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User profile for user: polkunus
polkunus Author
User level: Level 1
8 points

OSX Partition No Longer Showing Up As Bootable

Hello I did the same thing as this guy here:


Mac drive no longer showing up as boot option?


I needed more space in my bootcamp windows partition and saw there was 7GB of unallocated space called "untitled". I was able to use the windows disk manager and format the partition as an extra drive (This worked fine), but later realized that I needed the data all on one drive. I deleted the extra free space partition and used easeUS to expand the windows partition, this rendered my OS X partition unbootable. After this mess easeUS showed that I had a 189GB "Windows Recovery" partition, another 650MB "Windows Recovery" partition and my windows partition. I wiped my windows partition and installed OS X through it via recovery, and I'm stuck now trying to figure out how to recovery my initial OS X partition.


This is what I got from diskutil


Last login: Thu Sep 6 11:32:45 on console

polkss-MBP:~ polks$ 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: Windows Recovery 189.3 GB disk0s2

3: Windows Recovery 650.0 MB disk0s3

4: Apple_CoreStorage recovery 60.0 GB disk0s4

5: Apple_Boot Recovery HD 650.0 MB disk0s5


/dev/disk1 (internal, virtual):

#: TYPE NAME SIZE IDENTIFIER

0: Apple_HFS recovery +59.7 GB disk1

Logical Volume on disk0s4

82FF1904-F958-4BC1-AAAB-F55D6633276E

Unencrypted


/dev/disk2 (disk image):

#: TYPE NAME SIZE IDENTIFIER

0: GUID_partition_scheme +17.2 MB disk2

1: Apple_HFS Transmission 17.2 MB disk2s1


/dev/disk3 (disk image):

#: TYPE NAME SIZE IDENTIFIER

0: GUID_partition_scheme +122.9 MB disk3

1: Apple_HFS EaseUS Data Recovery... 122.8 MB disk3s1


polkss-MBP:~ polks$ diskutil cs list

CoreStorage logical volume groups (1 found)

|

+-- Logical Volume Group 1F05E8B7-B2BC-480C-894E-116F009C82B6

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

Name: recovery

Status: Online

Size: 60045303808 B (60.0 GB)

Free Space: 18915328 B (18.9 MB)

|

+-< Physical Volume F12B3087-9F83-4192-987E-2FC0011F8B49

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

| Index: 0

| Disk: disk0s4

| Status: Online

| Size: 60045303808 B (60.0 GB)

|

+-> Logical Volume Family E4F7136D-FA0B-45F0-9179-923935F6EF27

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

Encryption Type: None

|

+-> Logical Volume 82FF1904-F958-4BC1-AAAB-F55D6633276E

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

Disk: disk1

Status: Online

Size (Total): 59674066944 B (59.7 GB)

Revertible: Yes (no decryption required)

LV Name: recovery

Volume Name: recovery

Content Hint: Apple_HFS

polkss-MBP:~ polks$ sudo gpt -vv -r show /dev/disk0

Password:

Sorry, try again.

Password:

gpt show: /dev/disk0: mediasize=251000193024; sectorsize=4096; blocks=61279344

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 61279343

start size index contents

0 1 PMBR

1 1 Pri GPT header

2 4 Pri GPT table

6 76800 1 GPT part - C12A7328-F81F-11D2-BA4B-00A0C93EC93B

76806 46225651 2 GPT part - DE94BBA4-06D1-4D40-A16A-BFD50179D6AC

46302457 158692 3 GPT part - DE94BBA4-06D1-4D40-A16A-BFD50179D6AC

46461149 14659498 4 GPT part - 53746F72-6167-11AA-AA11-00306543ECAC

61120647 158692 5 GPT part - 426F6F74-0000-11AA-AA11-00306543ECAC

61279339 4 Sec GPT table

61279343 1 Sec GPT header

polkss-MBP:~ polks$ sudo fdisk /dev/disk0

Disk: /dev/disk0 geometry: 3814/255/63 [61279344 sectors]

Sector size: 4096 bytes

Signature: 0xAA55

Starting Ending

#: id cyl hd sec - cyl hd sec [ start - size]

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

1: EE 1023 254 63 - 1023 254 63 [ 1 - 61279343] <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



Any help is appreciated, thanks.

MacBook Pro, Mac OS X (10.7)

Posted on Sep 6, 2018 12:57 PM

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User profile for user: polkunus
polkunus Author
User level: Level 1
8 points

Posted on Sep 8, 2018 12:58 AM

Ok I got it fixed, I figured It out, thanks for the help


If you had a similar problem like me where you extended and resized your partition in Windows Bootcamp with tools like easeUS and have been googling around for a solution which probably had you landed at changing the GUID of your Main HD as 48465300-0000-11AA-AA11-00306543ECAC as the guide in the link above suggested. The guide is a bit dated as recent partitions are actually Filevault encrypted by default instead of HFS+ and setting the GUID of said drives as simply EFS would make them unmountable as if it were corrupted. You'd log in after boot and it crashes.


You simply need to follow the guide in the stack exchange link shared previously but instead of the GUID being 48465300-0000-11AA-AA11-00306543ECAC or the abbreviated "AF00" it should be 48465300-0000-11AA-AA11-00306543ECAC which is the GUID for an encrypted core storage volume. Make sure to follow the guide's steps for the recovery HD and changing the attribute of it. Once that happens, OS X will ask you to unlock the drive to mount it.


After that everything works as it should. Just reboot and log in.

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User profile for user: polkunus
polkunus Author
User level: Level 1
8 points

Sep 8, 2018 12:58 AM in response to polkunus

Ok I got it fixed, I figured It out, thanks for the help


If you had a similar problem like me where you extended and resized your partition in Windows Bootcamp with tools like easeUS and have been googling around for a solution which probably had you landed at changing the GUID of your Main HD as 48465300-0000-11AA-AA11-00306543ECAC as the guide in the link above suggested. The guide is a bit dated as recent partitions are actually Filevault encrypted by default instead of HFS+ and setting the GUID of said drives as simply EFS would make them unmountable as if it were corrupted. You'd log in after boot and it crashes.


You simply need to follow the guide in the stack exchange link shared previously but instead of the GUID being 48465300-0000-11AA-AA11-00306543ECAC or the abbreviated "AF00" it should be 48465300-0000-11AA-AA11-00306543ECAC which is the GUID for an encrypted core storage volume. Make sure to follow the guide's steps for the recovery HD and changing the attribute of it. Once that happens, OS X will ask you to unlock the drive to mount it.


After that everything works as it should. Just reboot and log in.

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User profile for user: polkunus
polkunus Author
User level: Level 1
8 points

Sep 7, 2018 12:16 AM in response to polkunus

Ok I managed to get some progress with this problem


I followed a guide here: I can no longer boot into macOS after resizing my bootcamp partition - Ask Different


And was able to install and use gdisk to change the GUID type of both disk0s2 to an HFS volume and disk0s3 to a recovery disk


I have now this exact same problem where this person was left off: Mac drive no longer showing up as boot option?


The original volume was bootable.


I was able to boot in, select my user and type in my password but it kernel panics/crashes. Guest mode works.


Now I'm stuck again. Trying safe mode

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User profile for user: polkunus
polkunus Author
User level: Level 1
8 points

Sep 8, 2018 12:17 AM in response to Loner T

This is the GPT


polks$ sudo gpt -vv -r show /dev/disk0

Password:

gpt show: /dev/disk0: mediasize=251000193024; sectorsize=4096; blocks=61279344

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 61279343

start size index contents

0 1 PMBR

1 1 Pri GPT header

2 4 Pri GPT table

6 76800 1 GPT part - C12A7328-F81F-11D2-BA4B-00A0C93EC93B

76806 46225651 2 GPT part - 48465300-0000-11AA-AA11-00306543ECAC

46302457 158692 3 GPT part - 426F6F74-0000-11AA-AA11-00306543ECAC

46461149 9856259 4 GPT part - 53746F72-6167-11AA-AA11-00306543ECAC

56317408 158692 5 GPT part - 426F6F74-0000-11AA-AA11-00306543ECAC

56476100 4770471 6 GPT part - 48465300-0000-11AA-AA11-00306543ECAC

61246571 32768

61279339 4 Sec GPT table

61279343 1 Sec GPT header


diskutil:


polkss-MacBook-Pro:~ polks$ 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_HFS 189.3 GB disk0s2

3: Apple_Boot Recovery HD 650.0 MB disk0s3

4: Apple_CoreStorage recovery 40.4 GB disk0s4

5: Apple_Boot Recovery HD 650.0 MB disk0s5

6: Apple_HFS Untitled 19.5 GB disk0s6


/dev/disk1 (internal, virtual):

#: TYPE NAME SIZE IDENTIFIER

0: Apple_HFS recovery +40.0 GB disk1

Logical Volume on disk0s4

82FF1904-F958-4BC1-AAAB-F55D6633276E

Unencrypted



So now I have two bootable OS X partitions. Recovery mode works with one I'm trying to restore (#2) but doesn't recognize the partition in disk utility, its grey and nameless but recognizes it as hfs. Also the partition doesn't show up in "start up". Single mode user doesn't work, same issue just crashes. The volume isn't mountable in recovery, it just errors out. In the 'recovery' partition (#4) which I'm operating to restore my original OS X (#2) can't mount or read the volume.

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OSX Partition No Longer Showing Up As Bootable

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