Lost HDD partition after removal of Windows Bootcamp

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sigenapipol Author

Level 1

8 points

Lost HDD partition after removal of Windows Bootcamp

i have a macbook air 13" 2018 128gb, i just removed the windows bootcamp partition

now i only have 84gb flash storage

my diskutil list is

/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_APFS Container disk1 84.0 GB disk0s2

/dev/disk1 (synthesized):

#: TYPE NAME SIZE IDENTIFIER

0: APFS Container Scheme - +84.0 GB disk1

Physical Store disk0s2

1: APFS Volume Macintosh HD 60.6 GB disk1s1

2: APFS Volume Preboot 20.6 MB disk1s2

3: APFS Volume Recovery 519.0 MB
disk1s3

4: APFS Volume VM 1.1 GB disk1s4

i've seen others with similar problems but they have the third disk which is the lost space. while i don't

Thanks in advance

MacBook Air, iOS 11.4.1

Posted on Jul 21, 2018 12:41 PM

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Answer 1

sigenapipol Author

Level 1

8 points

Jul 21, 2018 11:30 PM in response to Loner T

hi

to confirm

installed gdisk

then ill have to run Terminal

sudo gdisk /dev/disk0 (press enter)

p (press enter)

n (press enter)

3 (press enter)

here i am now

to confirm ill type these next?(sorry im a newbie)

488757328 (Start Sector)

+488347699 (Size of GPT3)

0700 (Microsoft Basic Data)

p (print)

w (write)

y (Confirm write)

q (quit, if necessary)

Run

diskutil repairDisk disk0

Reboot, and run BC Assistant, and click on Restore/Remove.

thanks in advance

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Answer 2

Loner T

Level 9

59,471 points

Jul 22, 2018 7:08 AM in response to sigenapipol

Can you use Mistake deleting Bootcamp, now lost partition as a reference? If you need the specific commands, please let me know.

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Answer 3

sigenapipol Author

Level 1

8 points

Jul 21, 2018 1:55 PM in response to Loner T

first i got the permission error, disabled it using the steps you've given

then restarted my mac

opened terminal typed sudo gpt -vv -r show /dev/disk1

gpt show: unable to open device '/dev/disk1': Resource busy

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Answer 4

sigenapipol Author

Level 1

8 points

Jul 21, 2018 11:02 PM in response to Loner T

thank you for taking your time

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
164063192 2
GPT part - 7C3457EF-0000-11AA-AA11-00306543ECAC

164472832
72505311

236978143 32 Sec GPT table

236978175 1 Sec GPT header

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Answer 5

Loner T

Level 9

59,471 points

Jul 22, 2018 7:08 AM in response to sigenapipol

sigenapipol wrote:

to confirm

installed gdisk

Yes.

sigenapipol wrote:

to confirm ill type these next?(sorry im a newbie)

488757328 (Start Sector)

+488347699 (Size of GPT3)

You need to use

164472832 (Start Sector)

+72505311 (Size of GPT3)

These are values derived from your specific GPT layout/output. You cannot use values from another discussion.

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Answer 6

Loner T

Level 9

59,471 points

Jul 21, 2018 1:10 PM in response to sigenapipol

Post the output of

sudo gpt -vv -r show /dev/disk1

If you get any permission errors, disable SIP using SIP - Enable and Disable steps .

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Answer 7

Loner T

Level 9

59,471 points

Jul 21, 2018 3:51 PM in response to sigenapipol

Please use disk0 instead of disk1.

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Answer 8

sigenapipol Author

Level 1

8 points

Jul 22, 2018 7:09 AM in response to Loner T

worked! thank you so much for the help! i really appreciate it

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Answer 9

Loner T

Level 9

59,471 points

Jul 22, 2018 7:20 AM in response to sigenapipol

Excellent. Please remember to backup macOS.

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Lost HDD partition after removal of Windows Bootcamp

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