User profile for user: NoiD™
NoiD™ Author
User level: Level 1
15 points

Boot Camp error. Hard drive issues.

I did that last night. Also added "diskutil cs <UUID>" ( not knowing that it was going to split the SSD from my HHD) But if bootcamp would finally work it would be worth it. Sadly same problem as before. This stuff is over my head. IMO, apple should fix their own mistakes. If I wanted to learn DOS I would of bought a PC. lol!


Last login: Sat Mar 14 01:26:04 on console

Maxs-iMac:~ maxlucas$ 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_HFS Untitled 120.5 GB disk0s2

3: Apple_Boot Recovery HD 650.0 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 3.0 TB disk1s2

3: Apple_Boot Recovery HD 650.1 MB disk1s3

/dev/disk2

#: TYPE NAME SIZE IDENTIFIER

0: Apple_HFS Macintosh HD *3.0 TB disk2

Logical Volume on disk1s2

00B35B81-2E1D-402B-994B-CD1592E25796

Unencrypted


__________________________________________________________________


diskutil cs list

CoreStorage logical volume groups (1 found)

|

+-- Logical Volume Group B686DAEC-F723-4D7A-A513-F08FF00A7628

=========================================================

Name: Untitled

Status: Online

Size: 2999733108736 B (3.0 TB)

Free Space: 438272 B (438.3 KB)

|

+-< Physical Volume C55057C8-B6D1-44CE-82CF-5C78A0B9AC77

| ----------------------------------------------------

| Index: 0

| Disk: disk1s2

| Status: Online

| Size: 2999733108736 B (3.0 TB)

|

+-> Logical Volume Family 2BF6D196-CB02-4D76-87BC-44224038B0FA

----------------------------------------------------------

Encryption Status: Unlocked

Encryption Type: None

Conversion Status: NoConversion

Conversion Direction: -none-

Has Encrypted Extents: No

Fully Secure: No

Passphrase Required: No

|

+-> Logical Volume 00B35B81-2E1D-402B-994B-CD1592E25796

---------------------------------------------------

Disk: disk2

Status: Online

Size (Total): 2999380344832 B (3.0 TB)

Conversion Progress: -none-

Revertible: No

LV Name: Macintosh HD

Volume Name: Macintosh HD

Content Hint: Apple_HFS

_______________________________________________________________________


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:

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 235298960 2 GPT part - 48465300-0000-11AA-AA11-00306543ECAC

235708600 1269536 3 GPT part - 426F6F74-0000-11AA-AA11-00306543ECAC

236978136 7

236978143 32 Sec GPT table

Any help would be appreciated. This computer never had bootcamp installed on it. I was using Parallels until they wanted me to buy an upgrade, So been attempting to install boot camp for about 6 months? A year? I forgot. Boot camp assistant, at the "allocation of space" page. where it shows the partition slider. It's stuck at 0gb. Trying to slide adjuster doesn't work. But if I click on it or use mouse scroll wheel it will show "20gb" partition for bootcamp, (no more no less) even though I have 330gb's free... When I proceed with the install, 22 seconds later I get "Your disk could not be partitioned" error message.


iMac (27-inch, Late 2012), OS X Yosemite (10.10), 3TB Fusion Drive

Posted on Mar 14, 2015 4:14 PM

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26 replies
User profile for user: NoiD™
NoiD™ Author
User level: Level 1
15 points

Mar 14, 2015 4:27 PM in response to NoiD™

True, that's new, did that last night when following another persons post on how to fix drive. Which it split the SSD from HD, by means of 'diskutil delete cs<UUID>'. I tried this because everything else I tried didn't work. Even when the Fusion drive was in it's "stock state" nothing I tried worked. I haven't been able to figure out how to recombine them again. Not that BCA worked when it was.

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User profile for user: NoiD™
NoiD™ Author
User level: Level 1
15 points

Mar 14, 2015 4:37 PM in response to Loner T

I just found an old post of mine (4 months ago) Why won't BootCamp allow me to make a Partition?This was how my HD was up until tonight.


Yes I made a TimeMachine backup lastnight. Split the drive thinking that was the issue. Reformatted drives with disk utility. Clean install from internet. Rebooted, made temp user, downloaded OS update, Reinstalled backup (Took 5 hours). Then tried BCA. Same Ol' problem.

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User profile for user: Loner T
Loner T
User level: Level 9
59,536 points

Mar 14, 2015 4:49 PM in response to NoiD™

You have two options.


1. Split the SSD and install Bootcamp on one half of SSD (much faster to boot Windows), or,

2. Use the following steps

a. Use Internet Recovery, rebuild the CS and either Restore, or use Migration Assistant.

b. Verify that the CS volume looks correct.

c. Run BCA and try to partition.


The diskutil cs command needed a addDisk <UUID> where UUID belongs to the HDD, not the SSD. If the SSD is now added, it will be index 1, which will have really bad performance, because a Fusion drive should have an SSD at index 0, and HDD(s) at index 1 and higher.


Right now, you have the 3TB HDD at index 0, which needs to be 1.


+-< Physical Volume C55057C8-B6D1-44CE-82CF-5C78A0B9AC77

| ----------------------------------------------------

| Index: 0

| Disk: disk1s2

| Status: Online

| Size: 2999733108736 B (3.0 TB)

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User profile for user: Loner T
Loner T
User level: Level 9
59,536 points

Mar 14, 2015 6:46 PM in response to NoiD™

NoiD™ wrote:


Should I try "diskutil cs create Fusion disk0 disk1"?

You should not use disk0. disk0s2 is the usable volume. The problem you will run into is that it will be at index 1 (index 0 is already occupied by the HDD).


No joy! Not able to rebuild the cs. I tried the diskutil cs addDisk <UUID-the HHD> No errors. but then did a diskutil cs list, nothings changed. Do I first need to do a diskutil cs delete <UUID> then and diskutil cs addDisk <UUID>?


You already have the HDD in the CS volume. It will have no effect. If you delete the only UUID which belongs to HDD, you will destroy the CS. The best option you have to rebuild the CS from scratch using Internet Recovery and restoring using TM. You mention it takes 5 hours, but I do not see any other way.


We can experiment, if you are willing. Can you right click on Macintosh HD in Finder and click on Get Info and post a screen shot? What is the amount of disk space used?

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User profile for user: Loner T
Loner T
User level: Level 9
59,536 points

Mar 16, 2015 5:07 AM in response to NoiD™

Another option which could have been available is the ability to revert to a JHFS+ volume. In your specific case, it is no available.

Revertible: No


If you are willing to experiment try


1. Add SSD to the LVG


diskutil cs addDisk B686DAEC-F723-4D7A-A513-F08FF00A7628 disk0s2


2. Remove the HDD after a few days of use (this will allow disk blocks to stabilize).


diskutil cs removeDisk C55057C8-B6D1-44CE-82CF-5C78A0B9AC77


3. Re-add the HDD back to the LVG.


diskutil cs addDisk B686DAEC-F723-4D7A-A513-F08FF00A7628 disk1s2

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User profile for user: NoiD™
NoiD™ Author
User level: Level 1
15 points

Mar 16, 2015 10:14 AM in response to Loner T

Ok, back on after restore. Here's what I have:


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 3.0 TB disk1s2

3: Apple_Boot Recovery HD 650.1 MB disk1s3

/dev/disk2

#: TYPE NAME SIZE IDENTIFIER

0: Apple_HFS Macintosh HD *3.1 TB disk2

Logical Volume on disk0s2, disk1s2

8710B668-FE21-4600-82B5-717B1B7155EB

Unencrypted Fusion Drive

______________________________________________________________

diskutil cs list

CoreStorage logical volume groups (1 found)

|

+-- Logical Volume Group C35B1301-447A-4236-BF4B-9BE34AD1807B

=========================================================

Name: Internal Drive

Status: Online

Size: 3120721960960 B (3.1 TB)

Free Space: 0 B (0 B)

|

+-< Physical Volume 166116C4-B3CE-4092-9DA3-1B5F16A56F28

| ----------------------------------------------------

| Index: 0

| Disk: disk0s2

| Status: Online

| Size: 120988852224 B (121.0 GB)

|

+-< Physical Volume F8B22500-2277-400D-9B29-39C13D40A981

| ----------------------------------------------------

| Index: 1

| Disk: disk1s2

| Status: Online

| Size: 2999733108736 B (3.0 TB)

|

+-> Logical Volume Family DD02BC11-11C2-401D-9A03-8DDD88B0EC2D

----------------------------------------------------------

Encryption Status: Unlocked

Encryption Type: None

Conversion Status: NoConversion

Conversion Direction: -none-

Has Encrypted Extents: No

Fully Secure: No

Passphrase Required: No

|

+-> Logical Volume 8710B668-FE21-4600-82B5-717B1B7155EB

---------------------------------------------------

Disk: disk2

Status: Online

Size (Total): 3114866704384 B (3.1 TB)

Conversion Progress: -none-

Revertible: No

LV Name: Macintosh HD

Volume Name: Macintosh HD

Content Hint: Apple_HFS

___________________________________________________________________

Tried BCA, same issue: When trying to increase slider from this..

User uploaded file

It will only change to this:

User uploaded file

Selecting install leads to this:

User uploaded file

I know this is hard drive related. But it's very irritating that after a complete wipe and system restore that I'm still unable to install Apple software on an Apple System just after Disk Utilities told me it fixed my system...

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User profile for user: Loner T
Loner T
User level: Level 9
59,536 points

Mar 16, 2015 10:42 AM in response to NoiD™

It is encouraging to see disk0s2 as index 0. Do you want to try doing it via a Terminal command?


The following command is used from the Terminal.


diskutil cs resizeStack

Usage: diskutil coreStorage resizeStack

lvUUID|MountPoint|DiskIdentifier|DeviceNode [pvUUID] size

[part1Format part1Name part1Size part2Format part2Name part2Size

part3Format part3Name part3Size ...]

Resize both a logical volume and one of its underlying physical volumes in a

single operation. A single physical volume is always chosen for the underlying

shrink or grow, even if the logical volume's logical volume group is backed by

more than one physical volume. If you do not specify a particular physical

volume, then one is chosen for you. Note that if this is a grow operation,

this verb is limited by the physical volume's partition's room to grow.

Specifying zero as the size asks for an "automatic" grow-to-fill operation.

If this is a shrink operation, you can optionally request that new partitions

be created in the newly-formed free space gap in the partition map.

Again, note that this only resizes one of the underlying physical volumes; if

you need more sophistication in managing your topology, you should use the

separate physical and logical volume resize verbs.

Example: diskutil coreStorage resizeStack

11111111-2222-3333-4444-555555555555 10g JHFS+ New 1g

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User profile for user: Loner T
Loner T
User level: Level 9
59,536 points

Mar 16, 2015 12:32 PM in response to NoiD™

The goal is to split your HDD into three parts.


First part is OSX and is roughly X TB.

Second part is 2-X TB for Windows.

Third part is the remainder of the 3TB disk.


Since your iMac is a preUEFI Mac (pre Late 2013), it cannot use EFI. The MSR partition for EFI should also be located in the first 2TB of the designated disk, because it is a FAT partition.


The command will look like


diskutil cs resizeStack 8710B668-FE21-4600-82B5-717B1B7155EB F8B22500-2277-400D-9B29-39C13D40A981 1500g FAT BOOTCAMP 500g JHFS+ OSX-Remainder 0g


It reduces the current Macintosh HD (and the underlying 3TB HDD - the second long string points to disk1s2 in your diskutil cs list output) from 3TB to 1500G, creates a 500G Bootcamp, and leaves the remaining space as JHFS+, which can then be added back to the CS volume.

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User profile for user: NoiD™
NoiD™ Author
User level: Level 1
15 points

Mar 16, 2015 4:53 PM in response to Loner T

Here's the message I got when doing that:



diskutil cs resizeStack 8710B668-FE21-4600-82B5-717B1B7155EB F8B22500-2277-400D-9B29-39C13D40A981 1500g FAT BOOTCAMP 300g JHFS+ OSX-Remainder 0g

FAT does not appear to be a valid file system format or partition type

Use diskutil listFilesystems to view a list of supported file systems

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User profile for user: NoiD™
NoiD™ Author
User level: Level 1
15 points

Mar 16, 2015 4:54 PM in response to NoiD™

diskutil listFilesystems

Formattable file systems


These file system personalities can be used for erasing and partitioning.

When specifying a personality as a parameter to a verb, case is not considered.

Certain common aliases (also case-insensitive) are listed below as well.


-------------------------------------------------------------------------------

PERSONALITY USER VISIBLE NAME

-------------------------------------------------------------------------------

ExFAT ExFAT

Free Space Free Space

(or) free

MS-DOS MS-DOS (FAT)

MS-DOS FAT12 MS-DOS (FAT12)

MS-DOS FAT16 MS-DOS (FAT16)

MS-DOS FAT32 MS-DOS (FAT32)

(or) fat32

HFS+ Mac OS Extended

Case-sensitive HFS+ Mac OS Extended (Case-sensitive)

(or) hfsx

Case-sensitive Journaled HFS+ Mac OS Extended (Case-sensitive, Journaled)

(or) jhfsx

Journaled HFS+ Mac OS Extended (Journaled)

(or) jhfs+

Maxs-iMac:~ maxlucas$

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Boot Camp error. Hard drive issues.

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