
5. Select the backup or destination volume from the left side list and drag it to the Destination entry field.
6. Select the startup or source volume from the left side list and drag it to the Source entry field.
7. Double-check you got it right, then click on the Restore button.
Of course you can use other software for cloning and backup:
Backup Software Recommendations
My personal recommendations are (order is not significant):
1. Retrospect Desktop (Commercial - not yet universal binary)
2. Synchronize! Pro X (Commercial)
3. Synk (Backup, Standard, or Pro)
4. Deja Vu (Shareware)
5. PsynchX 2.1.1 and RsyncX 2.1 (Freeware)
6. Carbon Copy Cloner (Freeware - 3.0 is a Universal Binary)
7. SuperDuper! (Commercial)
8. Intego Personal Backup (Commercial)
9. Data Backup (Commercial)
For use with Leopard always be sure you use a version of the software that is compatible with Leopard.

How do I open a disk image made in disk utility?

How do I open a disk image made in disk utility? I made the disk image myself and it won't let me open it.

Right. So did it ever work? did you use it and check it when you created it? not much you can do that I see.

Unable to create an encrypted disk image with Disk Utility

Hi:
With our upgrade to Lion a few weeks ago, we're now unable to create an encrypted disk image of any type using Disk Utility any more. This problem occurs on 3 different machines, and is reproducible whether one is using an internal HD or an external FW HD. We can successfully create nonencrypted disk images.
This is a duplicate post with all the details here: https://discussions.apple.com/message/18469359#18469359
We haven't had any luck with a solution trying various permissions fixes as helpfully suggested by other readers in response to the error message # (-60008 error), so I'm hoping that someone else has run across a solution from the encrypted disk image perspective and that this tag line will generate some help.
Thank you!

Save As: 01 (on Desktop)
Name: 01
Size: 100 MB
Format: Mac OS Encrypted (Journaled)
Encryption: 256-bit AES
Partitions: Single partition- Apple Partition Map
Image Format: read/write disk image
At the password window that pops up I enter: 1234567890
This says password strength is "Weak"
All works fine
Then I repeated this using:
Save As: 02 (on Desktop)
Name: 02
Size: 100 MB
Format: Mac OS Encypted (Journaled)
Encryption: 256-bit AES
Partitions: Single partition- Apple Partition Map
Image Format: read/write disk image
At the password window that pops up I enter: 1234567890 and when I start to enter the next "1" I get the "Unable to create "02.dmg." (error -60008)
OS 10.7.4
Disk Utility Version 12.1.1 (353)

Creating an Encrypted Disk Image on an External (USB) Drive

I have an external 600 GB drive (2x 300 GB SATA 3.5" disks in a Thecus N2050 RAID0 external enclosure connected to iMac by USB2) onto which I would like to backup a large amount of data (500 GB).
I store this external drive away from my home (in the office) and since I cannot guarantee physically locking away the drive I would like to logically lock the drive by placing all the backup data into an encrypted disk image created on that volume.
I have tried creating an encrypted disk image on my USB volume in Disk Utility (Apple's instructions here) but I experience a number of issues not documented in the Apple article:
1) I am not presented with a drop-down option for the size of the disk image.
2) When I go ahead and try to creat the image I am told that the creation was impossible "file or folder does not exist".
Is it possible to create disk images on USB volumes (I cannot create such a large disk image on my iMac HDD as I do not have sufficient space).
thanks in advance
Raf

I realised that in Disk Utility you must not have any of your mounted drives highlighted in the left hand pane.

Creating a mp3 disk image with disk utility

Hi,
I'd like to create a mp3 disk image with disk utility. In the end I would like to have a mp3 disk that plays in various stero system and macs.
But I want to add some additional files: a png file for a nice folder background of the dmg, a special image for the dmg, and some text files relating to the mp3s.
Is this possible at all? Is there something I have to observe creating the dmg?
Thanx for your help

Is this possible at all? Is there something I have to observe creating the dmg?
You need to know which file systems your "various stereo systems" understand. The default file system created on a diskimage when burning is a hybrid file system- HFS+, ISO-9660 with Rock Ridge, and Joliet with Rock Ridge.

Reading Mac Disk Image on PC

Are there any tools for reading a Disk Image created with Disk Utility on a Windows computer?

Does this page contain anything useful?
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How to create Shared RAW disk on solaris 10?

Hi,
I have built two solaris machine using VMware. I am going to configuare RAC. how to create shared RAW disk for ocr,votedisk and asm?
OS version = 5.10 32 bit
Thanks

use openfiler ( software based SAN) if do not have shared disk storage system, this is an appliance kinda software can behave as SAN storage, it can be installed on VM as a guest machine and rest configuration remain same as storage and your RAC deployment.
http://www.openfiler.com/community/download
alternativly you can follow below method
http://startoracle.com/2007/09/30/so-you-want-to-play-with-oracle-11gs-rac-heres-how/

How to create read only disk image?

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