- Joined
- May 29, 2013
- Messages
- 26
- Motherboard
- ASRock Z97M-ITX/ac
- CPU
- i5 4590
- Graphics
- HD4600 (iGPU)
I wanted to Dualboot Windows 8.1 and Yosemite on my ASUS Maximus VI Hero.
I patched the board with the UEFIPatcher and prepared a USB Stick with Clover and Yosemite.
All the settings where ok, AHCI enabled, CFG Lock disabled, CSM disabled, Secureboot set to Other OS.
I already had Windows installed and resized the partition so I could fit the Yosemite installation on the free space, but when I started the Disk Utility from the Yosemite installer and wanted to format the partition to Mac OS Extended (Journaled), but when I pressed apply, the Disk Utility would hang at "Preparing to partition disk". Since it was a UEFI installation of Windows, I can confirm that the drive was pure GPT, no Hybrid MBR or anything like that.
Then I thought, ok then I'll reinstall Windows, so I used the Disk Utility to create two partitions with Mac OS Extended (Journaled) and the GUID Partition Table, one for Yosemite and one for Windows.
Yosemite would install fine, but when I booted the Windows Installer and deleted the second partition with it and wanted to install Windows to the free space, it would exit with an error that it couldn't create a system partition or find an existing one, even when creating these partitions manually with the "New" button, the same message appeared.
I also tried to format the drive with Windows first and then tried to make a partition for Yosemite with the Disk Utility, but then again, it would just hang on "Preparing to partition disk".
I also tried to partition the disk as a pure GPT drive with GParted, which also didn't work.
I can only install Windows OR Yosemite on that single drive... I also couldn't find anyone with that problem on the internet.
It seems like Windows partitions the drive in a way, disk utility can't handle and the disk utility does the same thing other way around, but it IS GPT, I didn't create a FAT partition or anything like that, which would cause a Hybrid MBR, it is PURE GPT, so why the hell does this stupid Disk Utility hang??
I patched the board with the UEFIPatcher and prepared a USB Stick with Clover and Yosemite.
All the settings where ok, AHCI enabled, CFG Lock disabled, CSM disabled, Secureboot set to Other OS.
I already had Windows installed and resized the partition so I could fit the Yosemite installation on the free space, but when I started the Disk Utility from the Yosemite installer and wanted to format the partition to Mac OS Extended (Journaled), but when I pressed apply, the Disk Utility would hang at "Preparing to partition disk". Since it was a UEFI installation of Windows, I can confirm that the drive was pure GPT, no Hybrid MBR or anything like that.
Then I thought, ok then I'll reinstall Windows, so I used the Disk Utility to create two partitions with Mac OS Extended (Journaled) and the GUID Partition Table, one for Yosemite and one for Windows.
Yosemite would install fine, but when I booted the Windows Installer and deleted the second partition with it and wanted to install Windows to the free space, it would exit with an error that it couldn't create a system partition or find an existing one, even when creating these partitions manually with the "New" button, the same message appeared.
I also tried to format the drive with Windows first and then tried to make a partition for Yosemite with the Disk Utility, but then again, it would just hang on "Preparing to partition disk".
I also tried to partition the disk as a pure GPT drive with GParted, which also didn't work.
I can only install Windows OR Yosemite on that single drive... I also couldn't find anyone with that problem on the internet.
It seems like Windows partitions the drive in a way, disk utility can't handle and the disk utility does the same thing other way around, but it IS GPT, I didn't create a FAT partition or anything like that, which would cause a Hybrid MBR, it is PURE GPT, so why the hell does this stupid Disk Utility hang??