Optimal macOS Selection Guide for Legacy Macs (Core 2 Duo / Haswell)

By Ufuk Durgun
0

Best macOS Version for Older MacBooks and iMacs

Choosing the right macOS version for Core 2 Duo and older i5/i7 Macs ensures a stable experience without slowing down the machine.

Upgrade Recommendations:

  1. Core 2 Duo Macs (2009-2010): We recommend macOS Monterey or Ventura. macOS Sequoia is not recommended due to heavy performance degradation.
  2. Ivy Bridge / Haswell Macs (2012-2014): These models run macOS Sonoma smoothly. Sequoia runs fine if upgraded with an SSD and 8GB+ RAM.
  3. Always Install SSD: Running APFS on mechanical hard drives causes major slowdowns. Upgrading to an SSD is mandatory.

Original Question: "Macbook Pro 5,5, file system error while installing Sequoia"

I'm installing Sequoia on my macbook pro and after the second rebbot I got the "file system verify or repair failed (-69845)" error. How do I fix it?

submitted by /u/Kartuniku1
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