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SandroV

macrumors newbie
Original poster
Oct 29, 2020
4
0
Hi guys,

this is probably a fringe scenario, but it's frustrating me: I'm on a late 27" iMac 5K, 3 TB HDD. I got myself a Samsung T5 yesterday to boot macOS Big Sur from it. Obviously night and day difference in terms of performance and it worked flawlessly.

Now, what doesn't seem to be compatible with this scenario is Bootcamp: I can not for the life of me get this to work.

Desired scenario:

External T5
- Partition 1: macOS Big Sur
- Partition 2: Windows 10

When starting Boot Camp and trying to create a bootable USB drive (my iMac doesn't support USB-free install), I can only see my T5 as the "bootable USB" option, which obviously isn't desired:

As you can see on this shot, two USB thumb drives are plugged in - one 16, one 32 GB. I can format them however I want: FAT, exFS, HFS, AFS etc. - they are not recognized by BootCamp. They work flawlessly on another MacBook 15" 2013. Somehow I feel BootCamp is preventing this scenario.

Any help much appreciated guys :) Btw. running latest Big Sur Dev Beta that was released yesterday.

Cheers
 

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