The only exception is with target disk mode , which requires a different sequence to use.
How to select a different startup disk
One thing to consider about this approach is that the setting choice stays in place until it has been changed again through the Startup Disk Manager. This means that if the chosen startup volume has been disconnected from the Mac, on the next reboot a blinking question mark may appear, because the set startup disk is no longer visible. If that blinking question mark is persistent, that can be easily remedied by holding down the OPTION key, selecting the normal Macintosh HD boot volume at startup as outlined above, and then going back to Startup Disk in System Preferences to choose the proper OS X startup volume again.
Enjoy this tip? Subscribe to the OSXDaily newsletter to get more of our great Apple tips, tricks, and important news delivered to your inbox! Enter your email address below:. Can you recommend an external hard drive that will be able to reboot the OSX. I am considering getting Carbon Copy and they insisted that I get an external drive that is rebootable. I am trying to find one that actually says it on the tin, which is proving quite difficult. Any advice would be greatly appreciated. Kevin, As long as the drive is connected to the computer, the backup using Carbon Copy should work.
If you find an external hard drive and have any questions about it, try asking their support. Glad to help and please reply with any questions , Dimitri. I made a mistake. I pulled my working hard drive that has two partitions one lion one snow leopard Out of my MacBook plugged it into another macbook to just test the computer itself.
It booted fine in the other computer. Either partition. I did do a new image of each partition to an external drive. What do you recommend? I do not want to loose all the info on the drive. I will be very happy and less broke if I can just yank out the drive from my old mbp, put it in a case, plug it in via USB, boot from it, and run my older software. I had an issue with my Mac Pro recently.
Was trying to do a clean install of Yosemite but got a message somewhere along the lines of this is not a supported install of the operating system. Thankfully my iMac had Yosemite installed on it. Went to the App Store and was able to download Yosemite which was installed on the external drive. So far everything is working, not sure what happened but now I am going to have a main boot drive along side an external boot drive. Even a Mac can have a bad hair day! I installed a new gb hard drive today and reinstalling mac OS X from an external drive.
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The first time I got a circle with a diagonal line through it on the screen, after I saw the apple, and the spinner was spinning below the circle. What is the solution to get past this? Take your HD out and install it into a inclosure box. Then connect it to your usb connector on your made and restart computer. If your computer starts and boots. Then its your HD wire. Need to replace it. I was getting a folder with a question mark so replaced my hd with a ssd hd.
Any suggestions? Can i use an external hard drive to boot up my Macbook daily? Does switching between the internal macintohs and the external hard drive back and forth faily damage my Macbook in any ways be it software or hardware? Name required. Also read: Besides, the user needs to have a basic idea of what burning of ISO image file means exactly. Well, if you are not fully aware, then you should know that ISO image files are fragmented files or achieve files of an optical disk which are compressed in the form of an Image called ISO image.
It is specifically characterized by the extension it uses, that is. Thus if you want to create a Windows 10 bootable USB on mac then you have to burn the ISO image files onto the disk by segregating a partitioned zone within the disk to avail the compressed files and make them executable. Keep reading to know them in full-length. Instead of trying out with an external agent, it would be better to make use of the in-built application of Mac, called Disk Utility to burn the ISO image files on disk to make them bootable.
It comes pre-installed with the Mac OS so you don't have to worry about its downloading and installation. Step 2.
Boot your Mac from CD, DVD, external drive, or USB flash drive
Locate the app "Disk Utility" from the apps available on the "Utilities" folder. Step 3. Now pull down the fileStep 4.
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Browse to the ISO image file that you want to get burnt into your specific drive and click "Ok". Step 4.
How to boot from an external dvd/cd becau… - Apple Community
Step 5. Now click "Burn" to burn the ISO image files into the disk and wait until the burning is completed. WizISO has been incessantly serving countless users across the internet with its exceptional service and its advanced features which makes it different from other ISO burning tools.
Step 1. Get the program file downloaded on your Mac OS X.
Launch it admin privileges so that you can exercise all the admin rights. It may ask you to type the Administrator password. Firstly click the " Burn " option to open main interface and browse the ISO image source file from the source location.