Cloning to External SSD for use on another newer mac

[willdem]

Hello,
I currently have a Macbook retina (2015) running Catalina 10.15.3.
I also have access to a M1 Imac running Monterary 12.5.

I am Planning on cloning my Macbook to a 2TB SSD so i can then run the SSD through the Imac too. My question is will the difference in OS/chips be a problem at all?
Also would there be an option to update the OS once i have the cloned SSD attached to the Imac?

Many Thanks,
Will.

 

[Boyd01]

You will be able to access the files on the SSD but you will not be able to boot the iMac from it. M1 Macs cannot boot Catalina.

 

[willdem]

Ahh thank you.
I really need to buy a new M1 Macbook, but cant right now. In the mean time i think i will have to use my macbook with the Imac as the extra (main) screen.

Many thanks.