HT206886: How to get macOS Sierra
Learn about How to get macOS Sierra
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Helpful answers
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Jul 3, 2015 3:13 AM in response to whee182by dominic23,OS X 10.10. Yosemite system requirements:
http://support.apple.com/en-us/HT6412
2GB RAM is inadequate.
OS X Yosemite works well with 8GB RAM installed.
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Jul 3, 2015 1:54 PM in response to whee182by Eric Root,Check that your computer is compatible with Mountain Lion/Mavericks/Yosemite.
To check the model number hold down the option/alt key, go to the Apple menu and select System Information.
- MacBook (Late 2008 Aluminum, or Early 2009 or newer) model number 5,1 or higher
- MacBook Pro (Mid/Late 2007 or newer) model number 3,1 or higher
Your Mac needs:
- OS X v10.6.8 or OS X Lion already installed
- 2 GB or more of memory (More is better - 4 GB minimum seems to be the consensus)
- 8 GB or more of available space
Check to make sure your applications are compatible. PowerPC applications are no longer supported after 10.6.
Applications Compatibility (2)
Do a backup before installing.