Resolved How do I add back a partition to the Fusion Drive

Discussion in 'macOS' started by milomak, Apr 5, 2018.

  1. milomak macrumors member

    Joined:
    Apr 25, 2010
    #1
    I experienced a power failure when I was in Bootcamp. When I rebooted againI noticed I could not boot into Bootcamp. But I could access the Bootcamp partition in in Finder and be able to work on files.

    So when I went to Disk Utility, I noticed that it states the size of the Fusion Drive as being just bigger than macOS install and completely disregards the Bootcamp partition

    Screen Shot 2018-04-05 at 20.09.31.png

    diskutil cs list
    Code:
    CoreStorage logical volume groups (1 found)
    |
    +-- Logical Volume Group DD388015-1FFF-4831-9CF2-9CD8367E2742
        =========================================================
        Name:         iMac
        Status:       Online
        Size:         826852675584 B (826.9 GB)
        Free Space:   749568 B (749.6 KB)
        |
        +-< Physical Volume 1CA5E61B-C026-4CF8-8AF4-B7DF7F5F22D2
        |   ----------------------------------------------------
        |   Index:    0
        |   Disk:     disk1s2
        |   Status:   Online
        |   Size:     120338849792 B (120.3 GB)
        |
        +-< Physical Volume 8E14E744-451B-416F-A1BB-381DAE3E02EA
        |   ----------------------------------------------------
        |   Index:    1
        |   Disk:     disk0s2
        |   Status:   Online
        |   Size:     706513825792 B (706.5 GB)
        |
        +-> Logical Volume Family 1D47764C-26B0-4C36-93A7-323A023C19A6
            ----------------------------------------------------------
            Encryption Type:         None
            |
            +-> Logical Volume 94350E47-4BD3-48A2-B9DC-454AACAF0083
                ---------------------------------------------------
                Disk:                  disk2
                Status:                Online
                Size (Total):          821000273920 B (821.0 GB)
                Revertible:            No
                LV Name:               Macintosh HD
                Volume Name:           Macintosh HD
                Content Hint:          Apple_HFS
                LVG Type:              Fusion, Sparse
    
    $ diskutil list
    Code:
    /dev/disk0 (internal, physical):
       #:                       TYPE NAME                    SIZE       IDENTIFIER
       0:      GUID_partition_scheme                        *2.0 TB     disk0
       1:                        EFI EFI                     209.7 MB   disk0s1
       2:          Apple_CoreStorage iMac                    706.5 GB   disk0s2
       3:                 Apple_Boot Recovery HD             650.0 MB   disk0s3
       4:       Microsoft Basic Data BOOTCAMP                1.3 TB     disk0s4
    
    /dev/disk1 (internal, physical):
       #:                       TYPE NAME                    SIZE       IDENTIFIER
       0:      GUID_partition_scheme                        *121.3 GB   disk1
       1:                        EFI EFI                     209.7 MB   disk1s1
       2:          Apple_CoreStorage iMac                    120.3 GB   disk1s2
       3:                 Apple_Boot Boot OS X               134.2 MB   disk1s3
       4:                  Apple_HFS Boot OS X               134.2 MB   disk1s4
       5:           Linux Filesystem boot                    73.4 MB    disk1s5
       6:           Linux Filesystem                         440.4 MB   disk1s6
    
    /dev/disk2 (internal, virtual):
       #:                       TYPE NAME                    SIZE       IDENTIFIER
       0:                  Apple_HFS Macintosh HD           +821.0 GB   disk2
                                     Logical Volume on disk1s2, disk0s2
                                     94350E47-4BD3-48A2-B9DC-454AACAF0083
                                     Unencrypted Fusion Drive
    
    What command do I need to issue to add the Bootcamp partition back into Fusion Drive?
     
  2. milomak thread starter macrumors member

    Joined:
    Apr 25, 2010
    #2
    If anyone is running Bootcamp, could you post your diskutil cs list and diskutil list please
     
  3. milomak, May 1, 2018
    Last edited: May 1, 2018

    milomak thread starter macrumors member

    Joined:
    Apr 25, 2010
    #3
    Solution

    That is to say i can boot into my Windows again.

    It seems though diskutil (maybe by default?) doesn't pick up the BOOTCAMP partition as part of the logical drive

    Anyway,the most important thing I was able to boot my BOOTCAMP/Windows partition after it was gone/lost/ disappeared from the boot options
     

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