Others, like resetting SMC and NVRAM, are no longer needed on the latest Macs. Some of the more advanced options, like Verbose mode, are now hidden away. Target Disk Mode: go to the Recovery menu and select Share Disk.Set a Default Startup Disk: select your disk as above, then hold down the Option key and click Always Use.Startup Manager: all your bootable disks will be displayed in the startup options screen, so just pick the one you want.Safe Mode: select a volume, hold the Shift key, and click Continue in Safe Mode.This will launch the macOS recovery mode, from where you can access some of the other boot modes, including: Power on your Mac and keep holding the power button until you see the startup options screen.Instead of starting your computer and holding down certain key combinations, you access the options in a different way: When the Options icon appears, you will also see a list of volumes. The startup options for M1 and M2-based Macs have changed. When you see your Mac has powered down, hold down the power button until you see a prompt that says Loading startup options. Note 3: If you get a CAN'T OPEN error, it means that you forgot to plug in your USB stick BEFORE powering on the computer, so turn the Mac off and start over from step #1.The Mac startup keys listed below refer mostly to Intel-based Macs. (Windows is the default - this can be changed if desired.) As Ive mentioned, Apple offers drivers for Mac hardware to users booting into Windows via Boot Camp. And this offers the choice to boot Windows or Ubuntu. Note 2: If you want to boot a non-Macintosh partition, say for instance a PPC Linux distribution, then change tbxi for yaboot When you boot to the Boot Camp installation, you get the Windows boot menu. Mac Linux USB Loader will create a bootable USB drive that will work on your Mac and boot into that Linux distribution without any problems or hacks. Choose the appropriate options and click Begin Installation to continue. If it still doesn't work, you can try this command: boot ud:,\:tbxi Select the Linux distribution’s ISO file you downloaded and choose a connected USB drive to put the Linux system on. Note: You may have to change usb0 for usb1 depending on which port you plugged your USB stick in. Then at the Open Firmware command prompt, type this and press ENTER: boot make sure that there are 2 backslashes before :tbxi just in case this page contents gets screwed up in the future) Power the computer on (or restart it if it's already running) and immediately.ģ.hold down those 4 keys together: until you see the white Open Firmware screen.Ĥ. Plug your USB stick or drive in an USB portĢ. To boot a PowerMac (or an iMac, iBook, eMac, etc.) from an USB stick or drive, if you have a G5 or late G4 model, first refer to the boot from CD guide and if it does not work, then follow these instructions:ġ. If you have installed Windows iSO files on your Mac, try UNetbottin, plug in the USB on Mac, and launch the Disk Utility option.

Booting imac from usb