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Bootcamp Installation Issue

I once again bring up this thread because I still haven't fixed the issue. Whenever I try to format the disk in Bootcamp, it says "Your bootable USB drive could not be created. Error in formatting disk." Let me know if you need information, I'll be happy to provide it, and thankful if you help me fix this issue.

iMac 27″, macOS 10.15

Posted on May 3, 2021 6:51 AM

Reply
7 replies

May 3, 2021 6:29 PM in response to nermina193

nermina193 wrote:

How do I know if I have a bad Fusion Drive?
How does having a split Fusion Drive effect how Bootcamp is installed?

From your other post...


dev/disk0 (internal, physical):

#: TYPE NAME SIZE IDENTIFIER

0: GUID_partition_scheme *121.3 GB disk0

1: EFI EFI 209.7 MB disk0s1

2: Microsoft Basic Data BOOTCAMP 121.1 GB disk0s2


/dev/disk1 (internal, physical):

#: TYPE NAME SIZE IDENTIFIER

0: GUID_partition_scheme *2.0 TB disk1

1: EFI EFI 209.7 MB disk1s1

2: Apple_APFS Container disk2 2.0 TB disk1s2


The highlighted part is invalid. The 121GB partition was formatted as BOOTCAMP (accidentally or intentionally). BCA will not work when Install Option is enabled, given this configuration. If APFS Fusion is in use, the secondary disk is partitioned for Windows.

I just want to understand the concepts better. Thanks!

Using the following steps, you can correct the issue.

Bootcamp Installation Issue

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