I'm trying to resize the.dmg of my MAC OS X installation file because I have only DVD of 4.7 GB and not dual layer disks,at the moment. The problem is that the dmg file is almost 7 GB large and I don't know how to reduce it to 4.7 GB. So,after some research I found a script in this web site:I run it,but I don't know really if it worked,because it has resized the original file only by 1%!
![]() ![]()
Check by yourself the log below. You cannot compress this type of DMG for multiple reasons - so you won't have success with this scripts nor others like it.
The advantage is that it gives you direct access to out-of-the-box distributions as well as the choice to upload your own linux.iso file. It is an open source application, and you can download the Mac DMG file from this location. Once you install the utility on your Mac, follow the steps outlined below to create your bootable USB drive. You'll also want to make sure you have at least 9 GB of disk space free. Please burn '/Desktop/Mountain Lion DVD Image.dmg' to a DVD.
![]()
I'll suggest looking at alternative options, such as buying a dual-layer disk, or simply using a different storage medium such as a USB pen-drive or an external USB hard drive.The reasons this type of DMG don't compress are for example:1) Apple has already used compression on most relevant parts of the installer image - so there's not really much left to compress.2) The disk image size is really irrelevant - the important is how much space it takes up on the DVD, and I'm afraid compressing the DMG won't change that. What you write onto the DVD is not a bit-for-bit copy of the DMG, but rather it would be uncompressed before writing onto the DMG. If not, it wouldn't be bootable nor useable for installing macOS.
![]() Comments are closed.
|
Details
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |