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原帖由: Dan ,

文本:

OK lets get the installer from here {https://support.apple.com/en-us/HT211683|How to get old versions of macOS] format your USB thumb drive with GUID and a journaled file system (HFS+) and then follow this guide [https://www.macworld.com/article/2981585/how-to-make-a-bootable-os-x-10-11-el-capitan-installer-drive.html|How to make a bootable OS X 10.11 El Capitan installer drive]

Then reboot using your USB drive

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