Trying Big Sur from external boot drive question

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James C. Murray Senior Member • Posts: 2,083
Trying Big Sur from external boot drive question

If I clone my internal drive, (Carbon Copy Cloner), to an external SSD, boot from it and update it to Big Sur am I likely to have any problems other than perhaps reduced speed?

I would like to try this to see where I may have problems with apps, Capture One 20 in particular. The idea of course is being able to return to my internal Catalina OS if things do not work out.

Capture One are advising to hold off on Big Sur until they can say there are no problems and I am not about to ignore their advice.

Thanks.

Edited to add that I am using a late 2015 iMac with Catalina at the moment.

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