

I REALLY don't want my drives/data to be corrupted, as I have numerous drives connected through numerous USB ports (2 and 3) and sometimes firewire. hardware-hungry extensions - from external graphics cards to 4K monitors. Does anyone have any ideas/have the same problem/and more importantly, solutions? The Mac mini is barely bigger than a book, and yet its performance does not have. : Apple Mac Mini with Apple M1 Chip (16GB RAM, 256GB SSD Storage) - (2020) - Z12N000G0 : Electronics Computers Electronics :: Desktops :: Mac Mini :: Apple Mac Mini 2020 3.2GHz M1 16GB. Select APFS/HFS+ Format and GUID Partition Scheme for this drive. Select the external drive from the sidebar and click on the Erase tab. Press Command + Space and search for Disk Utility. Connect the unmountable Samsung portable SSD to your M1 Mac. I can't see this being ANYTHING other than a software problem. Second: Reformat the external SSD on your M1 Mac. By either selecting it from the menu, or pressing the power button for a second or two until it goes to sleep. Only I put it to sleep, and this happens. This happens (displaying "Disk not ejected properly") as it's supposed to if you unplug an external drive or flashdrive without ejecting it in the software first.īut the problem is that it ALSO happens if I put the machine to sleep and then wake it.ġ) This has happened with a wide variety of hard drive brands/capacities/types/formats.Ģ) External drives connected in toasters/enclosures.ģ) External drives in permanent enclosures.ĥ) The machine is set to never go to sleep, so it is not an issue with that. I've read that it started happening to people from High Sierra upwards, but the last OS I ran before Mojave was El Capitan 10.11.x.


I haven't had this problem EVER before I started running Mojave. "Disk not ejected properly" I'm running 10.14.6 Mojave on a 2009 Mac Pro with dual Xeon x5690 processors (6 cores & 3.46GHz each) and 48GB RAM.
