How to Fix Upgrading to macOS Sequoia via OCP: Will it do a clean install? (Plus Trash bin issues) During macOS Boot or Installation
Boot failures need a methodical pass through firmware, EFI, storage and USB before reinstalling macOS.
Step-by-Step Fix:
- Back up first: Make a Time Machine backup or clone before changing OpenCore, EFI, root patches, or macOS versions.
- Boot verbose: Add
-v keepsyms=1 debug=0x100so the last real error is visible instead of only an Apple logo. - Check BIOS/UEFI: Disable Secure Boot, Fast Boot, CFG Lock if possible, VT-d unless mapped, and set SATA to AHCI.
- Refresh OpenCore: Update OpenCore, kexts and SSDTs, then run a config sanity check with ProperTree or ocvalidate.
- Use a clean installer: Recreate the USB installer, try another port or USB 2.0 hub on old Macs, and reset NVRAM before retrying.
Final check: Change one thing at a time, reboot, and keep a copy of the last working EFI before the next test.
Original Question: "Upgrading to macOS Sequoia via OCP: Will it do a clean install? (Plus Trash bin issues)"
Hi everyone,
I currently have OpenCore Legacy Patcher (OCLP) installed on my Mac and I'm planning to upgrade directly to macOS Sequoia using the patcher. However, I have two main questions before I proceed:
- Will upgrading directly via OCP result in a clean install? I want to get rid of a bunch of old apps and accumulated clutter. If I just run the installer over my current system, will it wipe everything, or will it keep my files and apps?
- Is there a way to force a clean install or reset to native stock apps using OpenCore?
I tried deleting my unwanted apps manually, but my Trash bin got completely bugged—it won't empty, and it also won't let me restore the files to their original location.
Any advice on the best way to get a fresh, clean Sequoia install using OCP without carrying over this system junk? Thanks in advance!
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