Back up and restore OS from NVMe?
Hello all, I’m a Mac newbie and non-native English speaker.
I have a newbie question that can’t find anywhere. I have a 2017 27’ 5k with 2TB fusion drive iMac that I want to upgrade the internal blade SSD(NVMe), but I don’t know if I need to back up the OS before I change the NVme or I can just plug-in the new SSD and install a new OS through wifi. Also, I know that 2tb fusion drives come with a 128gb internal drive and what will happen or I can change only the SSD and leave the 2tb HDD?
What are the exact procedures before I upgrade NVMe blade drives. I’ve seen the hardware tutorials like this one( iMac Intel 27" Retina 5K Display Blade SSD Replacement ) but don’t see anyone saying if I have to back up the OS.
Thank you all for reading
Is this a good question?