Maybe you just want a different flavor of MacOS other than your current version. The primary use for this is that it enables old-style kernel panics that show scrolled text on the screen about why the system panicked, instead of displaying the gray backdrop and the message to merely restart your system. Perhaps your Mac’s system has run into some problems or isn’t working correctly. If you have downloaded it from any other source, place it in the application folder. Download the macOS developer beta from Mac App Store. Also, with the DMG your should the download the TransMac software from the link down below, and for the flash drive, you need 8 GB or higher. Another option is to use debug=0x14e, which will display even more logging options. Create a bootable USB drive for macOS Sierra. This is a combination of kernel debugging features that will show you extra information about the kernel's processes, which can be exceptionally useful if a system is experiencing kernel panics. For instance, to set the system to boot into Safe Mode and verbosely show items as they load during startup, you can either run both of the commands listed above to do this, or you can simply combine them into the following command: With these options you can set them individually by running the above commands one at a time, or you can combine them if needed.
This command will have the system always boot into Safe Mode. We have now completed all the most complex steps. Press and hold the Option key for Intel Mac or press Power button for M1 Mac Select the volume with the bootable installer and.
#HOW TO SETUP A USB BOOT DRIVE MAC SIERRA INSTALL#
This command will set the system to always boot to Verbose mode, so you do not have to hold Command-V at startup. Now that you have a bootable USB drive, you will still be able to force install macOS High Sierra from the bootable USB drive, no matter how old your Mac is. Does it boot to Single User Mode, CMD+s keys at bootup, if so try.