Creating Apple Disk Images (*.dmg) on Linux. Super-Simplified
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Uploaded by LordHawke13 on Feb 17, 2010
This is merely a demonstration of a BASH script written by Jon Cowie to use the 'hfsplus' package to create HFS+ Disk Images on Linux. There are currently two limitations on this method:
1) The directory name cannot contain spaces. `$ dd of=${OUTPUT}` with spaces can't handle it.
2) The directory cannot have directories inside it. I don't know how to stat directories recursively, only the top level. In such a case, it won't stat the file size correctly. If anyone has any ideas as to how I can fix these problems, please let me know.
The original files and instructions can be found at http://www.trampolinesystems.com/blog/machines/2008/05/19/creating-dmg-files-...
The original gave you the option to specify the name, volume label, size in bytes, and content directory. I've tweaked it to automatically read the size of the files in the directory and set the size of the image, set the name and volume label as the directory and chown + chgrp + chmod the file for the owner.
A second script called 'makedmg' reads the username so that it can be used for chown and chgrp and then sudo's the mkdmg script where all the juicy stuff happens.
Since it involves mounting the image, only root can execute it. I used gksudo so that it prompts you all pretty-like. . . =P
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