[solved] can't partition disk

[Dazzlepoint]

I finally managed to boot the installer. but i can't erase the partition for mac osx.
Windows 10 is already installed on the disk. And the drive uses the GUID Partition Table.

I tried to make a HFS+ partition with Gparted but Mac Os can't install on this format.


When i tried to erase the partition with disk utility i get this error:

mediakit reports not enough space on device for requested operation
Can you people please help me ?

 

[RehabMan]

can't partition disk

I finally managed to boot the installer. but i can't erase the partition for mac osx.
Windows 10 is already installed on the disk. And the drive uses the GUID Partition Table.

I tried to make a HFS+ partition with Gparted but Mac Os can't install on this format.


When i tried to erase the partition with disk utility i get this error:

mediakit reports not enough space on device for requested operation
Can you people please help me ?

OS X is not well behaved with disks partitioned by other than OS X Disk Utility, but there are things you can check/do.

See this thread: http://www.tonymacx86.com/multi-booting/133940-mavericks-windows-8-same-drive-without-erasing.html

 

[Dazzlepoint]

can't partition disk

I resized the EFI partition to 200 Mb and windows could still boot.
I tried to erase the partition .. it know works like a charm.

I followed your guide Thanks

http://www.tonymacx86.com/multi-boo...-same-drive-without-erasing-2.html#post823869

 

[RehabMan]

Marked [solved].