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Old Jul 16, 2006, 11:56 PM   #1
swarnap
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Difference between .pkg and .dmg file?

Hi All,

Can anyone tell me what is the difference between a .dmg file and .pkg file for Mac OS? The .pkg file is created using the PackageMaker of Mac OS for creating the installers.
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Old Jul 17, 2006, 12:13 AM   #2
mark!
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*.dmg is a disk image, and a *.pkg is sort of like a zipped file.
I don't know the advantages to either of them, though.
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Old Jul 17, 2006, 01:54 AM   #3
solaris
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DMG:
* Disk image format, like ISO, etc...
* Is not an installer, just a way to store files.
* Supports encryption, password protection and compression.
* Single file (ideal for distribution).

PKG:
* Installer package. Can install files to different locations, etc...
* Support compression.
* Is just a folder, with multiple files inside (just like .app). So it is not suited for distribution.


More information:
http://en.wikipedia.org/wiki/.dmg
http://en.wikipedia.org/wiki/Installer_%28Mac_OS_X%29
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