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Patch for macOS Mojave fixes Boot Camp issue on Fusion Drive Macs

Apple has issued a patch for macOS Mojave 10.14.5 that fixes a problem with Boot Camp, one that prevents users from using the tool to produce a new partition on some Macs equipped with a Fusion Drive.

Added to Apple's support pages on Thursday, the brief document offers a download link for the "macOS Mojave 10.14.5 Boot Camp Update. The download itself is equally small, weighing in at just 1.9 megabytes in size.

Apple describes the download as addressing "an issue which prevents creation of a new Boot Camp partition on iMac and Mac mini with Fusion Drive." It is unclear if owners of non-Fusion Drive models encountered similar issues with Boot Camp.

It appears that the patch can be downloaded by any Mac users running macOS Mojave 10.14.5 capable of mounting a Fusion Drive, but considering the description, it is likely to only be of use to certain iMac and Mac mini owners.

Boot Camp is Apple's function that enables a Mac to have a partition set up for running Windows outside of macOS, without needing to use a virtual machine within macOS itself. The feature enables Windows users to continue using their Windows-only apps on their Mac, instead of relying on a separate dedicated Windows PC.

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11 Comments

dualie 17 Years · 334 comments

I have the newest 27" iMac with a Fusion Drive and haven't had any problems with installing or partitioning for Boot Camp. It worked perfectly.

1 Like · 0 Dislikes
mretondo 18 Years · 94 comments

I wonder if this fixes the problem when you have two SSD internal drives and want to use APFS. I have a iMac 27" with a fusion drive. My spinning disk died and I replaced it with an SSD. Now I have the 128GB SSD that came with my iMac and a 1TB SSD from OWC. The macOS would not let you add a Boot Camp partition with this configuration. I figured out how to manually do it but it was a real pain. What I don't like about the workaround is it puts the Windows portion on the 128GB stick which is much faster than the SATA SSD. Normally it puts the MacOS onto the 128GB stick and the Mac runs much faster. I might try starting over with this fix and see if this is the problem it fixed.

1 Like · 0 Dislikes
MacPro 19 Years · 19862 comments

dualie said:
I have the newest 27" iMac with a Fusion Drive and haven't had any problems with installing or partitioning for Boot Camp. It worked perfectly.

Not having an iMac I don't know the answer to this ... now SSDs are so much less expensive can you rip out the Fusion Drive and replace it with an SSD?

1 Like · 0 Dislikes
lkrupp 20 Years · 10521 comments

MacPro said:
dualie said:
I have the newest 27" iMac with a Fusion Drive and haven't had any problems with installing or partitioning for Boot Camp. It worked perfectly.
Not having an iMac I don't know the answer to this ... now SSDs are so much less expensive can you rip out the Fusion Drive and replace it with an SSD?

Not for the common user since the iMac screen is glued on now instead of using magnets. Videos showing the process are a little scary to watch.

1 Like · 0 Dislikes
Mike Wuerthele 9 Years · 6984 comments

MacPro said:
dualie said:
I have the newest 27" iMac with a Fusion Drive and haven't had any problems with installing or partitioning for Boot Camp. It worked perfectly.
Not having an iMac I don't know the answer to this ... now SSDs are so much less expensive can you rip out the Fusion Drive and replace it with an SSD?

Going Thunderbolt external would be faster than the Fusion Drive. Hell, going USB-3.1 type C is too.