"We couldn't create a new partition or locate an existing one. Form more information, see setup log files"

Question

Ok so back in August 2014 I succuesfully used bootcamp to install Windows 10 Tech preview. It worked great until March of this year when Windows issued an update (Which I had no control over).  After this update the R9 4GB graphics card driver stopped working.  I contacted Apple/AMD/Microsoft but was unable to fix this problem.
So,  I uninstalled Windows 10 through bootcamp and restored the drive to a single partition. I purchased windows 8.1 and downloaded Windows Enterprise edition (as this comes as an ISO file) and started the process again with Bootcamp. Everything works great until I get to the installation of windows.
I did the same as last time (formatted the Bootcamp partition) and tried to continue the installation. I now get the following message:
I have tried a complete reinstall of the system twice (back to factory settings) but still the same issue.  I have also tried using Windows 10 Tech preview but still the same issue. (I only have my remote drive with the ISO file connected to the mac and have tried with a USB stick)
Any ideas would be much appreciated! Thanks

Answer 1

Thank you for your prompt response.  Please see below:
Last login: Thu Apr 30 09:15:48 on console
Jeremys-iMac:~ jeremygaster$ diskutil list
/dev/disk0
   #:                       TYPE NAME                    SIZE       IDENTIFIER
   0:      GUID_partition_scheme                        *121.3 GB   disk0
   1:                        EFI EFI                     209.7 MB   disk0s1
   2:          Apple_CoreStorage                         121.0 GB   disk0s2
   3:                 Apple_Boot Boot OS X               134.2 MB   disk0s3
/dev/disk1
   #:                       TYPE NAME                    SIZE       IDENTIFIER
   0:      GUID_partition_scheme                        *1.0 TB     disk1
   1:                        EFI EFI                     209.7 MB   disk1s1
   2:          Apple_CoreStorage                         999.3 GB   disk1s2
   3:                 Apple_Boot Recovery HD             650.0 MB   disk1s3
/dev/disk2
   #:                       TYPE NAME                    SIZE       IDENTIFIER
   0:                  Apple_HFS Macintosh HD           *1.1 TB     disk2
                                 Logical Volume on disk0s2, disk1s2
                                 E693210D-5893-4CC0-B3FF-18B5A92179CB
                                 Unencrypted Fusion Drive
Jeremys-iMac:~ jeremygaster$ diskutil cs list
CoreStorage logical volume groups (1 found)
|
+-- Logical Volume Group 5BEBA89D-FBF8-45AF-99CF-DFB82BC6B9E8
    =========================================================
    Name:         Internal Drive
    Status:       Online
    Size:         1120333979648 B (1.1 TB)
    Free Space:   114688 B (114.7 KB)
    |
    +-< Physical Volume 2EF54FBF-26BB-4D56-A84E-947205800865
    |   ----------------------------------------------------
    |   Index:    0
    |   Disk:     disk0s2
    |   Status:   Online
    |   Size:     120988852224 B (121.0 GB)
    |
    +-< Physical Volume B66237C5-F9ED-454C-9AFB-90553B0D0E0A
    |   ----------------------------------------------------
    |   Index:    1
    |   Disk:     disk1s2
    |   Status:   Online
    |   Size:     999345127424 B (999.3 GB)
    |
    +-> Logical Volume Family A91C5378-D285-434D-B33B-5F1E0CC64C62
        Encryption Status:       Unlocked
        Encryption Type:         None
        Conversion Status:       NoConversion
        Conversion Direction:    -none-
        Has Encrypted Extents:   No
        Fully Secure:            No
        Passphrase Required:     No
        |
        +-> Logical Volume E693210D-5893-4CC0-B3FF-18B5A92179CB
            Disk:                  disk2
            Status:                Online
            Size (Total):          1114478608384 B (1.1 TB)
            Conversion Progress:   -none-
            Revertible:            No
            LV Name:               Macintosh HD
            Volume Name:           Macintosh HD
            Content Hint:          Apple_HFS
Jeremys-iMac:~ jeremygaster$ sudo gpt -vv -r show /dev/disk0
WARNING: Improper use of the sudo command could lead to data loss
or the deletion of important system files. Please double-check your
typing when using sudo. Type "man sudo" for more information.
To proceed, enter your password, or type Ctrl-C to abort.
Password:
Sorry, try again.
Password:
gpt show: /dev/disk0: mediasize=121332826112; sectorsize=512; blocks=236978176
gpt show: /dev/disk0: PMBR at sector 0
gpt show: /dev/disk0: Pri GPT at sector 1
gpt show: /dev/disk0: Sec GPT at sector 236978175
      start       size  index  contents
          0          1         PMBR
          1          1         Pri GPT header
          2         32         Pri GPT table
         34          6        
         40     409600      1  GPT part - C12A7328-F81F-11D2-BA4B-00A0C93EC93B
     409640  236306352      2  GPT part - 53746F72-6167-11AA-AA11-00306543ECAC
  236715992     262144      3  GPT part - 426F6F74-0000-11AA-AA11-00306543ECAC
  236978136          7        
  236978143         32         Sec GPT table
  236978175          1         Sec GPT header
Jeremys-iMac:~ jeremygaster$ sudo fdisk /dev/disk0
Disk: /dev/disk0 geometry: 14751/255/63 [236978176 sectors]
Signature: 0xAA55
         Starting       Ending
#: id  cyl  hd sec -  cyl  hd sec [     start -       size]
1: EE 1023 254  63 - 1023 254  63 [         1 -  236978175] <Unknown ID>
2: 00    0   0   0 -    0   0   0 [         0 -          0] unused     
3: 00    0   0   0 -    0   0   0 [         0 -          0] unused     
4: 00    0   0   0 -    0   0   0 [         0 -          0] unused     
Jeremys-iMac:~ jeremygaster$