You can make a difference in the Apple Support Community!

When you sign up with your Apple Account, you can provide valuable feedback to other community members by upvoting helpful replies and User Tips.

Looks like no one’s replied in a while. To start the conversation again, simply ask a new question.

The Startup Disk cannot be partitioned or restored to a single partion

I partitioned my harddrive in the past with bootcamp but now i get this error

"The startup disk cannot be partitioned or restored to a single partition"

when i run bootcamp assistant again.


Please help!

MacBook Pro 13", macOS 10.13

Posted on Jun 8, 2019 9:20 PM

Reply
Question marked as Top-ranking reply

Posted on Jun 9, 2019 8:10 AM

In your specific case, given the current state, try


  • Step 1


diskutil eraseVolume jhfs+ BC1 disk0s3

diskutil eraseVolume jhfs+ BC2 disk0s4


diskutil mergePartitions jhfs+ BCMP disk0s3 disk0s4

diskutil list


  • Step 2


If you see only disk0s3 as the last entry under disk0, then run


diskutil eraseVolume fat32 BOOTCAMP disk0s3


and retry removing the partition using BC Assistant only.

Similar questions

7 replies
Question marked as Top-ranking reply

Jun 9, 2019 8:10 AM in response to estralitasky

In your specific case, given the current state, try


  • Step 1


diskutil eraseVolume jhfs+ BC1 disk0s3

diskutil eraseVolume jhfs+ BC2 disk0s4


diskutil mergePartitions jhfs+ BCMP disk0s3 disk0s4

diskutil list


  • Step 2


If you see only disk0s3 as the last entry under disk0, then run


diskutil eraseVolume fat32 BOOTCAMP disk0s3


and retry removing the partition using BC Assistant only.

Jun 9, 2019 8:03 AM in response to Loner T

Melissas-MacBook-Pro:~ estralitasky$ diskutil list


/dev/disk0 (internal, physical):


   #:                       TYPE NAME                    SIZE       IDENTIFIER


   0:      GUID_partition_scheme                        *500.3 GB   disk0


   1:                        EFI EFI                     209.7 MB   disk0s1


   2:                 Apple_APFS Container disk1         440.0 GB   disk0s2


   3:       Microsoft Basic Data BOOTCAMP                59.6 GB    disk0s3


   4:           Windows Recovery                         501.2 MB   disk0s4




/dev/disk1 (synthesized):


   #:                       TYPE NAME                    SIZE       IDENTIFIER


   0:      APFS Container Scheme -                      +440.0 GB   disk1


                                 Physical Store disk0s2


   1:                APFS Volume Macintosh HD            351.6 GB   disk1s1


   2:                APFS Volume Preboot                 21.9 MB    disk1s2


   3:                APFS Volume Recovery                519.5 MB   disk1s3


   4:                APFS Volume VM                      2.1 GB     disk1s4


MacBook Pro (Retina, 13-inch, Early 2015)

macOS High Sierra 10.13.6

Jun 9, 2019 8:21 AM in response to Loner T

Melissas-MacBook-Pro:~ estralitasky$ diskutil eraseVolume jhfs+ BC2 disk0s4


Started erase on disk0s4


Unmounting disk


Error: -69874: Couldn't modify partition map


Melissas-MacBook-Pro:~ estralitasky$ diskutil mergePartitions jhfs+ BCMP disk0s3 disk0s4


Could not find disk for disk0s4


Melissas-MacBook-Pro:~ estralitasky$ diskutil list


/dev/disk0 (internal, physical):


   #:                       TYPE NAME                    SIZE       IDENTIFIER


   0:      GUID_partition_scheme                        *500.3 GB   disk0


   1:                        EFI EFI                     209.7 MB   disk0s1


   2:                 Apple_APFS Container disk1         440.0 GB   disk0s2


   3:                  Apple_HFS BC1                     59.4 GB    disk0s3




/dev/disk1 (synthesized):


   #:                       TYPE NAME                    SIZE       IDENTIFIER


   0:      APFS Container Scheme -                      +440.0 GB   disk1


                                 Physical Store disk0s2


   1:                APFS Volume Macintosh HD            351.6 GB   disk1s1


   2:                APFS Volume Preboot                 21.9 MB    disk1s2


   3:                APFS Volume Recovery                519.5 MB   disk1s3


   4:                APFS Volume VM                      2.1 GB     disk1s4


The Startup Disk cannot be partitioned or restored to a single partion

Welcome to Apple Support Community
A forum where Apple customers help each other with their products. Get started with your Apple Account.