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whats the procedure to use to install High Sierra on an external SSD for a mid 2011 27" IMAC that's starting to fail?
Thanks,
Ron
[Re-Titled by Moderator]
iMac 27″, macOS 10.13
Where are you having problems with that?
Have you run CCC5 yet?
Where are you having problems with that?
Have you run CCC5 yet?
I just tried Carbon Copy Cloner it won't work on my Mac cause I'm to old. "You have macOS 10.13.6. The application requires macOS 10.15 or later."
How else can I clone it?
Thanks.
Try SuperDuper! (free full clones)
I used SuperDuper to clone my Monterey system onto an external SSD and booted my Mac from it.
Thanks to all that helped me thus far. Now all I need is to put the clone on an external SSD any easy instructions ?
yes, I got CCC5 to run. made a clone. Now how do I makes the IMac to boot from it?
Hold Option key on power up to see boot choices.
Thank you BDAqua for your help with this cloning. It took on;y 29 hours to complete (750 gigs). Thanks to all who have helped.
Ron
I forgot one more thing. Can I set something to make this IMac boot from the external hard drive automatically? so I don't have to hold down the "option" key
Thanks to all who helped here. I got it to boot at startup.
Great to hear, take care my friend! :)
What's the procedure to install macOS High Sierra on an external SSD?
