Unable to use external ssd on Catalina
Hi friends. Apple changed something and broke my Mac. I use a standalone external ssd as start up disk and made my old mac 2013 fast.
No I’m trying to reinstall Catalina 10.15.7 but throws an error ‘unable to update’ and ‘you need 10.15’
Anyone had this problem?
I am basically unable to mount the ssd as a startup disk and need help
u/Chrisgadgetlover — 8 days ago