If that solves the problem, follow the developer’s instructions to remove extensions until you find the culprit. Your Mac restarts without kernel extensions. Click Continue in Safe Mode and release the Shift key. Hover over the volume and hold down the Shift key, and a label appears. Then, wait until your startup volume appears in the main screen next to the Options icon. It was just a key at startup with an Intel Mac, but on an M1 system, it’s a few steps.įirst, restart into recoveryOS as describe above. However, if you are having startup or stability problems, Safe mode lets you restart with kernel extensions disabled for troubleshooting. If you need to use it on your internal boot drive, you will either have to boot from another drive or connect your Mac to another Mac in target disk mode and run SpinRite from the other Mac. Rogue Amoeba provides a delightful illustrated step by step guide.) However, you must not try to use SpinRite on your system boot drive (or any mounted drive). When you start a computer, it loads hard drive master boot program which looks for active partition and the control right is transferred to operating system of the active partition. My question is, is it possible to boot into the Windows partition via the same method - by putting my MacBook into Target Disk Mode and booting into the Windows partition via the iMac Things I've tried: When I hold alt on boot to access the Startup Manager on the iMac, I do not see the Windows partition as an available boot disk. The HDD mode is the regular hard drive boot mode. (To even install kernel extensions, you have to lower system security. The rest operations are the same as creating a USB-FDD bootable disk. Rogue Amoeba, for instance, requires a plug-in, ACE, that Apple treats like a kernel extension for most of its audio software to work. On an M1 Mac, you only need Safe mode when you are having problems with third-party kernel extensions, which some apps require to tap into low-level system resources.

How to boot in target disk mode