a brody wrote:
Trying to partition with the Boot Camp Assistant a 64 GB partition to run Windows 10, where 10.15.6 is on an early 2015 MacBook Pro. The partition I am splitting has almost nothing on it, and is about 128 GB.
I am not about to load photos or anything large on it.
Is your entire disk 128GB, or is it a partition on a larger disk? BC Assistant will not 'split' any partitions. It can work with HFS+, CS/APFS Containers or CS/APFS Fusion drives. On single disk Macs, you should not have any non-macOS 'partitions'.
What's the minimum size partition you would try to put Windows 10 on?
- 40GB for W10
- 10GB for OSXRESERVED (or an external USB2 Flash drive formatted as exFAT)
Can the SSD be partitioned for other systems with disk utility, or can there only be one primary partition?
Only one APFS Container or CS Container, or on pre-High Sierra systems, a EFI/macOS/Recovery HD is allowed.
I have two other partitions that I plan to use to install 10.14 and 10.13 on them and a total 256 GB built-in SSD.
Do not create more than one installation of macOS on the disk which will store Windows. On APFS Containers, you can create additional volumes for newer macOS versions (High Sierra and later), but do not create additional partitions outside the APS container. See Installing macOS on a separate APFS volume - Apple Support for reference.
Below is where the assistant gets stuck loading Windows 10 64 bit, and sits there for 7 hours without budging , after which time I simply gave up trying and zapped the partition it created with Disk Utility.
You may have APFS corruption. Run
sudo fsck_apfs -n -l /dev/rdisk1
from macOS Terminal, and post the output.
