Installing Big Sur on an external SSD
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I have tried copying the User folder, the indivdual 'Michael Corgan" sub-folder and for luck, some applications, from my existing Big Sur partition on my iMac to the new drive, but none are accepted. Users and Groups in System Preferences shows me as Admin, and I can boot into the El Capitan partition on the Mac with no problem. How do I add the necessary User details to allow me to use the SSD?
During the installation of Big Sur (downloaded from the Apple Store) there was no point at which adding a User came up. Have I missed it somehow?