Migrating iMac boot drive to a larger SSD
Hi
I have a 2017 iMac running 13.7.2 (the latest OS it can run). It currently boots from/everything is stored on a single external SSD. The internal Fusion Drive no longer seems to work properly (and is too small).
I have two Time Machine backups of the external SSD on two other SSDs.
I am now running out of space on the external SSD and so I would like to move everything to a larger SSD drive/use that new larger drive to boot from/store everything on.
Is this something I can use migration assistant to do? If so, how do I do it please? I have been looking at the Apple support pages but they seem to (understandably) focus on moving from an old Mac to a new Mac.
[Re-Titled by Moderator]
iMac (2017 – 2020)