Q: Upgrading to the next OS fromOS 10.6.8
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Oct 20, 2016 5:01 PMby Phil0124,That's going to depend on your exact year/model of Mac.
Open the Mac App Store and try to download el Capitan if your Mac Supports it.
Upgrade to OS X El Capitan - Apple Support
From there you can try to update to Sierra if possible.
How to get macOS Sierra - Apple Support
If your Mac cannot support el Capitan, you will need to buy Lion from the Apple Online Store.
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Oct 20, 2016 5:01 PMby BDAqua,So we know more about it...
At the Apple Icon at top left>About this Mac, then click on More Info, then click on Hardware> and report this upto but not including the Serial#...
Hardware Overview:
Model Name: iMac
Model Identifier: iMac7,1
Processor Name: Intel Core 2 Duo
Processor Speed: 2.4 GHz
Number Of Processors: 1
Total Number Of Cores: 2
L2 Cache: 4 MB
Memory: 6 GB
Bus Speed: 800 MHz
Boot ROM Version: IM71.007A.B03
SMC Version (system): 1.21f4
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Oct 20, 2016 8:58 PMby John Galt,Excerpted from Upgrading to macOS "Sierra" without fear:
If you are still running OS X 10.6 "Snow Leopard", get El Capitan from the App Store, install it, then upgrade to Sierra.
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Oct 21, 2016 8:49 AMby Eric Root,Check to make sure your applications are compatible. PowerPC applications are no longer supported after 10.6.
Applications Compatibility (2)
El Capitan 10.11 Compatibility information
macOS Sierra 10.12: Compatible Apps
Also check to make sure there is a compatible driver for your printer.
Do a backup before installing, preferable 2 backups on 2 different drives.
