#10.11.4 mac dmg mac os#
Your drive must be formatted as a Mac OS Extended (Journaled) volume with a GUID Partition Table. If you’re using OS X El Capitan, use these instructions.) (Follow this tutorial to properly format the drive if you’re using OS X Yosemite or older.
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Your OS X user account must also have administrator privileges. In my articles on creating a bootable installer drive for older versions of OS X, I provided three, or even four, different ways to perform the procedure, depending on which version of OS X you were running, your comfort level with Terminal, and other factors. That approach made sense in the past, but a number of the reasons for it no longer apply, so this year I’m limiting the instructions to a single method: using OS X’s own createinstallmedia tool. Connect to your Mac a properly formatted 8GB (or larger) drive, and rename the drive Untitled.If the drive isn’t named Untitled, the procedure won’t work.) (The Terminal commands I provide here assume that the drive is named Untitled.
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