Dowloading Big Sur to an external disk
Ok, In my flat I use an old 2008 iMac (working flawlessly) with a superfast internet connection. However, out in the countryside I have a one year old iMac which will be able to run Big Sur once installed, but alas, with a superslow internet connection where it will be difficult to download something as big as Big Sur. Is there a way I can download this to my old Mac, for example onto an external disk which I then can bring out to the countryside and install from that?
Any suggestions out there?
iMac, 10.11