Convert Raw Disk Image To Dmg

NameDMG
Full nameDMG, Mac OS X Disk Image
File extension.dmg
MIME type
Developed byApple INC.
Type of formatRaster image
DescriptionThe DMG file extension was created by Apple and is primarily used on Macintosh computers and devices. In most cases the DMG file is used to give the Mac devices the ability to install different types of files and software that originate from the internet. The DMG file is essentially a mountable disc image that shows up on your desktop when it is opened. The file contains raw data that is usually both encrypted and compressed. Mac systems treat DMG in the same way they would treat a disc that was inserted and they instantly try to open or “run” the file.
Technical detailsThe DMG file extension was specifically designed for Macintosh computers and users are likely to have a lot of trouble if trying to use them on a Windows device. There may be instances where one can convert the files, but it probably needed to look for additional utilities that will allow the file to be accessed from the chosen device. There are some also executable files that can help with this. However, if the original DMG file was password protected by Apple, those executable applications may not work. The DMG file has several different formats that are used and these include Linux, Fat32, UFS, ProDOS, HFS and HFS+.
Associated programsPower Archiver, 7-zip, Iso Bit Zipper
Wiki https://en.wikipedia.org/wiki/.dmg

Then open Disk Utility (Finder Go Utilities Disk Utility.app). Once Disk Utility is running, look in the left hand pane for the mounted.toast.drive icon. Select it by clicking on it and then click on the New Image Icon at the top center of the application. Navigate to where you want the.dmg stored and name and click Save.

  • Some of the softwares atr also used to convert the ISO file to DMG file. Some of them are. MagicISO: It is a software which is capable to convert many format into disc image file. Click on the MagicISO then click on the File and then click on open our ISO file. Click on Property and then Apple Disc Image and click Save.
  • Rename it to a.dmg extension, as a DMG is a raw image too. In contrast to the above solution, this will work on dd rips of entire drives in addition to partitions.
  • Save “Apple Disc Image” Option. And now you have your DMG Format File, which you just converted to from ISO. With Power ISO: First of all Download and Install PowerISO. Now, Open Power ISO.

Restore a full-disk .dmg file to a raw block device 6 comments Create New Account
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Restore a full-disk .dmg file to a raw block device

Wow, great hint. This is going to go to good use. Thanks!

Restore a full-disk .dmg file to a raw block device

Somehow I thought that was what the menu item Images -> Scan Image for Restore always did... but I suppose there has been at least one occasion where this may have actually been what I needed.
g=

Happily, I've never found myself in a position where I needed to restore my backup image files, (made with Carbon Copy Cloner.) But I'd like to know the routine if I ever need to use it.
My question: since I back up separate partitions into separate disk image files, is this hint inapplicable to me? Does this hint only apply to backing up multiple partitions into a single disk image?
(I had no idea it was even possible to backup multiple partitions to a single disk image...)

Restore a full-disk .dmg file to a raw block device

This is great. I was getting real frustrated with Disk Utility's non-specific error messages. This worked just like you said it would.

Convert Raw Disk Image To Dmg Download

Restore a full-disk .dmg file to a raw block device

Great post. However, when I tried this I got a 'Resource busy' error.
In order to avoid this problem, you have to make sure the mac OS isn't 'using' the device first. To do this just open the DiskUtility.app, and on the target USB hard drive, unmount any of it's partitions. Make sure to not eject the USB hard drive so that the device is still available in DiskUtility and shows up in the result from 'diskutil list'.

Restore a full-disk .dmg file to a raw block device
ImageConvert

Convert Raw Disk Image To Dmg Convert

Many thanks to you and daveosborne for your hints !
1) I'm currently dumping the content of a .dmg file to an external disk.
2) 'with an appropriate buffer size to copy over the whole block image, including partition table and boot sector'
-> what do you mean by that and how can I determine which buffer size is appropriate ?
-> how did you determine the 131072 size ?
For my use I trusted blindly the example and used the bs=131072 option. Untill now it seems to be working... (it's still copying).
I'm currenlty getting tons of lines on my terminal screen that look like :
...
CZlibDecompressor::decompressData: src 0x02E4AA97 srcLen 116073
CZlibDecompressor::decompressData: dest 0x02E26000 destLen 262144
CZlibDecompressor::decompressData: src 0x02E61F0D srcLen 20723
CZlibDecompressor::decompressData: dest 0x02E26000 destLen 262144
...
with sometimes long series of
...
CZlibDecompressor::decompressData: src 0x02E66B71 srcLen 1167
CZlibDecompressor::decompressData: dest 0x02E26000 destLen 262144
CZlibDecompressor::decompressData: src 0x02E66B71 srcLen 1167
CZlibDecompressor::decompressData: dest 0x02E26000 destLen 262144
...
I notice the destLen (I suppose it means block destination length) 262144 is exactly the double of the bs=131072 that was used before. I'm curious if anyone can help me understand this. Does this mean the source data is sparsed over the destination disk by blocks of 131072 or 262144 bytes, thereby fragmenting the disk ?
In your replies, please kindly take into account that I'm a French newbie with a fair level of ignorance of OSX command line technical slang, however not completely ignorant with computers either (one piece of paper even says I'm an engineer :), it's just that I don't understand what the buffer size technically means here.
Many thanks in advance for your insights !