Once you double click the DMG file it will open as a read only drive and appear under devices, if you then click on the read only drive it has opened as there will either be a .pkg file you can double click which loads an installer menu.
Sep 21, 2007 In order to work with the contents of a DMG file, you must mount the the disk image to your system. This may sound daunting, however “mounting” a DMG file with Mac OS X is no more complicated than double-clicking it’ icon. The operating system will load the load image and place a new icon both on your desktop. Why My DMG is not getting opened without asking security popup. Ask Question. What i found is it is not possible to codesign dmg in centos.And i have no option to copy all files to dmg from my mac itself before uploading to centos portal.As the files to be copied are common for various operating system. Your customer can.
If however it is just a single icon or program on it's own, then you need to drag (or copy and paste) it into the applications folder on the computer.
Once it has finished copying, you can then eject the mounted read only drive image.
Why Is My Mac Not Downloading Dmg On Mac
Additional instructions here; http://www.howtogeek.com/177619/how-to-install-applications-on-a-mac-everything-you-need-to-know/