Q: Removed Bootcamp with Disk Util, recovered, BUT
Hi
I spent the day trying to install Windows 8.1 from a USB stick, on my iMac 5k with a 3TB Fusion Drive
Like many others here, I kept getting stuck with GPT errors. Eventually I stupidly removed the Bootcamp partition, and ran into the subsequent problems of lost/redundant HD space and greyed out options for removing/changing partition sizes in Disk Utility.
After ploughing through pages of forums, I managed to delete the redundant space while booted up from Internet recovery, using the terminal- my Fusion drive went back to its full 3TB capacity. Using advice from here:
However, I have been following LONER's great advice on these threads :
Windows 8.1 install on iMac with fusion drive, GPT partition error
Can't format former Boot Camp partition
But when i get to enter "2 3 4" I get this message :
Type from one to three GPT partition numbers, separated by spaces, to be
added to the hybrid MBR, in sequence: 2 3 4
Place EFI GPT (0xEE) partition first in MBR (good for GRUB)? (Y/N): y
GPT partition #2 does not exist or is too big; skipping.
GPT partition #3 does not exist or is too big; skipping.
GPT partition #4 does not exist or is too big; skipping.
No partitions converted; original protective/hybrid MBR is unmodified!
Maybe when I removed the redundant space on my HD I didn't fix the drive back to how it should have been?
I have a full backup on an external drive so if I have to wipe my Fusion drive and start again it's no big deal.
Here is the output from
diskutil list
diskutil cs list
sudo gpt -vv -r show /dev/disk1
sudo fdisk /dev/disk1
Wherry-iMac:~ Wherrys$ 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 *3.0 TB disk1
1: EFI EFI 209.7 MB disk1s1
2: Apple_CoreStorage 2.3 TB disk1s2
3: Apple_Boot Recovery HD 650.0 MB disk1s3
4: Microsoft Basic Data BOOTCAMP 700.9 GB disk1s4
/dev/disk2
#: TYPE NAME SIZE IDENTIFIER
0: Apple_HFS Macintosh HD *2.4 TB disk2
Logical Volume on disk0s2, disk1s2
51210933-CA61-4132-99DA-14284FB36473
Unencrypted Fusion Drive
Wherry-iMac:~ Wherrys$ diskutil cs list
CoreStorage logical volume groups (1 found)
|
+-- Logical Volume Group 04F51976-32DF-4C3F-9296-6ADADC7EEBAA
=========================================================
Name: Macintosh HD
Status: Online
Size: 2419855843328 B (2.4 TB)
Free Space: 376832 B (376.8 KB)
|
+-< Physical Volume D5D20091-CCC3-48F2-85F9-0207EFE7304A
| ----------------------------------------------------
| Index: 0
| Disk: disk0s2
| Status: Online
| Size: 120988852224 B (121.0 GB)
|
+-< Physical Volume A6AD4A38-FCA2-4543-9CD8-5525D9C2639F
| ----------------------------------------------------
| Index: 1
| Disk: disk1s2
| Status: Online
| Size: 2298866991104 B (2.3 TB)
|
+-> Logical Volume Family 2B272C20-609F-42F6-AB2E-219AEE481B7E
----------------------------------------------------------
Encryption Status: Unlocked
Encryption Type: None
Conversion Status: NoConversion
Conversion Direction: -none-
Has Encrypted Extents: No
Fully Secure: No
Passphrase Required: No
|
+-> Logical Volume 51210933-CA61-4132-99DA-14284FB36473
---------------------------------------------------
Disk: disk2
Status: Online
Size (Total): 2414000209920 B (2.4 TB)
Conversion Progress: -none-
Revertible: No
LV Name: Macintosh HD
Volume Name: Macintosh HD
Content Hint: Apple_HFS
Wherry-iMac:~ Wherrys$ sudo gpt -vv -r show /dev/disk1
Password:
gpt show: /dev/disk1: mediasize=3000592982016; sectorsize=512; blocks=5860533168
gpt show: /dev/disk1: PMBR at sector 0
gpt show: /dev/disk1: Pri GPT at sector 1
gpt show: /dev/disk1: Sec GPT at sector 5860533167
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 4489974592 2 GPT part - 53746F72-6167-11AA-AA11-00306543ECAC
4490384232 1269536 3 GPT part - 426F6F74-0000-11AA-AA11-00306543ECAC
4491653768 1400
4491655168 1368877056 4 GPT part - EBD0A0A2-B9E5-4433-87C0-68B6B72699C7
5860532224 911
5860533135 32 Sec GPT table
5860533167 1 Sec GPT header
Wherry-iMac:~ Wherrys$ sudo fdisk /dev/disk1
Disk: /dev/disk1 geometry: 97451/255/63 [1565565872 sectors]
Signature: 0xAA55
Starting Ending
#: id cyl hd sec - cyl hd sec [ start - size]
------------------------------------------------------------------------
1: EE 1023 254 63 - 1023 254 63 [ 1 - 4294967294] <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
Thanks in advance for any help
Posted on Jul 31, 2015 5:01 PM
This is what I had expected as well, based on the location of the partition outside the 2TB boundary. I am glad you have it under control. Please ensure you have good back ups of both OSes, because you want to avoid these shenanigans in the future.
Posted on Aug 1, 2015 6:37 AM

