Can't remove partition with High Sierra

hi there,

I tried to install Windows on a brand new Macbook Pro 13' and got an error with BCA at the time of install. I left BCA try to remove the windows partition but I stopped it after 2 hours because nothing was happening...it didn't remove it and now I am stuck with the partition. Tried to use Disk Utility in Recovery mode (command+shift, but not the internet one) but couldn't get it to work...tried to change the partition format to APFS hoping that it would let it "merge" with the mac HD partition but can't get Disk Utility to give me the "minus" sign to remove it...I've seen some posts with the same issue and using console to fix it but seems to be way out of my league...thanks in advance for any help!

MacBook Pro, iOS 11.3, Bootcamp

Posted on Apr 3, 2018 3:06 PM

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Apr 3, 2018 3:28 PM in response to Loner T

Hi Loner T, thanks for looking at it! I saw you replied to something similar! here it is:

Cheers.


Last login: Wed Apr 4 09:41:00 on ttys000

Deniss-MacBook-Pro:~ denis$ diskutil list

/dev/disk0 (internal):

#: TYPE NAME SIZE IDENTIFIER

0: GUID_partition_scheme 500.3 GB disk0

1: EFI EFI 314.6 MB disk0s1

2: Apple_APFS Container disk1 79.0 GB disk0s2

3: Microsoft Basic Data OSXRESERVED 8.0 GB disk0s3

4: Apple_HFS OS X Base System 412.8 GB disk0s4


/dev/disk1 (synthesized):

#: TYPE NAME SIZE IDENTIFIER

0: APFS Container Scheme - +79.0 GB disk1

Physical Store disk0s2

1: APFS Volume Macintosh HD 29.5 GB disk1s1

2: APFS Volume Preboot 21.0 MB disk1s2

3: APFS Volume Recovery 536.8 MB disk1s3

4: APFS Volume VM 1.1 GB disk1s4


Deniss-MacBook-Pro:~ denis$ diskutil apfs list

APFS Container (1 found)

|

+-- Container disk1 A8041CE7-0922-4DD8-A233-781B4A771389

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

APFS Container Reference: disk1

Capacity Ceiling (Size): 78999998464 B (79.0 GB)

Capacity In Use By Volumes: 31263387648 B (31.3 GB) (39.6% used)

Capacity Available: 47736610816 B (47.7 GB) (60.4% free)

|

+-< Physical Store disk0s2 C7DF028B-B850-4AE8-850A-088A3269C031

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

| APFS Physical Store Disk: disk0s2

| Size: 78999998464 B (79.0 GB)

|

+-> Volume disk1s1 055E64D4-8A61-4AD3-93A0-323A3A60FF47

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

| APFS Volume Disk (Role): disk1s1 (No specific role)

| Name: Macintosh HD (Case-insensitive)

| Mount Point: /

| Capacity Consumed: 29509369856 B (29.5 GB)

| Encrypted: No

|

+-> Volume disk1s2 7ED87941-9D6C-4816-B074-07D8964DCACD

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

| APFS Volume Disk (Role): disk1s2 (Preboot)

| Name: Preboot (Case-insensitive)

| Mount Point: Not Mounted

| Capacity Consumed: 21020672 B (21.0 MB)

| Encrypted: No

|

+-> Volume disk1s3 2582819F-4809-4D21-80E7-5C793EB302DE

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

| APFS Volume Disk (Role): disk1s3 (Recovery)

| Name: Recovery (Case-insensitive)

| Mount Point: Not Mounted

| Capacity Consumed: 536768512 B (536.8 MB)

| Encrypted: No

|

+-> Volume disk1s4 521D7F06-1468-4466-95E6-5745A2BC004B

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

APFS Volume Disk (Role): disk1s4 (VM)

Name: VM (Case-insensitive)

Mount Point: /private/var/vm

Capacity Consumed: 1073762304 B (1.1 GB)

Encrypted: No

Deniss-MacBook-Pro:~ denis$

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Apr 3, 2018 3:34 PM in response to nzdenis

In Terminal, run


diskutil eraseVolume jhfs+ BC1 disk0s3

diskutil eraseVolume jhfs+ BC2 disk0s4

diskutil mergePartitions jhfs+ BCMP disk0s3 disk0s4

diskutil list


If you see only disk0s3, then


diskutil eraseVolume fat32 BOOTCAMP disk0s3


and run BC Assistant and click on Remove/Restore.

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Apr 3, 2018 3:43 PM in response to Loner T

that's what I get when I run distil list after the first steps


Deniss-MacBook-Pro:~ denis$ diskutil list

/dev/disk0 (internal):

#: TYPE NAME SIZE IDENTIFIER

0: GUID_partition_scheme 500.3 GB disk0

1: EFI EFI 314.6 MB disk0s1

2: Apple_APFS Container disk1 79.0 GB disk0s2

3: Apple_HFS BC1 420.8 GB disk0s3


/dev/disk1 (synthesized):

#: TYPE NAME SIZE IDENTIFIER

0: APFS Container Scheme - +79.0 GB disk1

Physical Store disk0s2

1: APFS Volume Macintosh HD 29.5 GB disk1s1

2: APFS Volume Preboot 21.0 MB disk1s2

3: APFS Volume Recovery 536.8 MB disk1s3

4: APFS Volume VM 1.1 GB disk1s4


Deniss-MacBook-Pro:~ denis$ diskutil list

/dev/disk0 (internal):

#: TYPE NAME SIZE IDENTIFIER

0: GUID_partition_scheme 500.3 GB disk0

1: EFI EFI 314.6 MB disk0s1

2: Apple_APFS Container disk1 79.0 GB disk0s2

3: Apple_HFS BC1 420.8 GB disk0s3


/dev/disk1 (synthesized):

#: TYPE NAME SIZE IDENTIFIER

0: APFS Container Scheme - +79.0 GB disk1

Physical Store disk0s2

1: APFS Volume Macintosh HD 29.5 GB disk1s1

2: APFS Volume Preboot 21.0 MB disk1s2

3: APFS Volume Recovery 536.8 MB disk1s3

4: APFS Volume VM 1.1 G

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Apr 3, 2018 5:48 PM in response to nzdenis

Excellent. Please remember to backup macOS before you re-attempt a Windows.


nzdenis wrote:


let me know if you ever come down to Auckland and will invite you for a drink and dinner! Cheers. Denis


Thanks for the invitation, Denis. I am a big fan of Tolkien and Peter Jackson. Perhaps, I will come and visit The Shire and view the sunrise on Caradhras. You have a beautiful country. 😉

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Apr 11, 2018 4:16 AM in response to Loner T

Hi loner, could you please help to check if my disk is fine I have remove the partition but seems disk3 could be merged ?


Last login: Wed Apr 11 07:56:37 on ttys000

Thamyress-MacBook-Pro:~ thamyvas$ diskutil list

/dev/disk0 (internal):

#: TYPE NAME SIZE IDENTIFIER

0: GUID_partition_scheme 251.0 GB
disk0

1: EFI EFI 314.6 MB
disk0s1

2: Apple_APFS Container disk1 182.0 GB
disk0s2

3: Apple_HFS BC1 68.6 GB disk0s3


/dev/disk1 (synthesized):

#: TYPE NAME SIZE IDENTIFIER

0: APFS Container Scheme - +182.0 GB
disk1

Physical Store disk0s2

1: APFS Volume Macintosh HD 43.9 GB disk1s1

2: APFS Volume Preboot 21.0 MB disk1s2

3: APFS Volume Recovery 532.5 MB
disk1s3

4: APFS Volume VM 1.1 GB disk1s4


Thamyress-MacBook-Pro:~ thamyvas$

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Can't remove partition with High Sierra

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