How to Upgrade a 2017 MacBook Pro to macOS Sequoia Without a USB Drive
A 2017 Intel MacBook Pro can run Sequoia with OCLP, but avoid the Tahoe prompt because newer Apple Silicon-only releases are not suitable for Intel Macs.
Step-by-Step Fix:
- Back up first: Make a full Time Machine backup or clone before changing macOS.
- Download the right installer: In OpenCore Legacy Patcher, use Create macOS Installer and choose macOS Sequoia, not Tahoe.
- Install from the internal disk: If you have no USB-C flash drive, download the installer to Applications and run
Install macOS Sequoia.appfrom macOS after OCLP has built OpenCore for your model. - Install OpenCore to EFI: In OCLP, choose Build and Install OpenCore, install it to the internal disk EFI, then reboot through the OpenCore picker.
- Patch after installation: Once Sequoia boots, open OCLP and run Post-Install Root Patch, then reboot again.
Original Question: "How to update without flash drive"
Hey! So I just purchased a 2017 MacBook pro (2 thunderbolt ports) and was wondering how to update to Sequoia without a USB drive (since there are none available on the Mac itself) I’ve read that it’s possible but a little messy but I want to get the most out of my device. Everytime I run the installer it tells me to update to Tahoe which I’m aware is unavailable on Intel Macs.
If someone could help me it would be so nice
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