Big Sur Install Stuck
The progress bar hasn't moved in over 24hrs. I've already turned off and restarted it, no change. Please help.
iMac 21.5″, macOS 10.14
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Shutdown and disconnect all external devices. Restart and immediately hold Shift until the Apple Logo is presented and then release. Safe Mode will do a Repair Disk, clear system cache files and only load Apple Software, extensions and fonts.
The loading will be slow - normal. This process may or may not allow the update process to complete - hopefully successfully