Q: The startup disk cannot be partitioned or restored to a single partition.
Hi Loner T, I've followed this thread from the start as I have the exact same problem installing bootcamp. This is my first Mac so I'm definitely a newbie and made the mistake of erasing windows and trying to delete the bootcamp partition as I didn't make the partition big enough in the first instance.
I now am in the same boat that Barncore was in and I too am not very "techie".
I did boot into recovery and use disk utility and cs list...this is the result.
Could I take the liberty and ask if you'd cast your eye at the image and give your verdict. It is a late 2013 iMac 27 with I7 processor, 24 GB ram and a 1TB fusion drive.
I'm sorry to burden you with this but you seemed so knowledgable in the thread and I'm desperate to get windows 8.1pro back on as I need it for a couple of programs that are only available within the windows environment.
Best regards.
P.S. When I booted into recovery and ran repair disk in the top drive it listed this in red, although it said the disk appeared ok.
"Invalid disk label @ 4096 cksum mismatch".
Loner T wrote....
Can I suggest a new discussion? Since you are in Recovery (I assume Local Recovery - Command +R), this may be a bit more painful to post output with photographs. Can you boot normally into OS X without any issues? If yes, from OS X Terminal post the output of the following Terminal commands.
diskutil list
diskutil cs list
sudo gpt -vv -r show /dev/disk0
sudo fdisk /dev/disk0
The "sudo" commands will prompt for your password, and it will not be echoed back. You may also see a warning about improper use of "sudo" and potential data loss due to "abuse" of the command.
It is much easier to post information from the normal boot of OS X. If we need to go back to Internet Recovery, it can be done after we gather some information.
Yes I can boot normally without issue, here are the outputs..
distil list....
/dev/disk0 (internal, physical):
#: TYPE NAME SIZE IDENTIFIER
0: GUID_partition_scheme *121.3 GB disk0
1: EFI EFI 209.7 MB disk0s1
2: Apple_CoreStorage Internal Drive 121.0 GB disk0s2
3: Apple_Boot Boot OS X 134.2 MB disk0s3
/dev/disk1 (internal, physical):
#: TYPE NAME SIZE IDENTIFIER
0: GUID_partition_scheme *1.0 TB disk1
1: EFI EFI 209.7 MB disk1s1
2: Apple_CoreStorage Internal Drive 848.9 GB disk1s2
3: Apple_Boot Recovery HD 650.0 MB disk1s3
4: EFI NO NAME 104.9 MB disk1s4
/dev/disk2 (internal, virtual):
#: TYPE NAME SIZE IDENTIFIER
0: Apple_HFS Macintosh HD +964.3 GB disk2
Logical Volume on disk0s2, disk1s2
0F9B0654-203A-42AD-8840-E4E23177C0C7
Unencrypted Fusion Drive
/dev/disk3 (external, physical):
#: TYPE NAME SIZE IDENTIFIER
0: GUID_partition_scheme *1.0 TB disk3
1: EFI EFI 209.7 MB disk3s1
2: Apple_HFS Passport for Mac 999.8 GB disk3s2
Gerrys-iMac27:~ ME$
distil cs list...
CoreStorage logical volume groups (1 found)
|
+-- Logical Volume Group 0794D847-5234-4609-A6AF-82B40B41A1F0
=========================================================
Name: Internal Drive
Status: Online
Size: 969855918080 B (969.9 GB)
Free Space: 0 B (0 B)
|
+-< Physical Volume ABA7389B-D341-41B0-893B-2337E4021183
| ----------------------------------------------------
| Index: 0
| Disk: disk0s2
| Status: Online
| Size: 120988852224 B (121.0 GB)
|
+-< Physical Volume E5BF1D6A-47AB-45FC-84A5-C32B725285AB
| ----------------------------------------------------
| Index: 1
| Disk: disk1s2
| Status: Online
| Size: 848867065856 B (848.9 GB)
|
+-> Logical Volume Family F99AD810-6552-4297-96F9-EC5D0458C625
----------------------------------------------------------
Encryption Type: None
|
+-> Logical Volume 0F9B0654-203A-42AD-8840-E4E23177C0C7
---------------------------------------------------
Disk: disk2
Status: Online
Size (Total): 964336500736 B (964.3 GB)
Revertible: No
LV Name: Macintosh HD
Volume Name: Macintosh HD
Content Hint: Apple_HFS
LVG Type: Fusion, Sparse
Gerrys-iMac27:~ ME$
sudo gpt -vv -r show /dev/disk0...
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
Gerrys-iMac27:~ ME$
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
Gerrys-iMac27:~ ME$
iMac (27-inch, Late 2013)
Posted on Dec 21, 2015 7:19 AM
Please run SMC and NVRAM Reset. Disable SIP.
1. Boot into Local Recovery (Command+R).
2. Start Utilities -> Terminal.
3. Type csrutil disable in Terminal and press Enter/Return.
4. Type csrutil status.
5. Boot normally, and type csrutil status to confirm that all individual entries are still disabled.
Now try the EFI boot again. (I know it is a bit tedious ).
Posted on Dec 22, 2015 12:01 PM