#DOWNLOAD STARTUP PANIC MAC#

Many kernel extensions had already been loaded, but insufficient for the OS release to have been set, and the immediate cause of the panic was “cannot find IOAESAccelerator”. I then started it up again, assuming that it would boot normally from its internal SSD: it didn’t, and panicked instead.įrom the panic log, the panicked task was kernel_task, and the kernel extensions in its backtrace were 4(3.0), with dependencies (1.0.2), (1.0.1) and (11.1). At that stage the startup disk was that external SSD, so when it reached the login window, I shut the mini down and disconnected the external SSD. At that time, it had an external SSD connected via Thunderbolt, and once I had finished in Recovery I restarted the mini. I had originally started the mini into RecoveryOS to check out some details of its Secure Boot process for an article which I’ll publish later this week. I was careful to copy the whole of the panic log into a TextEdit text file and save it. It then booted normally, and, apart from the panic log, was back to normal again. I next went to select the startup disk, where I confirmed that I wanted it to boot from its internal SSD, and restarted it directly from Recovery.

I then went through Options to Disk Utility, where I checked both its System and Data volumes, which were healthy, as were all their snapshots.

I held the Power button again to force the mini to shut down, left it a minute to ensure that it would start up ‘cold’, then started it up in RecoveryOS by holding the Power button until it was loading Options. To all intents and purposes, my mini was dead, apart from its power light. I waited a while and tried to start it up again, with the same result. After a bit of inconsequential fiddling with cables and display controls, I forced the mini to shut down by holding its Power button. What I then had was a mini with its power light on, but nothing on the display, which told me there was no video signal and turned off.

#DOWNLOAD STARTUP PANIC MAC#

This article is about what happens when an M1 Mac panics during startup, and what you can do about it.įor reasons I explain below, when my M1 Mac mini tried to start up, it panicked (although I didn’t of course know that at the time). When they occur during startup, kernel panics are a bigger problem which can readily lead to repeated restarts and panics – the dreaded boot-loop. When they occur following startup, typically when waking from sleep, what normally happens is that your Mac restarts, and once it’s back up and running you’re informed that it shut down abnormally, and presented with the panic log. No Mac should ever suffer a kernel panic, and M1 Macs are designed to further reduce their risk, for example eschewing third-party kernel extensions, but occasionally panics do still happen.

Download startup panic