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Objectivist-C

macrumors 6502
Original poster
Jul 1, 2006
443
27
When trying to install Monterey to my cMP, I can boot and complete the installation from the USB stick without error. It then reboots to the macOS Installer partition, and again, seems to complete successfully. It reboots a second time, but the progress bar hangs at 25-30% for a minute or so, then reboots again without any kind of message. I tried letting it do this 10+ times with no progress. I then manually intervened and tried booting from Macintosh HD - Data, which gets to ~50% before rebooting. I’m not sure how to start troubleshooting this, as Googling around doesn’t turn up anyone having the same issue.
 
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