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Macintosh HD: the main partition containing your OS X installation, formatted using HFS+.For MacBooks running OS X versions up to and including 10.12, the partition layout will typically look like this: MacBooks are partitioned using the GPT scheme by default. However, if you plan to remove OS X completely, make backups of these files, which you will need in Linux for adjusting the color profile: It is advisable to keep OS X installed, because MacBook firmware updates can only be installed using OS X. Note: If you uninstalled OS X or want to reinstall it, Apple has great instructions.
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