Installing Windows 10 (64-Bit)- BootCamp

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8 points

Installing Windows 10 (64-Bit)- BootCamp

Hi all!

Again I'm having an issue. This time I cannot install Windows 10 (64-bit) with BootCamp. I was able to do this no problem couple of months ago and now all of a sudden I am not.

1. BootCamp

2. I hit continue and I get this screen, which I don't remember seeing last time so I don't know if this is normal.

3. I click Ok then have to select 'Go Back' to get to this screen.

4. Then I select continue...

5. Continue...

6. Continue & at which point... computer says "No"

Any thoughts?

Cheers folks!

iMac with Retina 5K display, macOS High Sierra (10.13.2), null

Posted on Dec 29, 2017 1:50 AM

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Answer 1

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osx_convert Author

Level 1

8 points

Dec 29, 2017 12:44 PM in response to Loner T

Ok I found out the reason. So obvious now.

This is an iMac Retina 5K, 27-inch, Late 2015 and It comes standard with a 2.12TB fusion drive. I thought id be clever and split the drive so I have a 128GB ssd as boot for super fastness and keep the 2TB as storage. well apparently when split like this it can't install any windows version.

I found this out because I just tried installing on my MacBook Air and, Voila!!

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Answer 2

Loner T

Level 9

59,513 points

Dec 29, 2017 2:36 PM in response to osx_convert

Excellent. There is way to install Windows in the the SSD, by manually splitting the disk, using diskutil cs resizeStack and choosing the specific pvUUID which is the SSD, instead of the BCA default which is the pvUUID of the HDD.

Also, see BootCamp on SDD on system with Fusion Drive .

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Answer 3

Loner T

Level 9

59,513 points

Dec 29, 2017 7:07 PM in response to osx_convert

To clarify,

you want to continue to use the Fusion drive capability (SSD+HDD), and,
you want to install Windows in a standard configuration on the HDD, and,
you want an additional partition to store files on the HDD.

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Answer 4

Loner T

Level 9

59,513 points

Dec 30, 2017 5:14 AM in response to osx_convert

You are not supposed to copy the ISO file itself to the USB, but the contents of the ISO after it has been mounted. The largest file if you mount the ISO, should be install.wim which is less than 4GB. This example is from a 1607 Anniversary Update ISO. 1709 FC Update should be very similar.

df -h

Filesystem Size Used Avail Capacity iused ifree %iused Mounted on

/dev/disk0s2 354Gi 336Gi 18Gi 96% 88234220 4600356 95% /

devfs 329Ki 329Ki 0Bi 100% 1141 0 100% /dev

map -hosts 0Bi 0Bi 0Bi 100% 0 0 100% /net

map auto_home 0Bi 0Bi 0Bi 100% 0 0 100% /home

/dev/disk0s4 122Gi 75Gi 47Gi 62% 225029 48976467 0% /Volumes/BOOTCAMP

/dev/disk1 4.1Gi 4.1Gi 0Bi 100% 18446744073707414141 2138557 1704874683337099264% /Volumes/CCSA_X64FRE_EN-US_DV5

cd /Volumes/CCSA_X64FRE_EN-US_DV5/sources

pwd

/Volumes/CCSA_X64FRE_EN-US_DV5/sources

ls -lgh install.wim

-r-xr-xr-x 1 staff 3.6G Jul 16 2016 install.wim

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Answer 5

Loner T

Level 9

59,513 points

Dec 31, 2017 7:12 AM in response to osx_convert

The Terminal commands used are

df -h (show the details of available 'mounted' file systems). The highlighted entry is the mounted ISO.

cd (Change directory to the location of the .wim - Windows Image)

ls -lgh install.wim (show the size of the .wim file).

I have also updated the document.

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Answer 6

Loner T

Level 9

59,513 points

Dec 29, 2017 3:06 PM in response to osx_convert

See the detailed steps in the linked discussion at Re: BootCamp on SDD on system with Fusion Drive .

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Answer 7

Loner T

Level 9

59,513 points

Dec 29, 2017 6:54 AM in response to osx_convert

What is the 2TB disk? Can you confirm the year/model of your Mac and the macOS version?

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Answer 8

osx_convert Author

Level 1

8 points

Dec 29, 2017 2:41 PM in response to Loner T

oh great!

I was actually wanting to install to the 2TB drive instead. so after splitting the fusion, leave the 128GB ssd for boot and install windows the 2TB HDD

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Answer 9

Loner T

Level 9

59,513 points

Dec 29, 2017 2:45 PM in response to osx_convert

If you have the Fusion drive with SSD at index 0 and HDD at index 1, you can use almost the entire HDD (~1.8TB on a 2TB disk) for Windows.

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Answer 10

osx_convert Author

Level 1

8 points

Dec 29, 2017 2:49 PM in response to Loner T

Cool, is there any way to make an partition on the HDD? Because I want to use the HDD mainly for storage. I only need 64GB or 128GB for Windows.

Cheers

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Answer 11

osx_convert Author

Level 1

8 points

Dec 29, 2017 5:53 PM in response to Loner T

ok thanks but just to clarify I want to split the fusion drive and install windows on the HDD not the SSD. I've had a quick read but I'm not sure this will help me or ma I missing something

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Answer 12

osx_convert Author

Level 1

8 points

Dec 29, 2017 10:32 PM in response to Loner T

Your discussion: Build your own Windows 10 Bootcamp USB Installer doesn't work. MS-DOS (FAT) only allows files no larger than 4GB to be copied. the windows 10 iso content is 3.8GB in size

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Answer 13

osx_convert Author

Level 1

8 points

Dec 31, 2017 1:22 AM in response to Loner T

thank you so much for these terminal commands but I'm unable to make sense of the layout you've entered it! 😁

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