In this article I show how you can how I loaded a newer operating system onto an older (mid-2010) MacBook.
Background
Prior to the emergence of tools like OpenCore Legacy Patcher, I was side loading newer O/S to obsolete Apple products.The OpenCore Legacy patcher project has advanced to the point where folks should simply leverage that toolset in order to achieve adding a newer O/S to an obsolete Apple device.
The MacBook I was using to test is a mid-2010 MacBook with only 2 Gbytes of memory. During my work, while I was successful getting a newer O/S loaded, I found that the memory was an issue so I stopped testing, ordered and installed 8 Gbytes of memory.
Current Situation
Since I did not use the OpenCore Legacy Patcher to build my device, I have ended up with a dual boot mid-2010 MacBook. To accomplish this, I partitioned the default hard drive, effectively splitting the drive into two equally sized partitions (however I put 12.6.5 on an APFS partition):
Unfortunately, the OpenCore patching tools do not like or recognize APFS partitions and currently only support up to 12.6.4. Regardless, I currently am running Mojave 12.6.5.
Recommended Approach
With the significant advancements of the OpenCore Legacy Patcher project, I recommend that folks simply use their tools found here in order to breathe more life into their older Apple unsupported devices. My approach required more comprehensive understanding of devices, drivers, etc and therefore I do not describe all the steps that I used to accomplish my dual boot approach.
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