I have a 21.5" Mid-2010 iMac i3 in which I am trying to install Windows 8 on. When I went into bootcamp, I received the ever so common error of:
![[IMG]]()
When I went to the newly designed disk utility, it told me I had one partition. Of course, I knew this couldn't be true, so I went into terminal and typed "diskutil list" and got:
/dev/disk0 (internal, physical):
#: TYPE NAME SIZE IDENTIFIER
0: GUID_partition_scheme *500.1 GB disk0
1: EFI EFI 209.7 MB...
Bootcamp Failing with Error: “The startup disk cannot be partitioned to a single partition."
![[IMG]](http://i.stack.imgur.com/nIMCY.png)
When I went to the newly designed disk utility, it told me I had one partition. Of course, I knew this couldn't be true, so I went into terminal and typed "diskutil list" and got:
/dev/disk0 (internal, physical):
#: TYPE NAME SIZE IDENTIFIER
0: GUID_partition_scheme *500.1 GB disk0
1: EFI EFI 209.7 MB...
Bootcamp Failing with Error: “The startup disk cannot be partitioned to a single partition."