The computer will start up from the chosen volume, but bear in mind performance will likely be much slower than when you normally operate your Mac. This is especially true of USB flash drives.
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- Select CD-Rom Boot type on Mac-Mini .
- How to start up your Mac from a bootable CD/DVD, USB thumb drive or external storage device;
This will bypass the selection menu and immediately start from the disc. Like what you see? Subscribe via RSS , email , or Twitter!
How to select a different startup disk
Thank you! I have been searching forever for a solution, and holding down the option key to boot from an external dvd was the answer! When i try to boot from my Memory stick 16gb it doesnt show up next to the hard drive? It was much faster than the speed 2. Recently, I got a new iMac with 3TB fusion drive. But there are things I would like to do with my old lion drive. On the new mac there is no firewire so I had to hook it up with USB 2.
I suppose there could be 2 problems… 1.
Use Startup Manager
I hope it is the latter. I am getting another 3 TB drive to mirror my 3 TB fusion drive so that I have a bootable copy of my current setup so if something goes wrong I can plug in and go. I would like to boot from USB3 if possible. I am not sure that the Mac can boot from USB3 and fear that I may have to boot from firewire which means buying an adapter that converts from thunderbolt to firewire.
I used a program to clean my poermac g5 non intel power pc now when i type my pass word at log in some of the keyboard keys dont work so i can not log in and guest is turned off also this program let me boot up in safe mode and now is stuck in that. I made a clone for my Mac already but am confuse on one part. Thanks in advance. Bought my first Intel iMac from a friend… used This has always been my method, from System 6 thru OSX It has always worked like a charm… until now.
Tried Safe Mode, same result. Disk Utility reports the drive is OK.
How to Boot Snow Leopard from a DVD-ROM
Why is this method not working? I have iMac and created usb as well as dvd both are bootable.. I reformatted machd drive, it shows only the recovery options.. I want to clean install using usb or dvd.. How to get dvd or usb options when they are not listed? Apple made it easy so all you need to know … […]. You will be presented with various disk icons.
Now click the Restart button to start up your Mac using the chosen volume. Should you run into problems whilst attempting to boot your Mac from an external storage device, consult our FAQ below to help troubleshoot any start up issues you may be plagued with. Depending on its model and power requirements, it may be necessary to connect your USB storage device to an external power supply.
Make sure your external storage is turned on and connected to your Mac. In the worst case scenario, you might need to reinstall OS X on the external volume. Using an external hub to connect several USB storage devices may cause your Mac to fail to recognize them at boot time. Try connecting the USB drive to another port on the hub.
Mini-Tutorial: Inability to boot from Mac OS X CD/DVDs; solving - CNET
Both wired and wireless Apple Keyboard, and some other keyboards with built-in USB ports, may not supply enough power to some external USB hard drives. Any of those is your cue to try Step 4. It displays icons for any bootable discs that it sees and allows you to select one including the installation DVD. This technique is quite useful if your usual boot disk is damaged or having an identity crisis during startup. Call the tech-support hotline: The service representatives there may be able to suggest something else that you can try.