How to Fix OCLP Stuck While Flashing a USB Installer
If OCLP freezes while writing a Sequoia installer, suspect the USB drive, disk format, or a stalled download.
Step-by-Step Fix:
- Wait once: Some stages pause for 20-30 minutes on old Macs; do not interrupt immediately.
- Erase the USB: In Disk Utility, erase as GUID Partition Map with Mac OS Extended or APFS.
- Use another port or drive: Cheap USB drives often fail under large installer writes.
- Download again: Remove the partial installer and let OCLP fetch macOS Sequoia again.
- Create from Terminal if needed: Use Apple's
createinstallmedia, then install OpenCore to the USB EFI with OCLP.
Original Question: "OCLP Keeps getting stuck at random amounts while flashing installer to usb"
 | Mid 2012 MacBook pro running Catalina, trying to get it on sequoia. it’s been stuck at this amount for around 20 minutes, i’ve done this on 2 other macs using the same USB without this happening. [link] [comments] |
![[link]](https://i.redd.it/0e79ztl8xb6h1.jpeg){kind=link}
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