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Dual boot Yosemite (Clover) + Windows 10 in Separate SSD's

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asheinfeld

asheinfeld

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Hi there,
I was able to install Yosemite using Clover and it's booting perfectly on my machine, after that i created the install USB of windows 10 and installed it in a different SSD.

I can only get to Windows 10 by selecting the SSD as the primary boot device but not through Clover, there are 2 options to select windows but as son as i click on them it all hangs in a black screen and nothing happens.

Any ideas what i might be missing?
 
asheinfeld said:
Hi there,
I was able to install Yosemite using Clover and it's booting perfectly on my machine, after that i created the install USB of windows 10 and installed it in a different SSD.

I can only get to Windows 10 by selecting the SSD as the primary boot device but not through Clover, there are 2 options to select windows but as son as i click on them it all hangs in a black screen and nothing happens.

Any ideas what i might be missing?
Click to expand...
boot OS X, open terminal and run diskutil list
post pic of terminal window
 
Hello, here is the screenshot.

Screen Shot 2015-10-05 at 9.16.35 PM.png

Thanks for your help!
 
Hi, thanks for your reply.

I'm trying to install Windows 10 from scratch using a new USB with MRB partitioning but i can't seem to get the computer to boot with the usb stick, it goes straight to windows 10 :(

I am using Rufus and have tried formatting the Drive using Both GPT Partition Scheme and MBR partition Scheme and in both cases when i boot with the usb drive it says that i should boot with a vaild drive. Any ideas why this is happening?

For more context, i disconnected the SSD that has OSX installed and Clover. and i just left the one that has Windows 10 as Legacy mode.

Any guidance would be greatly appreciated!

Cheers
 
asheinfeld said:
Hi, thanks for your reply.

I'm trying to install Windows 10 from scratch using a new USB with MRB partitioning but i can't seem to get the computer to boot with the usb stick, it goes straight to windows 10 :(

I am using Rufus and have tried formatting the Drive using Both GPT Partition Scheme and MBR partition Scheme and in both cases when i boot with the usb drive it says that i should boot with a vaild drive. Any ideas why this is happening?

For more context, i disconnected the SSD that has OSX installed and Clover. and i just left the one that has Windows 10 as Legacy mode.

Any guidance would be greatly appreciated!

Cheers
Click to expand...
For best results use the Windows Download Tool and a Windows machine to create your USB installer.
Also, format your Windows drive as if you were going to install OS X on it. This creates the EFI partition at the beginning of the drive and converts it to GPT partition scheme. When in Windows, just select the main partition, click on advanced, click on format, click on continue and install Windows
 
Just to be sure (Since i won't have access to another PC after i have formatted the drive)

- I will have to use the windows download tool and create a USB installer regularly
- Then i can come to OSX and format the SSD containing windows 10 to Max OSX (Journaled) with GPT Partitioning
- Turn off the computer and disconnect the mac os drive (just in case)
- Reboot machine with the USB installer connected and just install windows on the drive.
- Connect the OSX SSD Drive and hopefully Clover will let me Boot to both Mac and Win.

Is that right?
 
asheinfeld said:
Just to be sure (Since i won't have access to another PC after i have formatted the drive)

- I will have to use the windows download tool and create a USB installer regularly
- Then i can come to OSX and format the SSD containing windows 10 to Max OSX (Journaled) with GPT Partitioning
- Turn off the computer and disconnect the mac os drive (just in case)
- Reboot machine with the USB installer connected and just install windows on the drive.
- Connect the OSX SSD Drive and hopefully Clover will let me Boot to both Mac and Win.

Is that right?
Click to expand...

Basically, yes with the proviso that you hit your hotkey that lets you select a boot device and select the UEFI version of the USB drive with the Windows 10 installation files on it.
This forces Windows 10 to install UEFI. Note that the drive must already be formatted GPT or the installer will tell you Windows cannot be installed. So either format the Windows drive with OS X disk utility before booting the Windows installer, or hit shift+F10 to get an elevated command window and use diskpart to clean, convert to gpt and format the drive. Your choice.
 
This is how i have the Win 10 USB drive set up right now, this is exactly what you where saying right? :) Just want to be 100% sure before moving forward.

Screen Shot 2015-10-07 at 2.10.27 PM.png

Screen Shot 2015-10-07 at 2.11.24 PM.png

Cheers!
 
asheinfeld said:
This is how i have the Win 10 USB drive set up right now, this is exactly what you where saying right? :) Just want to be 100% sure before moving forward.

View attachment 154822

View attachment 154823

Cheers!
Click to expand...

Will not work that way - formatting like that forces Win10 to install Legacy mode on hybrid GPT/MBR.
Select the format type to be OS X Extended (Journaled) and select GUID in the options (button under the partition page)

When you boot Windows installer, you then click on the OS X formatted partition to select it, click on advanced button, then format button, then continue button and install button, click on OK when it asks to create partitions for installations.
 
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